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LCSガンマ線研究グループ

論文、招待講演など（2022年以前）

掲載日：2024年4月1日更新
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査読論文（2010～2022）

  1. High-voltage testing of a 500-kV dc photocathode electron gun,
    R. Nagai, R. Hajima, N. Nishimori, T. Muto, M. Yamamoto, Y.Honda, T.Miyajima, H.Iijima, M,Kuriki, M.Kuwahara, S.Okumi and T.Nakanishi,
    Review of Scientific Instruments, 81, 033304 (2010).doi:10.1063/1.3354980
  2. Nondestructive assay of plutonium and minor actinide in spent fuel using nuclear resonance fluorescence with laser Compton scattering gamma-rays,
    T. Hayakawa, N. Kikuzawa, R. Hajima, T. Shizuma, N. Nishimori, M. Fujiwara and M. Seya,
    Nucl. Instrum. Methods Physics Research A, 621, 695-700 (2010).doi:10.1016/j.nima.2010.06.096
  3. Reanalysis of the (J = 5) state at 592 keV in 180Ta and its role in the ν-process nucleosynthesis of 180Ta in supernovae,
    T. Hayakawa, P. Mohr, T. Kajino, S. Chiba, G. Mathews,
    Physical Review C, 82, 058801（2010）.doi:10.1103/PhysRevC.82.058801
  4. New estimate for the time-dependent thermal nucleosynthesis of 180Tam,
    T. Hayakawa, T. Kajino, S. Chiba, G. Mathews,
    Physical Review C, 81, 052801(2010).doi:PhysRevC.81.052801
  5. Eccentric-fluted beam pipes to damp quadrupole higher-order modes,
    M. Sawamura, T. Furuya, H. Sakai, T. Takahashi, K. Umemori, K. Shinoe,
    Physical Review Special Topics; Accelerators and Beams, 13, 022003(2010).doi:10.1103/PhysRevSTAB.13.022003
  6. Neutrino reactions on 138La and 180Ta via charged and neutral currents by the quasiparticle random-phase approximation,
    M.-K.Cheoun, E.Ha, T.Hayakawa, T.Kajino, S.Chiba,
    Phys. Rev. C 82, 035504 (2010). doi:10.1103/PhysRevC.82.035504
  7. Energy Recovery Linacs for Light Sources,
    R. Hajima.
    Reviews of Accelerator Science and Technology 3, 121-146 (2010).doi:10.1142/S1793626810000397 — accepted manuscript[PDFファイル／1.6MB]
  8. Inverse Compton scattering of coherent synchrotron radiation in an energy recovery linac,
    M. Shimada and R. Hajima,
    Physical Review Special Topics; Accelerators and Beams, 13, 100701 (2010). doi:10.1103/PhysRevSTAB.13.100701
  9. Development of a sub-MeV x-ray source via Compton backscattering,
    K. Kawase, M. Kando, T. Hayakawa, I. Daito, S. Kondo, T. Homma, T. Kameshima, H. Kotaki, L.-M. Chen, Y. Fukuda, A. Faenov, T. Shizuma, T. Shimomura, H. Yoshida, R. Hajima, M. Fujiwara, S.V. Bulanov, T. Kimura, and T. Tajima,
    Nucl. Instr. Meth. A637, S141-S144 (2011). doi:10.1016/j.nima.2010.02.042
  10. Generation and applications of ultra-short electron beams in energy-recovery linacs,
    R. Hajima, M. Shimada. N. Nakamura,
    Nucl. Instr. Meth. A637, S37-S42 (2011).doi:/10.1016/j.nima.2010.02.017
  11. High-brightness electron sources for a next-generation light source based on an energy recovery linac,
    H. Iijima, R. Nagai, N. Nishimori, R. Hajima,
    Electrical Engineering in Japan, 177, 46-53 (2011).doi:10.1002/eej.21154
  12. Development of a 500-kV photocathode DC gun for ERLs,
    N. Nishimori, R Nagai, M Yamamoto, Y Honda, T Miyajima, H Iijima, M Kuriki, M Kuwahara, S Okumi, T Nakanishi and R Hajima,
    J. Phys. : Conf. Ser., 298, 012005 (2011).doi:10.1088/1742-6596/298/1/012005
  13. Spins and parities of astrophysically important 30S states from 28Si(3He, nγ)30S,
    K. Setoodehnia, A. A. Chen, T. Komatsubara, S. Kubono, D. N. Binh, J. F. Carpino, J. Chen, T. Hashimoto, T. Hayakawa, Y. Ishibashi, Y. I to , D. Kahl, T. Moriguchi, H. Ooishi, A. Ozawa, T. Shizuma, Y. Sugiyama, and H. Yamaguchi,
    Phys. Rev. C 83, 018803 (2011). doi:10.1103/PhysRevC.83.018803
  14. Coulomb excitation of 156Gd,
    M. Sugawara, H. Kusakari, Y. Yoshizawa, H. Inoue, T. Morikawa, T. Shizuma, and J. Srebrny,
    Phys. Rev. C 83, 064308 (2011). doi:10.1103/PhysRevC.83.064308
  15. Isomeric states observed in heavy neutron-rich nuclei populated in the fragmentation of a 208Pb beam,
    S.J. Steer, T. Shizuma et al.,
    Phys. Rev. C 84, 044313 (2011). doi:10.1103/PhysRevC.84.044313
  16. Proposal for an advanced hybrid K-edge/XRF densitometry (HKED) using a monochromatic photon beam from laser Compton scattering,
    T. Shizuma, R. Hajima, T. Hayakawa, M. Fujiwara, T. Sonoda, M. Seya,
    Nucl. Instrum. Meth. A 654, 597-603 (2011). doi:10.1016/j.nima.2011.05.082
  17. Nondestructive inspection of explosive materials using linearly polarized two-colored photon beam,
    H. Toyokawa, T. Hayakawa, T. Shizuma, R. Hajima, K. Masuda, H. Ohgaki,
    Nucl. Instrum. Meth. A 652, 21-24 (2011). doi:10.1016/j.nima.2011.01.158
  18. Two-Dimensional Isotope Imaging of Radiation Shielded Materials Using Nuclear Resonance Fluorescence,
    H. Toyokawa, H. Ohgaki, T. Hayakawa, T. Kii, T. Shizuma, R. Hajima, N. Kikuzawa, K. Masuda, F. Kitatani, and H. Harada,
    Jpn. J. Appl. Phys. 50, 100209 (2011) Rapid Communication. doi:10.1143/JJAP.50.100209
  19. Proposal of a Non-Destructive Detection System for Hidden Nuclear Materials Based on a Neutron/Gamma-ray Hybrid System,
    H. Ohgaki, T. Kii, K. Masuda and M. Omer, T. Misawa and C. H. Pyeon, R. Hajima and T. Hayakawa, T. Shizuma, M. Kando and I. Daito, H. Toyokawa,
    Journal of the Korean Physical Society, Vol. 59, 3155-3159 (2011). doi:10.3938/jkps.59.3155
  20. Nuclear resonance fluorescence measurements by quasi-monochromatic linearly polarized photon beams,
    T. Shizuma, T. Hayakawa, H. Ohgaki, H. Toyokawa, T. Komatsubara, A. Tamii and H. Nakada,
    J. Phys.: Conf. Ser. 312, 092056 (2011).doi:10.1088/1742-6596/312/9/092056
  21. Proton acceleration to 40MeV using a high intensity, high contrast optical parametric chirped-pulse amplification/Ti:sapphire hybrid laser system,
    K. Ogura, M. Nishiuchi, T. Shizuma, T. Hayakawa, et al.,
    Opt. Let. 37, 2868-2870 (2012). doi:10.1364/OL.37.002868
  22. Measurement of the entry-spin distribution imparted to the high excitation continuum region of gadolinium nuclei via (p,d) and (p,t) reactions,
    T.J. Ross, C.W. Beausang, R.O. Hughes, J.M. Allmond, C.T. Angell, M.S. Basunia, D.L. Bleuel, J.T. Burke, R.J. Casperson, J.E. Escher, P. Fallon, R. Hatarik, J. Munson, S. Paschalis, M. Petri, L. Phair, J.J. Ressler, N.D. Scielzo, and I.J. Thompson,
    Phys. Rev. C 85, 051304(R) (2012). doi:10.1103/PhysRevC.85.051304
  23. Dipole response of 238U to polarized photons below the neutron separation energy,
    S.L. Hammond, A.S. Adekola, C.T. Angell, H.J. Karwowski, E. Kwan, G. Rusev, A.P. Tonchev, W. Tornow, C.R. Howell and H. Kelley,
    Phys. Rev. C 85, 044302 (2012). doi:10.1103/PhysRevC.85.044302
  24. Spectroscopy of 88Y by the (p,dγ) reaction,
    T.J. Ross, C.W. Beausang, R.O. Hughes, N.D. Scielzo, J.T. Burke, J.M. Allmond, C.T. Angell, M.S. Basunia, D.L. Bleuel, R.J. Casperson, J.E. Escher, P. Fallon, R. Hatarik, J. Munson, S. Paschalis, M. Petri, L. Phair and J.J. Ressler,
    Phys. Rev. C 86, 067301 (2012). doi:10.1103/PhysRevC.86.067301
  25. Magnetic emittance suppression using a bucking coil for a dc photocathode electron gun,
    R. Nagai, R. Hajima and N. Nishimori,
    Rev. Sci. Instrum. 83, 123303 (2012). doi:10.1063/1.4772397
  26. Evidence for radiative coupling of the pygmy dipole resonance to excited states,
    C. Angell, S.L. Hammond, H.J. Karwowski, J.H. Kelley, M. Krticka, E. Kwan, A. Makinaga, and G. Rusev,
    Phys. Rev. C 86, 051302(R) (2012). doi:10.1103/PhysRevC.86.051302
  27. High flux laser Compton scattered gamma-ray source by SBS pulse compressed laser,
    I. Daito, M. Kando, T. Shizuma, T. Hayakawa, C. Angell, R. Hajima, H. Ohgaki,
    J. Plasma Fusion Res. 88, 553-554 (2012). (in Japanese) CiNii
  28. Nondestructive identification of isotopes using nuclear resonance fluorescence,
    T. Shizuma, T. Hayakawa, R. Hajima, N. Kikuzawa, H. Ohgaki and H. Toyokawa,
    Rev. Sci. Instrum. 83, 015103 (2012). doi:10.1063/1.3673002
  29. Supernova neutrino nucleosynthesis of the radioactive 92Nb observed in primitive meteorites,
    T. Hayakawa, K. Nakamura, T. Kajino, S. Chiba, N. Iwamoto, M. K. Cheoun, and G. J. Mathews,
    Astrophys. J. Lett. 779, L9 (2013). doi:10.1088/2041-8205/779/1/L9
  30. Analysis of nuclear resonance fluorescence excitation measured with LaBr3(Ce) detectors near 2 MeV,
    M. Omer, H. Negim, H. Ohgaki, I. Daito, T. Hayakawa, M. Bakr, H. Zen, T. Hori, T. Kii, K. Masuda, R. Hajima, T. Shizuma, H. Toyokawa, N. Kikuzawa,
    Nucl. Instr. Meth. A729, 102-107 (2013). doi:10.1016/j.nima.2013.06.083
  31. Dipole strength distribution in 56Fe,
    T. Shizuma, T. Hayakawa, H. Ohgaki, H. Toyokawa, T. Komatsubara, N. Kikuzawa, T. Inakura, M. Honma, H. Nakada,
    Phys. Rev. C 87, 024301 (2013). doi:10.1103/PhysRevC.87.024301
  32. Nuclear Resonance Fluorescence of 235U Measured with High-Resolution LaBr3(Ce) Scintillation Detectors,
    M. Omer, H. Negm, H. Zen, I. Daito, T. Kii, K. Masuda, H. Ohgaki, R. Hajima, T. Shizuma, T. Hayakawa, N. Kikuzawa,
    Jpn. J. Appl. Phys. 52, 106401 (2013). doi:10.7567/JJAP.52.106401
  33. Generation of a 500-keV electron beam from a high voltage photoemission gun,
    N. Nishimori, R. Nagai, S. Matsuba, R. Hajima, M. Yamamoto, T. Miyajima, Y. Honda, H. Iijima, M. Kuriki, M. Kuwahara,
    Appl. Phys. Lett. 102, 234103 (2013). doi:10.1063/1.4811158
  34. Analysis on effects of transverse electric field in an injector cavity of compact-ERL at KEK, J-G. Hwang, E-S Kim, T. Miyajima, Y. Honda, K. Harada, M. Shimada, R. Takai, T. Kume, S. Nagahashi, T. Obiba, N. Nakamura, S. Sakanaka, R. Hajima, R. Nagai, N. Nishimori, M. Yamamoto, T. Uchiyama, E. Kako, S. Michizono and T. Miura, Nucl. Instrum. Meth. A, 753, 97-104 (2014). doi:10.1016/j.nima.2014.03.045
  35. Improvement to the semi-empirical germanium detector response model at the Compton edge, C. T. Angell, Nucl. Instrum. Meth. A, 752, 33-35 (2014). doi:10.1016/j.nima.2014.03.040
  36. Statistical uncertainties of nondestructive assay for spent nuclear fuel by using nuclear resonance fluorescence, T. Shizuma, T. Hayakawa, C. T. Angell, R. Hajima, F. Minato, K. Suyama, M. Seya, M.S. Johnson, D. P. McNabb, Nucl. Instrum. Meth. A, 737, 170-175 (2014).doi:10.1016/j.nima.2013.11.069
  37. Application of laser Compton scattered gamma-ray beams to nondestructive detection and assay of nuclear material, R. Hajima, T. Hayakawa, T. Shizuma, C. T. Angell, R. Nagai, N. Nishimori, M. Sawamura, S. Matsuba, A. Kosuge, M. Mori and M. Seya, Euro. Phys. J. Special Topics, 223, 1229-1236 (2014). doi:10.1140/epjst/e2014-02177-y>
  38. Experimental investigation of an optimum configuration for a high-voltage photoemission gun for operation at >500 kV, N. Nishimori, R. Nagai, S. Matsuba, R. Hajima, M. Yamamoto, Y. Honda, T. Miyajima, H. Iijima, M. Kuriki and M. Kuwahara, Phys. Rev. ST Accel. Beams, 17, 053401 (2014). doi:10.1103/PhysRevSTAB.17.053401
  39. Erratum: “Concepts in nuclear science illustrated through experiments with radon” [Am. J. Phys. 80, 61-65 (2012)], C. T. Angell, A. C. Kaplan, J. D. Seelig, E. B. Norman and M. Pedrett, Am. J. Phys. 82, 802 (2014).doi:10.1119/1.4883595
  40. Spectroscopy of Gd153 and Gd157 using the (p, dγ) reaction, T. J. Ross, R. O. Hughes, J. M. Allmond, C. W. Beausang, C. T. Angell, M. S. Basunia, D. L. Bleuel, J. T. Burke, R. J. Casperson, J. E. Escher, P. Fallon, R. Hatarik, J. Munson, S. Paschalis, M. Petri, L. W. Phair, J. J. Ressler and N. D. Scielzo, Phys. Rev. C, 90, 044323 (2014).doi:10.1103/PhysRevC.90.044323
  41. Validating resonance properties using nuclear resonance fluorescence, C. T. Angell, R. Hajima, T. Hayakawa, T. Shizuma, H. J. Karwowski and J. Silano, Phys. Rev. C, 90, 054315 (2014). doi:10.1103/PhysRevC.90.054315
  42. Method for determining individual deposition velocities of radon progeny, C. T. Angell, M. Pedretti and E. B. Norman, Applied Radiation and Isotopes, 98, 34-39 (2014).doi:10.1016/j.apradiso.2015.01.006
  43. Neutron angular distribution in (γ, n) reactions with linearly polarized γ-ray beam generated by laser Compton scattering, K. Horikawa, S. Miyamoto, T. Mochizuki, S. Amano, D. Li, K. Imasaki, Y. Izawa, K. Ogata, S. Chiba and T. Hayakawa, Phys. Lett. B, 737, 109-113 (2014).doi:10.1016/j.physletb.2014.08.024
  44. Excited states above the proton threshold in 26Si, T. Komatsubara, S. Kubono, T. Hayakawa, T. Shizuma, A. Ozawa, Y. Ito, Y. Ishibashi, T. Moriguchi, H. Yamaguchi, D. Kahl, S. Hayakawa, D. N. Binh, A. A. Chen, J. Chen, K. Setoodehnia and T. Kajino, Euro. Phys. J. A, 50, 136 (2014). 10.1140/epja/i2014-14136-4
  45. In-beam γ-ray spectroscopy of 30P via the 28Si(3He, p-γ)30P reaction, E. Mcneice, K. Setoodehnia, B. Singh, Y. Abe, D. N. Binh, A. A. Chen, J. Chen, S. Cherubini, S. Fukuoka, T. Hashimoto, T. Hayakawa, Y. Ishibashi, Y. Ito, D. Kahl, T. Komatsubara, S. Kubono, T. Moriguchi, D. Nagae, R. Nishikiori, T. Niwa, A. Ozawa, T. Shizuma, H. Suzuki, H. Yamaguchi and T. Yuasa, Nuclear Data Sheets, 120, 88 (2014).doi:10.1016/j.nds.2014.07.014
  46. Polarization-selectable cavity locking method for generation of laser Compton scattered γ-rays, A. Kosuge, M. Mori, H. Okada, R. Hajima and K. Nagashima, Optics Express, 22, 6613-6619 (2014).doi:10.1364/OE.22.006613
  47. Pulse pileup correction in the presence of a large low-energy background,
    C. T. Angell,
    J. Nucl. Sci. and Tech., 52, 426-433 (2015). DOI:10.1080/00223131.2014.955067
  48. Reaction-yield dependence of the (γ, γ’) reaction of 238U on the target thickness,
    H. Negm, H. Ohgaki, I. Daito, T. Hayakawa, H. Zen, T. Kii, K. Masuda, T. Hori, R. Hajima, T. Shizuma and N. Kikuzawa,
    J. Nucl. Sci. and Tech., 52, 811-820 (2015). DOI:10.1080/00223131.2014.980348
  49. Diffraction of γ-rays with energies of 1.17 and 1.33 MeV by a flat Si crystal,
    S. Matsuba, T. Hayakawa, T. Shizuma, N. Nishimori, R. Nagai, M. Sawamura, C. T. Angell, M. Fujiwara and R. Hajima,
    Jpn. J. Appl. Phys., 54, 052203 (2015). DOI:10.7567/JJAP.54.052203
  50. Demonstration of a transmission nuclear resonance fluorescence measurement for a realistic radioactive waste canister scenario,
    C. T. Angell, R. Hajima, T. Hayakawa, T. Shizuma, H. J. Karwowski, J. Silano,
    Nucl. Instr. Meth. B, 347, 11-19 (2015). DOI:10.1016/j.nimb.2015.01.053
  51. Laser-driven γ-ray, positron, and neutron source from ultra-intense laser-matter interactions,
    Tatsufumi Nakamura and Takehito Hayakawa,
    Phys. Plasmas 22, 083113 (2015). DOI:10.1063/1.4928889
  52. Numerical modeling of quantum beam generation from ultra-intense laser-matter interactions,
    T. Nakamura and T. Hayakawa,
    Laser and Particle Beams 33, 151-155 (2015). DOI:10.1017/S0263034615000269
  53. Enabling in situ Thermometry Using Cryogenic Transmission Nuclear Resonance Fluorescence,
    Christopher T. Angell,
    Nucl. Instr. Meth. B Volume 368, 9-14 (2016). DOI:10.1016/j.nimb.2015.11.026
  54. Narrow-band GeV photons generated from an x-ray free-electron laser oscillator,
    Ryoichi Hajima and Mamoru Fujiwara,
    Phys. Rev. Accel. Beams 19, 020702 (2016). DOI:10.1103/PhysRevAccelBeams.19.020702
  55. Spatial anisotropy of neutrons emitted from the 56Fe(γ,n)55Fe reaction with a linearly polarized γ-ray beam,
    T. Hayakawa, T. Shizuma, S. Miyamoto, S. Amano, A. Takemoto, M. Yamaguchi, K. Horikawa, H. Akimune, S. Chiba, K. Ogata, and M. Fujiwara,
    Phys. Rev. C 93, 044313 (2016). DOI:0.1103/PhysRevC.93.044313
  56. Proposal for selective isotope transmutation of long-lived fission products using quasi-monochromatic γ-ray beams,
    Takehito Hayakawa, Shuji Miyamoto, Ryoichi Hajima, Toshiyuki Shizuma, Sho Amano, Satoshi Hashimoto, Tsuyoshi Misawa,
    Journal of Nuclear Science and Technology, 53, 2064-2071 (2016) DOI:10.1080/00223131.2016.1194776
  57. Precision Measurement of Delbrück Scattering via Laser Compton Scattered γ-rays,
    J. K. Koga and T. Hayakawa,
    8th International Conference on Inertial Fusion Sciences and Applications (IFSA 2013),
    Journal of Physics: Conference Series, Volume 688, Number 1, 012050 (2016). DOI:10.1088/1742-6596/688/1/012050
  58. Generation of High Energy Gamma-ray by Laser Compton Scattering of 1.94-μm Fiber Laser in UVSOR-III Electron Storage Ring,
    Heishun Zen, Yoshitaka Taira, Taro Konomi, Takehito Hayakawa, Toshiyuki Shizuma, Junichiro Yamazaki, Toshiteru Kii, Hiroyuki Toyokawa, Masahiro Katoh, d, Hideaki Ohgaki,
    Energy Procedia, Volume 89, June 2016, Pages 335–345 (2016). DOI:10.1016/j.egypro.2016.05.044
  59. Simple synchronization technique of a mode-locked laser for Laser-Compton scattering γ-ray source,
    Michiaki Mori, Atsushi Kosuge, Hiromitsu Kiriyama, Ryoichi Hajima, and Kiminori Kondo
    Rev. Sci. Instrum. 87, 063307 (2016). DOI:10.1063/1.4954733 — accepted manuscript[PDFファイル／759KB]
  60. High voltage threshold for stable operation in a dc electron gun,
    M. Yamamoto and N. Nishimori,
    Appl. Phys. Lett. 109, 014103 (2016); DOI:10.1063/1.4955180
  61. Enhanced diffraction of MeV γ rays by mosaic crystals
    S. Matsuba, T. Hayakawa, T. Shizuma, N. Nishimori, R. Nagai, M. Sawamura, C.T. Angell, M. Fujiwara, and R. Hajima
    Japanese Journal of Applied Physics 55, 112402 (2016). DOI:10.7567/JJAP.55.112402
  62. Branching and fragmentation of dipole strength in  181Ta in the region of the scissors mode
    C. T. Angell, R. Hajima, T. Shizuma, B. Ludewigt and B.J. Quiter.
    Phys. Rev. Lett. 117, 142501 (2016). DOI:10.1103/PhysRevLett.117.142501 — published manuscript[PDFファイル／373KB]
  63. Measurement of the isomer production ratio for the 112Cd(n,γ)113Cd reaction using neutron beams at J-PARC,
    T. Hayakawa, Y. Toh, M. Huang, T. Shizuma, A. Kimura, S. Nakamura, H. Harada, N. Iwamoto, S. Chiba, and T. Kajino,
    Phys. Rev. C 94, 055803 (2016). DOI:10.1103/PhysRevC.94.055803 — published manuscript[PDFファイル／351KB]
  64. Quasi-monoenergetic positron beam generation from ultra-intense laser-matter interactions,
    Tatsufumi Nakamura and Takehito Hayakawa,
    Physics of Plasmas 23, 103109 (2016). DOI: 10.1063/1.4965914
  65. Narrow-band photon beam via laser Compton scattering in an Energy Recovery Linac
    T. Akagi, A. Kosuge, S. Araki, R. Hajima, Y. Honda, T. Miyajima, M. Mori, R. Nagai, N. Nakamura, M. Shimada, T. Shizuma, N. Terunuma, and J. Urakawa
    Phys. Rev. Accel. Beams 19, 114701 (2016). DOI:10.1103/PhysRevAccelBeams.19.114701 — published manuscript[PDFファイル／2.9MB]
  66. Status and Perspectives of Compton Sources,
    R. Hajima,
    Physics Procedia, 84, 35–39 (2016). DOI:10.1016/j.phpro.2016.11.007
  67. Nondestructive Inspection System for Special Nuclear Material Using Inertial Electrostatic Confinement Fusion Neutrons and Laser Compton Scattering Gamma-rays,
    H. Ohgaki, I. Daito, H. Zen, T. Kii, K. Masuda, T. Misawa, R. Hajima, T. Hayakawa, T. Shizuma, M. Kando, and S. Fujimoto,
    IEEE Trans Nuclear Science 64, 1635-1640 (2017). DOI: 10.1109/TNS.2017.2652619 — accepted manuscript[PDFファイル／632KB]
  68. Explosive Nucleosynthesis Study Using Laser Driven γ-ray Pulses,
    Takehito Hayakawa, Tatsufumi Nakamura, Hideyuki Kotaki, Masaki Kando, Toshitaka Kajino,
    Quantum Beam Sci. 2017, 1(1), 3. DOI:10.3390/qubs1010003 (Open Access)
  69. Production of medical 99mTc isotope via photonuclear reaction,
    M. Fujiwara, K. Nakai, N. Takahashi, T. Hayakawa, T. Shizuma, S. Miyamoto, G. T. Fan, A. Takemoto, M. Yamaguchi, M. Nishimura,
    Phys. Part. Nuclei 48, 124-133 (2017). DOI:10.1134/S1063779617010075
  70. Short-baseline electron antineutrino disappearance study by using neutrino sources from 13C + 9Be reaction,
    Jae Won Shin, Myung-Ki Cheoun, Toshitaka Kajino, Takehito Hayakawa,
    Journal of Cosmology and Astroparticle Physics, JCAP 04(2017)004. DOI:10.1088/1475-7516/2017/04/044
  71. Possible precise measurement of Delbrück scattering using polarized photon beams,
    J.K. Koga and T. Hayakawa,
    Phys. Rev. Lett. 118, 204801 (2017). DOI:10.1103/PhysRevLett.118.204801 — published manuscript[PDFファイル／331KB]
  72. Including Delbrück Scattering in GEANT4
    M. Omer and R. Hajima,
    Nuclear Instruments and Methods in Physics Research, B 405, Pages 43–49 (2017). DOI:10.1016/j.nimb.2017.05.028
    Free Download until 12, July 2017.
  73. Gamma-ray vortices from nonlinear inverse Thomson scattering of circularly polarized light,
    Y. Taira, T. Hayakawa and M. Katoh,
    Scientific Reports 7, Article number: 5018(2017) DOI: 10.1038/s41598-017-05187-2 (Open Access)
  74. Spectroscopic factor and proton formation probability for the d3/2 proton emitter 151mLu,
    F. Wang, B.H. Sun, Z. Liu, R.D. Page, C. Qi, C. Scholey, S.F. Ashley, L. Bianco, I.J. Cullen, I.G. Darby, S. Eeckhaudt, A.B. Garnsworthy, W. Gelletly, M.B. Gomez-Hornillos, T. Grahn, P.T. Greenlees, D.G. Jenkins, G.A. Jones, P. Jones, D.T. Joss, R. Julin, S. Juutinen, S. Ketelhut, S. Khan, A. Kishada, M. Leino, M. Niikura, M. Nyman, J. Pakarinen, S. Pietri, Z. Podolyak, P. Rahkila, S. Rigby, J. Saren, T. Shizuma, J. Sorri, S. Steer, J. Thomson, N.J. Thompson, J. Uusitalo, P.M. Walker, S. Williams, H.F. Zhang, W.Q. Zhang, L.H. Zhu,
    Physics Letters B, 770, 83–87 (2017). DOI:10.1016/j.physletb.2017.04.034 (open access)
  75. Measurement of deflection on germanium and gold prisms using 1.7 MeV laser Compton scattering γ-rays,
    T. Kawasaki, S. Naito, Y. Sano, T. Hayakawa, T. Shizuma, R. Hajima, and S. Miyamoto,
    Physics Letters A, Volume 381, Issue 36, 25 September 2017, Pages 3129-3133 (2017). DOI:10.1016/j.physleta.2017.07.030 (Open Access)
  76. S2E simulation of an ERL-based high-power EUV-FEL source for lithography,
    N. Nakamura, R. Kato, T. Miyajima, M. Shimada, T. Hotei and R. Hajima,
    IOP Conf. Series: Journal of Physics: Conf. Series 874 (2017) 012013. DOI:10.1088/1742-6596/874/1/012013 (Open Access)
  77. Low-lying dipole strength in 52Cr,
    T. Shizuma, T. Hayakawa, I. Daito, H. Ohgaki, S. Miyamoto, and F. Minato,
    Physical Review C 96, 044316 (2017). DOI:10.1103/PhysRevC.96.044316 — published manuscript[PDFファイル／498KB]
  78. Generating carrier-envelope-phase stabilized few-cycle pulses from a free-electron laser oscillator,
    R. Hajima and R. Nagai,
    Physical Review Letters, 119, 204802 (2017). DOI:10.1103/PhysRevLett.119.204802 Published PDF:PhysRevLett.119.204802[PDFファイル／454KB]
  79. Construction and commissioning of the compact energy-recovery linac at KEK,
    M. Akemoto, D. Arakawa, S. Asaoka, E. Cenni, M. Egi, K. Enami, K. Endo, S. Fukuda, T. Furuya, K. Haga, R. Hajima, K. Hara, K. Harada, T. Honda, Y. Honda, T. Honma, K. Hosoyama, E. Kako, H. Katagiri, H. Kawata, Y. Kobayashi, Y. Kojima, Y. Kondou, O. Tanaka, T. Kume, M. Kuriki, H. Matsumura, H. Matsushita, S. Michizono, T. Miura, T. Miyajima, S. Nagahashi, R. Nagai, H. Nakai, H. Nakajima, N. Nakamura, K. Nakanishi, K. Nigorikawa, N. Nishimori, T. Nogami, S. Noguchi, T. Obina, F. Qiu, H. Sagehashi, H. Sakai, S. Sakanaka, S. Sasaki, K. Satoh, M. Sawamura, M. Shimada, K. Shinoe, T. Shishido, M. Tadano, T. Takahashi, R. Takai, T. Takenaka, Y. Tanimoto, T. Uchiyama, A. Ueda, K. Umemori, K. Watanabe, M. Yamamoto,
    Nuclear Instruments and Methods in Physics Research, A. 877, 197-219 (2018). DOI: 10.1016/j.nima.2017.08.051
    accepted manuscript[PDFファイル／3.86MB] published manuscript(free download until Dec. 5, 2017)
  80. 95gTc and 96gTc as alternatives to medical radioisotope 99mTc,
    Takehito Hayakawa, Yuichi Hatsukawa, ToruTanimori,
    Heliyon, Volume 4, Issue 1, January 2018, e00497.
    DOI: 10.1016/j.heliyon.2017.e00497 (open access).
  81. Properties of the RF transmission line of a C-shaped waveguide,
    M. Sawamura, M. Egi, K. Enami, T. Furuya, H. Sakai and K. Umemori,
    Nuclear Instruments and Methods in Physics Research A882, 30-40 (2018). 10.1016/j.nima.2017.09.067, published manuscript(free download for 50 days) accepted manuscript[PDFファイル／10.94MB]
  82. Development of a Multialkali Photocathode Dc Gun for a Smith-Purcell Terahertz Free-Electron Laser,
    Nobuyuki Nishimori, Ryoji Nagai, Masaru Sawamura and Ryoichi Hajima,
    Particles, 1(1), 166-174 (2018).  doi:10.3390/particles1010012 (open access)
  83. Short-Lived Radioisotope 98Tc Synthesized by the Supernova Neutrino Process,
    Takehito Hayakawa, Heamin Ko, Myung-Ki Cheoun, Motohiko Kusakabe, Toshitaka Kajino, Mark D. Usang, Satoshi Chiba, Ko Nakamura, Alexey Tolstov, Ken’ichi Nomoto, Masa-aki Hashimoto, Masaomi Ono, Toshihiko Kawano, and Grant J. Mathews,
    Phys. Rev. Lett. 121, 102701 (2018). DOI: 10.1103/PhysRevLett.121.102701 Short-Lived Radioisotope 98Tc Synthesized by the Supernova Neutrino Process[PDFファイル／330KB]
  84. Generation of 1-MeV quasi-monochromatic gamma-ray for precise measurement of Delbrück scattering by laser Compton scattering,
    H. Zen, T. Hayakawa, E. Salehi, M. Fujimoto, T. Shizuma, J.K. Koga, T. Kii, M. Katoh, H. Ohgaki,
    Journal of Physics: Conference Series 1067, 092003 (2018) DOI: 10.1088/1742-6596/1067/9/092003 (open access)
  85. Dipole strength distribution in 206Pb for the evaluation of the neutron capture cross section of 205Pb,
    T. Shizuma, N. Iwamoto, A. Makinaga, R. Massarczyk, R. Schwengner et al.,
    Phys. Rev. C 98, 064317 (2018). DOI: http://10.1103/PhysRevC.98.064317 Published manuscript[PDFファイル／700KB]
  86. Evaluation of neutron capture cross section on 205Pb with photonuclear data,
    N. Iwamoto and T. Shizuma,
    EPJ Web Conf, 178, 06004 (2018). DOI:10.1051/epjconf/201817806004 (open access)
  87. Astrophysical relevance of the low-energy dipole strength of 206Pb,
    A.P. Tonchev, N.Tsoneva, S.Goriely, C.Bhaita, C.W.Arnold, S.L.Hammond, J.H.Kelley, E.Kwan, H.Lenske, J.Piekarewicz, R.Raut, G.Rusev, T. Shizuma, and W.Tornow,
    EPJ Web Conf, 178, 1(2018). DOI:10.1051/epjconf/201817804003 (open access)
  88. Spectral shape analysis for electron antineutrino oscillation study by using 8Li generator with 252Cf source,
    Jae Won Shin, Myung-Ki Cheoun, Toshitaka Kajino and Takehito Hayakawa,
    Journal of Cosmology and Astroparticle Physics, Volume 2018, 024 (2018).
    DOI:10.1088/1475-7516/2018/09/024
  89. Compton Scattering of Gamma-Ray Vortex with Laguerre Gaussian Wave Function,
    Tomoyuki Maruyama, Takehito Hayakawa, and Toshitaka Kajino,
    Scientific Reports, in press (2018).
  90. Electron tracking Compton camera imaging of technetium-95m,
    Yuichi Hatsukawa, Takehito Hayakawa, Kazuaki Tsukada, Kazuyuki Hashimoto, Tetsuya Sato, Masato Asai, Atsushi Toyoshima, Toru Tanimori, Shinya Sonoda, Shigeto Kabuki, Hiroyuki Kimura, Atsushi Takada, Tetsuya Mizumoto, Seiya Takaki,
    PLOS ONE, in press (2018).
  91. Azimuthal angle distributions of neutrons emitted from the 9Be(γ,n) reaction with linearly polarized γ-rays,
    Yuma Kikuchi, Kazuyuki Ogata, Takehito Hayakawa, Satoshi Chiba,
    Physical Review C, 98, 064611 (2018). DOI: http://10.1103/PhysRevC.98.064611 Published manuscript[PDFファイル／321KB]
  92. レーザー駆動中性子源のパルス幅評価,
    朝比奈 隆志, 田中 浩基, 安部 勇輝，森 芳孝，余語 覚文，長友 英夫，花山 良平，早川 岳人,
    レーザー研究, Vol.46、No.10、594、(2108).
  93. Compton Scattering of Gamma-Ray Vortex with Laguerre Gaussian Wave Function,
    Tomoyuki Maruyama, Takehito Hayakawa, and Toshitaka Kajino,
    Scientific Reports 9, Article number: 51 (2019) publisher’s page (Open Access)
    doi:10.1038/s41598-018-37096-3
  94. Field emission studies in vertical test and during cryomodule operation using precise x-ray mapping system,
    Hiroshi Sakai, Enrico Cenni, Kazuhiro Enami, Takaaki Furuya, Masaru Sawamura, Kenji Shinoe, and Kensei Umemori,
    Phys. Rev. Accel. Beams 22, 022002 (2019),
    doi:10.1103/PhysRevAccelBeams.22.022002 (Open Access)
  95. Demonstration of tomographic imaging of isotope distribution by nuclear resonance fluorescence,
    Heishun Zen, Hideaki Ohgaki, Yoshitaka Taira , Takehito Hayakawa, Toshiyuki Shizuma, Izuru Daito,
    Jun-ichiro Yamazaki, Toshiteru Kii, Hiroyuki Toyokawa, and Masahiro Katoh,
    AIP Advances 9, 035101 (2019).
    doi:10.1063/1.5064866 (Open Access)
  96. Operational experience of a 500 kV photoemission gun,
    Nobuyuki Nishimori, Ryoji Nagai, Ryoichi Hajima, Masahiro Yamamoto, Yosuke Honda, Tsukasa Miyajima, and Takashi Uchiyama,
    Phys. Rev. Accel. Beams 22, 053402 – Published 14 May 2019,
    doi:10.1103/PhysRevAccelBeams.22.053402 (Open Access)
  97. Compton Scattering of Hermite Gaussian Wave γ Ray
    Tomoyuki Maruyama, Takehito Hayakawa & Toshitaka Kajino,
    Scientific Reports, volume 9, Article number: 7998 (2019)
    doi:10.1038/s41598-019-44120-7 (Open Access)
  98. Spin and parity determination of the 3.004-MeV level in 27Al: Its low-lying multiplet structure
    T. Shizuma, M. Omer, R. Hajima, N. Shimizu, and Y. Utsuno
    Phys. Rev. C 100, 014307 – Published 10 July 2019,
    doi:10.1103/PhysRevC.100.014307
  99. Validating polarization effects in γ-rays elastic scattering by Monte Carlo simulation
    M. Omer and R. Hajima
    New Journal of Physics, 21, 113006 (2019)
    doi:10.1088/1367-2630/ab4d8a
  100. Record high extraction efficiency of free electron laser oscillator, Heishun Zen,Hideaki Ohgaki and Ryoichi Hajima, Applied Physics Express,  13 102007 (2020). 10.35848/1882-0786/abb690
  101. Compton scattering of quasi-monochromatic γ-rays beam, M. Omer, T. Shizuma and R. Hajima, Nuclear Inst. and Methods in Physics Research, A 951 (2020) 162998. doi: 10.1016/j.nima.2019.162998
  102. Neutrino Process in Core-collapse Supernovae with Neutrino Self-interaction and MSW Effects, Heamin Ko, Myung-Ki Cheoun, Eunja Ha, Motohiko Kusakabe, Takehito Hayakawa,  Hirokazu Sasaki, Toshitaka Kajino, Masa-aki Hashimoto, Masaomi Ono,  Mark D. Usang, Satoshi Chiba, Ko Nakamura, Alexey Tolstov,  Ken'ichi Nomoto, Toshihiko Kawano, and Grant J. Mathew, The Astrophysical Journal Letters, vol.891, L24 (2020). doi:10.3847/2041-8213/ab775b
  103. High-extraction-efficiency operation of a midinfrared free electron laser enabled by dynamic cavity desynchronization, Heishun Zen, Hideaki Ohgaki, and Ryoichi Hajima Phys. Rev. Accel. Beams 23, 070701 (2020). doi:10.1103/PhysRevAccelBeams.23.070701
  104. Selective Isotope CT Imaging Based on Nuclear Resonance Fluorescence Transmission Method, Ali, Khaled; Ohgaki, Hideaki; Zen, Heishun; Kii, Toshiteru; Hayakawa, Takehito; Shizuma, Toshiyuki; Toyokawa, Hiroyuki; Taira, Yoshitaka; Iancu, Violeta; Turturica, Gabriel; Ur, Calin Alexandru; Fujimoto, Masaki; Katoh, Masahiro, IEEE Transactions on Nuclear Science (2020), 67(8): 1976-1984 (2020). doi: 10.1109/TNS.2020.3004565
  105. Spatially Resolved Spectral Imaging by A THz-FEL, Akinori Irizawa, Masaki Fujimoto, Keigo Kawase,Ryukou Kato, Hidenori Fujiwara, Atsushi Higashiya, Salvatore Macis, Luca Tomarchio, Stefano Lupi, Augusto Marcelli and Shigemasa Suga, Condensed Matter 2020, 38 (2020). doi: 10.3390/condmat5020038
  106. Extremely high-intensity operation of a THz free-electron laser using an electron beam with a higher bunch, Keigo Kawase, Masaya Nagai, Kazuya Furukawa, Masaki Fujimoto, Ryukou Kato, Yoshihide Honda, Goro Isoyama, Nucl. Instr. Meth.960, 163582 (2020). doi:10.1016/j.nima.2020.163582
  107. Neutrino Self-interaction and MSW Effects by an Equi-partitioned Fermi?Dirac Neutrino Luminosity on the Supernova Neutrino-process, Heamin Ko, Myung-Ki Cheoun, Motohiko Kusakabe, Takehito Hayakawa, Hirokazu Sasaki, Toshitaka Kajino, and Grant J. Mathews, JPS Conf. Proc. 31, 011027 (2020), doi:10.7566/JPSCP.31.011027
  108. Nuclear Cosmochronometer for Supernova Neutrino Process, Takehito Hayakawa, Motohiko Kusakabe, Toshitaka Kajino, Myung-Ki Cheoun, Heamin Ko, Grant J. Mathews, Alexey Tolstov, Ken’ichi Nomoto, Satoshi Chiba, Toshihiko Kawano, Masa-aki Hashimoto, and Masaomi Ono, JPS Conf. Proc. 31, 011028, doi:10.7566/JPSCP.31.011028
  109. Bandwidth of a Compton radiation source with an electron beam of asymmetric emittance, R. Hajima, Nucl. Instr. Meth. A 985, 164655 (2021). doi: 10.1016/j.nima.2020.164655
  110. Low-lying electric and magnetic dipole strengths in 207Pb, T. Shizuma, F. Minato, M. Omer, T. Hayakawa, H. Ohgaki, and S. Miyamoto, Physical Review C, 103, 024309 (2021). doi:https://doi.org/10.1103/PhysRevC.103.024309
  111. Few-Cycle Infrared Pulse Evolving in FEL Oscillators and Its Application to High-Harmonic Generation for Attosecond Ultraviolet and X-ray Pulses, R. Hajima, Atoms 2021, 9(1), 15 (2021). doi:https://doi.org/10.3390/atoms9010015
  112. Isomer production ratio of the 112Cd(n,γ)113Cd reaction in an s-process branching point, Takehito Hayakawa, Yosuke Toh, Atsushi Kimura, Shoji Nakamura, Toshiyuki Shizuma, Nobuyuki Iwamoto, Satoshi Chiba, and Toshitaka Kajino, Phys. Rev. C 103, 045801 – Published 5 April 2021. https://doi.org/10.1103/PhysRevC.103.045801
  113. Three-Dimensional Nondestructive Isotope-Selective Tomographic Imaging of 208Pb Distribution via Nuclear Resonance Fluorescence, K. Ali, H. Zen, H. Ohgaki, T. Kii, T. Hayakawa, T. Shizuma, H. Toyokawa, M. Fujimoto, Y. Taira, M. Katoh,  Applied Sciences. 2021; 11(8):3415. https://doi.org/10.3390/app11083415
  114. Direct evaluation of high neutron density environment using (n,2n) reaction induced by laser-driven neutron source, Takato Mori, Akifumi Yogo, Takehito Hayakawa, Seyed R. Mirfayzi, Zechen Lan, Yuki Abe, Yasunobu Arikawa, Daniil Golovin, Tianyun Wei, Yuki Honoki, Mitsuo Nakai, Kunioki Mima, Hiroaki Nishimura, Shinsuke Fujioka, and Ryosuke Kodama, Phys. Rev. C 104, 015808 – Published 30 July 2021. https://doi.org/10.1103/PhysRevC.104.015808
  115. Single shot radiography by a bright source of laser-driven thermal neutrons and x-rays, Akifumi Yogo, Seyed Reza Mirfayzi, Yasunobu Arikawa, Yuki Abe, Tianyun Wei, Takato Mori, Zechen Lan, Yuki Hoonoki, Daniil O. Golovin, Keisuke Koga, Yosuke Suzuki, Masato Kanasaki, Shinsuke Fujioka, Mitsuo Nakai, Takehito Hayakawa, Kunioki Mima, Hiroaki Nishimura, Satyabrata Kar and Ryosuke Kodama, Applied Physics Express 14, 106001 (2021). https://doi.org/10.35848/1882-0786/ac2212
  116. Reconstruction of the laser Compton scattered gamma-ray distribution in the energy-angle phase space from crystal diffraction data, Ryoichi Hajima, Takehito Hayakawa, Toshiyuki Shizuma, Shuji Miyamoto and Shunya Matsuba, Applied Physics Express 14, 104004 (2021). https://doi.org/10.35848/1882-0786/ac2631
  117. Spectral determination method and its application to γ-ray determination, Masumi Oshima, Jun Goto, Tadahiro Kin, Takehito Hayakawa, Yuji Ohta, Hirofumi Shinohara, Kiyoshi Kitamura, Hirofumi Seto, Keisuke Isogai, Journal of Nuclear Science and Technology (2021). https://doi.org/10.1080/00223131.2021.1976296
  118. Fusion Visualization Technique to Improve a Three-Dimensional Isotope-Selective CT Image Based on Nuclear Resonance Fluo-rescence with a Gamma-CT Image, Khalid Ali, Heishun Zen, Hideaki Ohgaki, Toshiteru Kii, Takehito Hayakawa, Toshiyuki Shizuma, Masahiro Katoh, Yoshitaka Taira, Masaki Fujimoto, Hiroyuki Toyokawa, Applied Sciences, 11, 11866 (2021). https://doi.org/10.3390/app112411866
  119. Generation of photon vortex by synchrotron radiation from electrons in Landau states under astrophysical magnetic fields, Tomoyuki Maruyama, Takehito Hayakawa, Toshitaka Kajino, Myung-Ki Cheoun, Physics Letters B, 826, 136779 (2021). https://doi.org/10.1016/j.physletb.2021.136779
  120. Construction and commissioning of mid-infrared self-amplified spontaneous emission free-electron laser at compact energy recovery linac, osuke Honda , Masahiro Adachi , Shu Eguchi , Masafumi Fukuda , Nao Higashi , Ryukou Kato , Takako Miura , Tsukasa Miyajima , Shinya Nagahashi , Ryoichi Hajima, Others, Review of Scientific Instruments, 92, 113101 (2021). https://doi.org/10.1063/5.0072511
  121. Impact of hypernova νp-process nucleosynthesis on the galactic chemical evolution of Mo and Ru、Horokazu Sasaki, Yuta Yamazaki, Toshitaka Kajino, Takehito Hayakawa, Myung-Ki Cheoun, Heamin Ko, The Astrophysical Journal, 924, 29 (2022). https://doi.org/10.3847/1538-4357/ac34f8
  122. International workshop on next generation gamma-ray source, Calvin R Howell, Mohammad W Ahmed, Andrei Afanasev, David Alesini, John Annand, Ani Aprahamian, Dimiter Balabanski, Stephen Benson, Aron Bernstein, Carl Brune, JM Byrd, Bruce Carlsten, Arthur Champagne, Swapan Chattopadhyay, David Davis, Evie Downie, J Matthew Durham, Gerald Feldman, Haiyan Gao, Cameron GR Geddes, Harald Griesshammer, Ryoichi Hajima, Hao Hao, David Hornidge, Johann Isaak, RVF Janssens, David Kendellen, Mike Kovash, Phillip Martel, Ulf-G Meissner, Rory Miskimen, Barbara Pasquini, Daniel R Phillips, Norbert Pietralla, Deniz Savran, Matthias Schindler, Mark Sikora, W Michael Snow, Roxanne Springer, CM Sun, Chuanxiang Tang, Brian Tiburzi, Anton Tonchev, Werner Tornow, Calin Alexander Ur, Dong Wang, HR Weller, V Werner, Ying K Wu, Jun Yan, Zheng Zhao, Andreas Zilges, FZ Zomer, Journal of Physics G: Nuclear and Particle Physics, 2021. https://doi.org/10.1088/1361-6471/ac2827
  123. Non-destructive inspection of water or high-pressure hydrogen gas in metal pipes by the flash of neutrons and x rays generated by laser, Tianyun Wei, Akifumi Yogo, Takehito Hayakawa, Yasunobu Arikawa, Yuki Abe, Maiko Nakanishi, Seyed Reza Mirfayzi, Zechen Lan, Takato Mori, Kunioki Mima, Shinsuke Fujioka, Masakatsu Murakami, Mitsuo Nakai, Hiroaki Nishimura, Satyabrata Kar, and Ryosuke Kodama, AIP Advances 12, 045220 (2022); https://doi.org/10.1063/5.0088997
  124. Thermal neutron fluence measurement using a cadmium differential method at the laser-driven neutron source, Takato Mori, Akifumi Yogo, Takehito Hayakawa, Seyed R Mirfayzi, Zechen Lan, Tianyun Wei, Yuki Abe, Yasunobu Arikawa, Mitsuo Nakai, Kunioki Mima, Hiroaki Nishimura, Shinsuke Fujioka and Ryosuke Kodama, J. Phys. G: Nucl. Part. Phys. 49 065103 https://doi.org/10.1088/1361-6471/ac6272
  125. Calculating off-axis efficiency of coaxial HPGe detectors by Monte Carlo simulation, Mohamed Omer, Toshiyuki Shizuma, Ryoichi Hajima, Mitsuo Koizumi, Radiation Physics and Chemistry 198, 110241 (2022). https://doi.org/10.1016/j.radphyschem.2022.110241 
  126. Impact of hypernova νp-process nucleosynthesis on the galactic chemical evolution of Mo and Ru, Hirokazu Sasaki, Yuta Yamazaki, Toshitaka Kajino, Motohiko Kusakabe, Takehito Hayakawa, Myung-Ki Cheoun, Heamin Ko, Grant J. Mathews, Astrophysical Journal 924, 29 (2022). DOI: 10.3847/1538-4357/ac34f8
  127. High power light source for future extreme ultraviolet lithography based on energy-recovery linac free-electron laser, Hiroshi Kawata, Norio Nakamura, Hiroshi Sakai, Ryukou Kato, Ryoichi Hajima, J. of Micro/Nanopatterning, Materials, and Metrology, 21(2), 021210 (2022). https://doi.org/10.1117/1.JMM.21.2.021210
  128. Generation of primary photons through inverse Compton scattering in Geant4, Gianfranco Paternó, Paolo Cardarelli, Matteo Bianchini, and Angelo Taibi, Illya Drebot and Vittoria Petrillo, Ryoichi Hajima, Physical Review Accelerators and Beams  25, 084601 (2022). https://doi.org/10.1103/PhysRevAccelBeams.25.084601
  129. Low-lying dipole strength distribution in 204Pb, T. Shizuma, S. Endo, A. Kimura, R. Schwengner, R. Beyer, T. Hensel, H. Hoffmann, A. Junghans, K. Romer, S. Turkat, A. Wagner, and N. Tsonevam, Physical Review C 106, 044326 (2022). https://doi.org/10.1103/PhysRevC.106.044326
  130. Comprehensive Analysis of the Neutrino Process in the Core-collapsing Supernova, H. Ko, D. Jang, M-K. Cheoun, M. Kusakabe, H. Sasaki, X. Yao, T. Kajino, T. Hayakawa, M. Ono, T. Kawano, G.J. Mathews, The Astrophysical Journal, 937, 116-152 (2022). https://doi.org/10.3847/1538-4357/ac88cd

解説、記事（2010～2022）

  1. エネルギー回収型リニアック（ERL）におけるビーム物理（Beam Physics Issues in Energy-Recovery Linacs）,
    R. Hajima,
    Plasma Fusion Res. 86, 473-477 (2010) (in Japanese).エネルギー回収型リニアック（ERL）におけるビーム物理[PDFファイル／1.09MB]
  2. Development of a Photocathode DC Electron-Gun for Next-Generation Light-Sources
    Nagai, R. Hajima, N. Nishimori, T. Muto, M. Yamamoto, Y. Honda, T. Miyajima, M. Kuriki, H. Iijima, M. Kuwahara, S. Okumi, T. Nakanishi,
    KASOKUKI, 7, 88-94 (2010).
  3. Inverse Compton Scattering by Coherent Synchrotron Radiation,
    M. Shimada and R. Hajima,
    J. Japanese Soc. Synchrotron Radiation Research, 24, 321 (2011). (in Japanese)
  4. Nondestructive isotope detection of hidden materials by using nuclear resonance fluorescence,
    H. Ohgaki and T. Hayakawa,
    Oyo Butsuri, 80, 0955 (2011). (in Japanese)
  5. Nondestruct1ve isotope detect1on by using laser Compton scattering gamma-ray based nuclear resonance fluorescence, H. Ohgaki,T. Hayakawa and I. Daito, The Review of Laser Engineering 40, 18-193 (2012). (in Japanese).
  6. Proposal of Superconducting Spoke Cavity Development for Electron Accelerators,R. Hajima, M. Sawamura, Y. Iwashita,Particle Society of Japan, 10, 238-245 (2013) (in Japanese).
  7. 日本原子力学会誌、Vol. 56, No. 7 (2014) 448-452. 解説：核セキュリティにおける核物質の非破壊測定技術 早川岳人、藤原守
  8. 会議報告：Workshop on Energy Recovery Linacs (ERL2015)
    羽島良一、山本将博、中村典雄、阪井寛志、帯名崇
    「加速器」 Vol.12, No.3, 2015, 162-164
  9. レーザーコンプトン散乱γ線を用いた光核反応理論の実証
    早川岳人、宮本修治
    Isotope News 2015年6月号 No.734, 12-16
  10. 太陽系を作った超新星爆発はいつ起きたのか？ --宇宙核時計ニオブ92--
    早川岳人、梶野敏貴、千葉敏
    日本物理学会誌、Vol.70, No.11, 2015, 824-829
  11. 「電子ビームとレーザーの衝突によるX線の発生」、
    羽島良一、照沼信浩、
    Isotope News 2016年1月号, No.741, pp. 16-20 （2016）.出版社による全文公開[PDFファイル／1.47MB]
  12. 「会議報告：ビーム物理研究会、ビーム物理若手の会」、
    羽島良一、原田寛之、神野智、上坂充、
    「加速器」、Vol. 13, No.1, pp.52-53 (2016).
  13. 「会議報告：Nuclear Photonics 2016国際会議報告」、
    羽島良一、
  14. 「加速器」、vol.13, No.4, pp.270-271 (2016).
  15. ILCの多角的活用,岩下芳久, 山本樹, 河村成肇, 牧村俊助, 野村大輔, 下村浩一郎, 山崎高幸, 柏木茂, 兵頭俊夫, 三島賢二, 早川岳人, 嶋達志,加速器, 14, No.4, 236(2017)
  16. 学会活動のあるべき姿,羽島良一,加速器, Vol.15, No.1, p.2 (2018).
  17. ILCの多角的活用の可能性,森川祐, 山本樹, 島田美帆, 下村浩一郎, 河村成肇, 山崎高幸, 牧村俊助, 野村大輔, 川島祥孝, 早川岳人, 丸山智幸, 三島賢二, 加速器, Vol.15, No.3, pp.132-138 (2018).
  18. Geant4 Physics Process for Elastic Scattering of γ-Rays,Mohamed Omer and Ryoichi Hajima, JAEA-Data/Code 2018-007, Japan Atomic Energy Agency, June 2018. DOI:10.11484/jaea-data-code-2018-007.
  19. 自由電子レーザーによる位相安定化パルス光の発生,羽島良一,パリティ, Vol.34, No.1, pp.12-14 (2019)
  20. 反電子ニュートリノ反応で98Tc を生成,早川岳人, 梶野敏貴,Isotope News, No.762, pp.26-29 (2019)
  21. 原子核のハサミ状振動を探る（最近の研究から）, 静間俊行, 日本物理学会誌, vol.74, No.5, pp.325-329 (2019)
  22. レーザープラズマ加速器の進展とその可能性, 兒玉了祐, 細貝知直, 余語覚文,·西内満美子, 早川岳人, 原子核研究, 第65巻1号, pp.34-48 (2020).
  23.   IPAC20 Virtual Conference報告, 川瀬啓悟，柴田恭，田村文彦, 加速器, 17, pp.118-120 (2020).
  24. 共振器型自由電子レーザーによる数サイクル赤外光の発生と強光子場科学への展開, 羽島良一, 放射光, Vol.34, 191-199 (2021).

招待講演（2010～2022）

  1. Design of High-Power Free-Electron Lasers for EUV Lithography Applications, Ryoichi Hajima, 2014 International Workshop on EUV and Soft X-Ray Sources, November 3-6, 2014 Dublin, Ireland, Design of High-Power Free-Electron Lasers for EUV Lithography Applications[PDFファイル／2.67MB]
  2. Laser Compton scattering γ-ray experiments for supernova neutrino process
    T.Hayakawa, S. Miyamoto, T. Mochizuki, K. Horikawa, S. Amano, D. Li, K. Imasaki, Y. Izawa, K. Ogata, S. Chiba
    The 1st Conference on Laser Energetics - Laser Astrophysics -
    April 22 (Wed.) April 24 (Fri.), 2015, Pacifico Yokohama, Yokohama, Japan
  3. Neutron angular distribution from (γ, n) reactions with linear polarized laser Compton scattering γ-ray beam
    T. Hayakawa
    XIY International Seminar on Electromagnetic Interactions of Nuclei (EMIN – 2015), October 5-8, 2015, Photo-Nuclear Laboratory, Institute for Nuclear Research RAS, Moscow, Russia
  4. Review of experimental results from high brightness DC guns. Highlights and limitations in FEL applications
    N. Nishimori
    37th International Free Electron Laser Conference (FEL 2015), Aug. 23-28, 2015, Daejeong, Korea
  5. Status and Perspectives of Compton Sources,
    R. Hajima,
    Synchritron and Free electron laser Radiation: generation and application (SRF-2016),
    Jul. 4-7, 2016, Budker Institute of Nuclear Physics, Novosibirsk, Russia
  6. ERL based laser-Compton sources and applications,
    R. Hajima,
    Nuclear Photonics 2016, October 16-21, 2016, Monterey, USA
  7. Neutron Angular Distribution in (gamma, n) Reactions with Linearly Polarized Gamma-ray Beams,
    T. Hayakawa,
    Nuclear Photonics 2016, October 16-21, 2016, Monterey, USA
  8. Nuclear resonance fluorescence measurements with mono-energetic linearly , polarized photons,
    T. Shizuma,
    International workshop on Experimental and Theoretical Advances in Fission and Heavy Nuclei, Dec. 13, 2016, Tokai, Japan.
  9. Study of nuclear structure by measuring neutrons from photodisintegration reactions with linear polarized gamma-ray beam,
    T. Hayakawa,
    Conference on Laser Energy Science / Laser and Accelerator Neutron Sources and Applications 2017 (CLES/LANSA`17), Apr. 21, 2017, PACIFICO YOKOHAMA, Yokohama, Japan.
  10. Nulcear Astrophysics in laser deriven gamma-ray pulse,
    T. Hayakawa,
    Light driven Nuclear-Particle physics and Cosmology (LNPC’17), Apr. 21, 2017, PACIFICO YOKOHAMA, Yokohama, Japan.
  11. 超新星ニュートリノ元素合成と原子核統計モデル,　早川岳人,　東京工業大学 科学技術創生研究院 先導原子力研究所 研究交流・発表会, 2017年6月28日
  12. Neutrino-induced reactions with electron anti-neutrinos in supernova,　Tekehito Hayakawa,International workshop “Impact of Exotic Nuclear Structure on Explosive Nucleosynthesis”, Nov. 23-24, 2017, Beihang University, Beijing China.
  13. 核共鳴蛍光散乱データの現状,　静間俊行,　2017年度核データ研究会, 2017年11月16日, 東海
  14. CEP-Stabilized Few-cycle MIR-FELs for Driving High-Repetition-Rate (>10 MHz) Attosecond X-ray Sources Based on HHG,　R. Hajima, the 60th ICFA Advanced Beam Dynamics Workshop on Future Light Sources (FLS2018) , March 5-9, 2018, Shanghai, China.
  15. Delbruck Scattering using linearly polarized Laser Compton Scattering gamma-rays,　T. Hayakawa,　XV International Seminar on Electromagnetic Interactions of Nuclei (EMIN2018), October 08-11, 2018, Moscow, Russia.
  16. R. Hajima, "Application of infrared FEL oscillators for producing isolated attosecond X-ray pulses via high-harmonic generation in rare gases" ,The 39th International Free Electron Laser Conference (FEL-2019), Aug. 26-30, 2019, Hamburg, Germany.
  17. R. Hajima, "High-repetition-rate high-harmonic generation driven by infrared free-electron lasers" IEEE Photonic Conference (IPC-2019), Sep. 29-Oct.3, 2019, San Antonio, TX, USA.
  18. T. Hayakawa, “Vortex photon generation in magnetars”, Origin of Elements and Cosmic Evolution: From Big-Bang to Supernovae and Mergers, Nov. 27-29, Beijing, China 
  19. R. Hajima, " High-efficiency ultra-short pulses from infrared FEL oscillators for an attosecond X-ray source with high-harmonic generation ", 30th International Linear Accelerator Conference (LINAC-2020), Sept. 3, 2020, Virtual Conference.（招待講演）
  20. T. Hayakawa, Photon science using gamma-rays in future linear colliders, The 2021 International Workshop on Future Linear Colliders (LCWS2021), March. 15, 2021. https://indico.cern.ch/event/995633/page/21973-invited-talks
  21. 羽島、“共振器型自由電子レーザーによるアト秒X線パルスの発生をめざして”, 大阪大学フェローシップ「量子リーダー人材（QLEAR）」令和３年度研究者交流会, 2022年3月8日.
  22. 早川、”Half-life of a nuclear cosmochronometer 176Lu”, Origin of Elements and Cosmic Evolution: From Big-Bang to Supernovae and Mergers 2022, Jul. 20-22, 2022, Beihang University, Chaina (Online).
  23. 早川、“Accurate half-life determination of a nuclear cosmochronometer 176Lu”, the16th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG16), Oct. 25-28, 2022, Ha Noi, Vietnam.

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