TY - JOUR
T1 - Enhanced diffraction of MeV γ-rays by mosaic crystals
AU - Matsuba, Shunya
AU - Hayakawa, Takehito
AU - Shizuma, Toshiyuki
AU - Nishimori, Nobuyuki
AU - Nagai, Ryoji
AU - Sawamura, Masaru
AU - Angell, Christopher T.
AU - Fujiwara, Mamoru
AU - Hajima, Ryoichi
N1 - Funding Information:
We thank S. Nishino, H. Yoshitomi, M. Kowatari and other members of Facility of Radiation Standards. We also thank K. D. Liss, H. Asaoka, and Y. Toyoshima for their advice. This work was supported in part by a Grant-in-Aid for Scientific Research (15H03665) from the Japan Society for the Promotion of Science.
Publisher Copyright:
© 2016 The Japan Society of Applied Physics.
PY - 2016/11
Y1 - 2016/11
N2 - The diffraction of γ-rays by mosaic Si crystals with thicknesses of 20, 40, and 80mm and by a 2-mm-thick perfect Si crystal in a transmission Laue geometry was measured using a high-flux 60Co source with an intensity of 2.2 TBq. The measured diffraction intensities at 1.17 and 1.33MeV using 40- and 80-mm-thick mosaic crystals were enhanced by a factor of approximately 8.6 compared with those of the perfect Si crystal. The integrated reflectivity is well described in statistical dynamical theory by taking into account γ-ray absorption inside the crystals.
AB - The diffraction of γ-rays by mosaic Si crystals with thicknesses of 20, 40, and 80mm and by a 2-mm-thick perfect Si crystal in a transmission Laue geometry was measured using a high-flux 60Co source with an intensity of 2.2 TBq. The measured diffraction intensities at 1.17 and 1.33MeV using 40- and 80-mm-thick mosaic crystals were enhanced by a factor of approximately 8.6 compared with those of the perfect Si crystal. The integrated reflectivity is well described in statistical dynamical theory by taking into account γ-ray absorption inside the crystals.
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U2 - 10.7567/JJAP.55.112402
DO - 10.7567/JJAP.55.112402
M3 - Article
AN - SCOPUS:84994793948
SN - 0021-4922
VL - 55
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 11
M1 - 112402
ER -