https://doi.org/10.1140/epjd/e2017-70767-8
Regular Article
On the size of the secondary electron cloud in crystals irradiated by hard X-ray photons*
1 Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia
2 Photon Pioneers Center, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Osaka, Japan
3 Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, 565-0871 Osaka, Japan
4 Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia
5 Institute for Academic Initiatives, Osaka University, 2–8 Yamadaoka, Suita, 565-0871 Osaka, Japan
6 LULI - CNRS, École Polytechnique, CEA, Université Paris-Saclay, UPMC Univ Paris 06: Sorbonne Universités, 91128 Palaiseau Cedex, France
7 National Research Nuclear University (MEPhI), 115409 Moscow, Russia
8 Japan Synchrotron Radiation Research Institute, Sayo, 679-5198 Hyogo, Japan
9 RIKEN Spring-8 Center, Sayo, 679-5148 Hyogo, Japan
a
e-mail: algrgr1492@yahoo.com
b
e-mail: tatiana.pikuz@eie.eng.osaka-u.ac.jp
Received: 7 December 2016
Received in final form: 26 January 2017
Published online: 23 March 2017
A simple theoretical recipe is proposed to estimate the size of the secondary electron cloud, generated in matter by incoming hard X-ray photons. An exclusive response of the LiF crystal to deposited X-ray doses by proportional generation of secondary electrons, which cause creation of color centers density inside the crystal, provides a unique possibility to validate the theoretical predictions for the size of the electron cloud with submicron resolution. The radius of the electron cloud measured for 10.1 keV photons is in agreement with the theoretical predictions.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2017