On the size of the secondary electron cloud in crystals irradiated by hard X-ray photons

Alexei N. Grum-Grzhimailo; Tatiana Pikuz; Anatoly Faenov; Takeshi Matsuoka; Norimasa Ozaki; Bruno Albertazzi; Sergei Pikuz; Yuichi Inubushi; Makina Yabashi; Kensuke Tono; Hirokatsu Yumoto; Haruhiko Ohashi; Tetsuya Ishikawa; Ryosuke Kodama

doi:10.1140/epjd/e2017-70767-8

2022 Impact factor 1.8

Atomic, Molecular, Optical and Plasma Physics

Topical Issue: Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces

Eur. Phys. J. D (2017) 71: 69
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^*

Alexei N. Grum-Grzhimailo¹^a, Tatiana Pikuz²^,3^,4^b, Anatoly Faenov⁴^,5, Takeshi Matsuoka⁵, Norimasa Ozaki²^,3, Bruno Albertazzi²^,6, Sergei Pikuz⁴^,7, Yuichi Inubushi⁸^,9, Makina Yabashi⁹, Kensuke Tono⁸^,9, Hirokatsu Yumoto⁸, Haruhiko Ohashi⁸^,9, Tetsuya Ishikawa⁹ and Ryosuke Kodama²^,3^,5

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

Abstract

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.

Contribution to the Topical Issue “Many Particle Spectroscopy of Atoms, Molecules, Clusters and Surfaces”, edited by A.N. Grum-Grzhimailo, E.V. Gryzlova, Yu V. Popov, and A.V. Solov’yov.

© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2017