Journal Article

GSI-2018-00859

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Dispersive refraction of different light to heavy materials at MeV γ -ray energies

Günther, M. (Corresponding author)GSI* ; Volotka, A. V.GSI* ; Jentschel, M. ; Fritzsche, S.GSI* ; Stöhlker, T.GSI* ; Thirolf, P. G. ; Zepf, M.GSI*

2018
Inst. Woodbury, NY

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Please use a persistent id in citations: doi:10.1103/PhysRevA.97.063843

Abstract: The dispersive behavior of materials with atomic charge numbers varying from Z=4 (beryllium, Be) to Z=82 (lead, Pb) was investigated experimentally and theoretically at γ-ray energies up to 2 MeV. The experiment was performed at the double-crystal γ spectrometer GAMS6 of the Institut Laue-Langevin in Grenoble. The experimental results were compared with theoretical calculations which account for all major elastic processes involved. Overall, we found a good agreement between theory and experiment. We find that, for the development of refractive optics at γ-ray energies beyond those currently in use, high-Z materials become increasingly attractive compared to the beryllium lens-stacks used at x-ray energies.

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Contributing Institute(s):

1. Atomphysik (ATP)
2. HI Jena (HIJ)

Research Program(s):

1. 6211 - Extreme States of Matter: From Cold Ions to Hot Plasmas (POF3-621) (POF3-621)

Appears in the scientific report 2018

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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