Journal Article

FZJ-2021-04967

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effect of rotation in the γ -ray emission from 60 meV polarized neutron-induced fission of the U 235 isotope

Berikov, D. (Corresponding author) ; Ahmadov, G. (Corresponding author) ; Kopatch, Y. ; Gagarski, A. ; Novitsky, V. ; Deng, H. ; Danilyan, G. ; Masalovich, S. ; Salhi, Z.FZJ* ; Babcock, E.FZJ* ; Klenke, J. ; Hutanu, V.FZJ*

2021
Inst. Woodbury, NY

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Please use a persistent id in citations: http://hdl.handle.net/2128/29572  doi:10.1103/PhysRevC.104.024607

Abstract: In the paper we present the results obtained for the effect of rotation (ROT) in the angular distribution of prompt γ rays from the fission of 235U induced by monochromatic polarized “warm” neutrons (En = 60 meV). The polarization vector direction is determined at the target position in order to correctly determine the sign of the measured effect. The asymmetry parameter was found to be equal to Rγ=−(17.3±2.8)×10−5. Moreover, the rotation angle of the fission axis was determined to be equal to 0.069°±0.008° taking into account the fit results of the angular distribution of the prompt fission γ rays. The obtained value and sign of the ROT effect are consistent with the results of the ROT effect obtained for cold neutrons. We describe the experiment, methodology of sign determination, and implications of the results

Keyword(s): Energy (1st) ; Nuclear Physics (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Streumethoden (JCNS-2)
3. JARA-FIT (JARA-FIT)
4. JCNS-4 (JCNS-4)
5. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ) (POF4-6G4) (POF4-6G4)
2. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)

Experiment(s):

1. POLI: Polarized hot neutron diffractometer (SR9a)

Appears in the scientific report 2021

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

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