Contribution to a conference proceedings

FZJ-2020-02840

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Measurement of gamma and neutron ROT-effects in 0.3 eV resonance of 235U at a hot source of polarized neutrons

Kopatch (Corresponding author)ОИЯИ* ; Novitsky ; Ahmadov ; Gagarsky ; Berikov ; Zhumadilov ; Danilyan ; Hutanu, V.MLZ*RWTH* ; Klenke, J.MLZ*TUM* ; Masalovich, S.MLZ*TUM*

2020

Please use a persistent id in citations: http://hdl.handle.net/2128/25652

Abstract: The present paper describes the first attempt to get "clean" data by performing the measurement of gamma and neutron ROT-asymmetries in an isolated resonance of 235U at the POLI instrument of the FRM2 reactor in Garching. The measurement was performed in 0.3 eV resonance of 235U at a hot source of polarized neutrons. Thin low-pressure multiwire proportional counters (LPMWPC) were used as fission fragment detectors, being placed on two sides of 235U target at a distance of ~3 cm (start detector) and ~11 cm (stop detector). In order to register gamma rays and neutron, the fission chamber was surrounded by 8 plastic (for both gamma rays and neutron) and 4 NaI scintillation detectors (for gamma rays) placed at different angles with respect to the fission detector. The statistic was accumulated during 30 days. The analysis of collected events showed that gamma and neutron asymmetries in 0.3 eVresonance energy of 235U were definitely smaller than that in the cold neutron induced fission.

Keyword(s): Nuclei and Particles (1st) ; Basic research (1st) ; Nuclear Physics (2nd)

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Contributing Institute(s):

1. JCNS-FRM-II (JCNS-FRM-II)
2. Heinz Maier-Leibnitz Zentrum (MLZ)

Research Program(s):

1. 6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623) (POF3-623)
2. 6G15 - FRM II / MLZ (POF3-6G15) (POF3-6G15)

Experiment(s):

1. POLI: Polarized hot neutron diffractometer (SR9a)

Appears in the scientific report 2020

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Database coverage:

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