Determination of Thermal Neutron Capture Cross Sections using Cold Neutron Beams

Journal Article · Tue May 24 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1945114· OSTI ID:20722668

Belgya, T; Molnar, G L; Revay, Zs; Weil, J L ^[1]

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1. Institute of Isotopes, Chemical Research Centre, HAS H-1525 Budapest (Hungary)

We report about our recently upgraded PGAA-NIPS facilities, which use a guided cold neutron beam produced by the 10 MW Budapest Research Reactor. The two facilities provide excellent means for determining partial gamma ray cross sections for products produced in the sample by neutron capture reactions. Both stations are equipped with HPGe detectors to detect the gamma rays coming from the excited nuclei of the samples. We present our methodology developed for the determination of thermal capture cross section of various target isotopes including the radioactive 99Tc, 129I nuclei and of the partial gamma ray cross sections of 235U and 238U nuclei. The chopped beam option provides a good opportunity to study short-lived products. An overview of our recent capture cross section experiments is also given.

• OSTI ID: 20722668
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 769; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CAPTURE
COLD NEUTRONS
CROSS SECTIONS
GAMMA DETECTION
GAMMA RADIATION
HIGH-PURITY GE DETECTORS
IODINE
IODINE 129
NEUTRON BEAMS
NEUTRON REACTIONS
RESEARCH REACTORS
TECHNETIUM
TECHNETIUM 99
THERMAL NEUTRONS
URANIUM
URANIUM 235
URANIUM 238