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A new detector system for the measurement of high-energy prompt [formula omitted]-rays for low-energy neutron induced fission.
- Source :
-
Nuclear Instruments & Methods in Physics Research Section A . Oct2018, Vol. 906, p88-96. 9p. - Publication Year :
- 2018
-
Abstract
- Abstract We have developed a new setup to measure prompt fission γ -ray spectra in neutron induced fission up to energies sufficient to reveal the structure associated with giant dipole resonances of fission fragments. The setup consists of multi-wire proportional counters, to detect both fission fragments in coincidence, and two large volume (101.6 mm in diameter and 127.0 mm in length) LaBr 3 (Ce) scintillators, to measure the γ rays. The setup was used to obtain the prompt fission γ -ray spectrum for thermal neutron induced fission of 235U at the PF1B cold-neutron beam facility of the Institut Laue-Langevin, Grenoble, France. We have successfully measured the γ -ray spectrum up to energies of about 20 MeV, what extends the currently known γ -ray spectrum limit to higher energies by approximately a factor of two. [ABSTRACT FROM AUTHOR]
- Subjects :
- *DETECTORS
*NEUTRONS
*SCINTILLATORS
*X-ray imaging
*DIAMETER
Subjects
Details
- Language :
- English
- ISSN :
- 01689002
- Volume :
- 906
- Database :
- Academic Search Index
- Journal :
- Nuclear Instruments & Methods in Physics Research Section A
- Publication Type :
- Academic Journal
- Accession number :
- 131774009
- Full Text :
- https://doi.org/10.1016/j.nima.2018.07.055