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A new detector system for the measurement of high-energy prompt γ -rays for low-energy neutron induced fission
- Source :
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2018, 906, pp.88-96. ⟨10.1016/j.nima.2018.07.055⟩
- Publication Year :
- 2018
- Publisher :
- HAL CCSD, 2018.
-
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 235 U 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.
- Subjects :
- Physics
Nuclear and High Energy Physics
010308 nuclear & particles physics
Fission
Astrophysics::High Energy Astrophysical Phenomena
Detector
Nuclear Theory
Scintillator
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
7. Clean energy
01 natural sciences
Neutron temperature
Spectral line
Nuclear physics
Dipole
0103 physical sciences
Neutron
010306 general physics
Nuclear Experiment
Instrumentation
Beam (structure)
Subjects
Details
- Language :
- English
- ISSN :
- 01689002
- Database :
- OpenAIRE
- Journal :
- Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Elsevier, 2018, 906, pp.88-96. ⟨10.1016/j.nima.2018.07.055⟩
- Accession number :
- edsair.doi.dedup.....1897bdb6587b3d783b1e77257c53a409