Preliminary analyses of SWINPC beryllium neutron multiplication integral experiments

Journal Article · Wed May 01 04:00:00 EDT 1991 · Fusion Technology; (United States)

OSTI ID:5932089

Liu, L Y ^[1]; Cheng, E T ^[2]

---

1. Inst. of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing (CN)
2. TSI Research, Solana Beach, CA (US)

This paper reports on neutron multiplication experiments on beryllium. The experiment is briefly described. Preliminary analyses of the experiment are performed using ENDF/B-IV, B-V, and B-VI data. Several problems related to the experiment are discussed. The following conclusions regarding the beryllium integral experiment are reached: Beryllium multiplication is sensitive to the {sup 9}Be(n,2n) secondary spectrum. The Li-glass detector, BF{sub 3} counter, and {sup 235}U fission chamber all give good accuracy in measuring the {sup 1}H(n,{gamma}) reaction rate. Only a 2% difference is found in beryllium multiplications for a bare beryllium system and for a beryllium/polyethylene + water system. The beam duct has little influence (merely 1%) on beryllium multiplication. Preference is given to small detectors to decrease detector perturbation. The calculations uncertainty is expected to be {lt}1%.

• OSTI ID: 5932089
• Journal Information: Fusion Technology; (United States), Journal Name: Fusion Technology; (United States) Vol. 19:3; ISSN 0748-1896; ISSN FUSTE
• Country of Publication: United States
• Language: English

Related Subjects

663430* -- Nucleon-Induced Reactions & Scattering-- (1992-)
663520 -- Nuclear Mass Ranges-- A=6-19-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
BERYLLIUM 9 TARGET
ELEMENTARY PARTICLES
EXPERIMENTAL REACTORS
FERMIONS
FISSION NEUTRONS
HADRON REACTIONS
HADRONS
MEASURING INSTRUMENTS
MULTIPLICATION FACTORS
MULTIPLICITY
NEUTRON DETECTORS
NEUTRON REACTIONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
NUCLEONS
RADIATION DETECTORS
REACTORS
RESEARCH AND TEST REACTORS
TARGETS