Neutron spectra as a function of angle at two meters from the Little Boy assembly

Conference · Mon Jul 02 00:00:00 EDT 1984

OSTI ID:6544582

Griffith, R V; Huntzinger, C J; Thorngate, J H

Measurements of neutron spectra produced by the Los Alamos National Laboratory (LANL) Little Boy replica assembly (Comet) were made with a combined multisphere and liquid scintillator system, that has been widely used at the Lawrence Livermore National Laboratory. The combined system was used for measurements at the side (90/sup 0/) and nose (0/sup 0/) of the assembly; additional measurements were made at 45/sup 0/ using only the liquid scintillator. Data were obtained at two meters from the center of the reactive region of the assembly, with good agreement between the multisphere and scintillator results. Comparison with liquid scintillator measurements performed by experimenters from the Canadian Defence Research Establishment, Ottawa (DREO) and calculations from LANL depended on the specific angle, obtaining the best agreement at 90/sup 0/. 32 references, 11 figures, 4 tables.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6544582
• Report Number(s): UCRL-90178; CONF-840627-10; ON: DE84017033
• Resource Relation: Conference: 29. annual meeting of the Health Physics Society, New Orleans, LA, USA, 3 Jun 1984; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
61 RADIATION PROTECTION AND DOSIMETRY
NUCLEAR WEAPONS
NEUTRON SPECTRA
BONNER SPHERE DETECTORS
EXPERIMENTAL DATA
HIROSHIMA
INCIDENCE ANGLE
LIQUID SCINTILLATION DETECTORS
ASIA
DATA
INFORMATION
JAPAN
MEASURING INSTRUMENTS
MODERATING DETECTORS
NEUTRON DETECTORS
NUMERICAL DATA
RADIATION DETECTORS
SCINTILLATION COUNTERS
SPECTRA
WEAPONS
450202* - Explosions & Explosives- Nuclear- Weaponry- (-1989)
655003 - Medical Physics- Dosimetry