Calculated and measured efficiency of a man-portable /sup 3/He neutron detector

Conference · Wed Sep 29 00:00:00 EDT 1976

OSTI ID:7334174

O'Dell, A A

A small man-portable neutron detector was constructed using 18 /sup 3/He proportional counters arranged in three layers within a polyethylene moderator. Each counter is 25 mm in diameter by 340 mm long (sensitive length) and is filled with highly-purified /sup 3/He to a pressure of 400 kPa (4 atm). Efficiency measurements were made using a /sup 252/Cf neutron source. Detailed calculations of the detector efficiency were done using the TART Monte Carlo transport code. Calculations and measurements were compared for several source/detector configurations.

• Research Organization: California Univ., Livermore (USA). Lawrence Livermore Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 7334174
• Report Number(s): UCRL-78205; CONF-761006-5; TRN: 77-000375
• Resource Relation: Conference: Nuclear science, scintillation and semiconductor counter symposium, New Orleans, LA, USA, 20 Oct 1976
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
HE-3 COUNTERS
EFFICIENCY
NEUTRON DETECTION
COMPUTER CALCULATIONS
MONTE CARLO METHOD
POLYETHYLENES
MEASURING INSTRUMENTS
NEUTRON DETECTORS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYOLEFINS
PROPORTIONAL COUNTERS
RADIATION DETECTION
RADIATION DETECTORS
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments