Scintillation detector efficiencies for neutrons in the energy region above 20 MeV
The computer program SCINFUL (for SCINtillator FUL1 response) is a program designed to provide a calculated complete pulse-height response anticipated for neutrons being detected by either an NE-213 (liquid) scintillator or an NE-110 (solid) scintillator in the shape of a right circular cylinder. The point neutron source may be placed at any location with respect to the detector, even inside of it. The neutron source may be monoenergetic, or Maxwellian distributed, or distributed between chosen lower and upper bounds. The calculational method uses Monte Carlo techniques, and it is relativistically correct. Extensive comparisons with a variety of experimental data have been made. There is generally overall good agreement (less than 10% differences) of results for SCINFUL calculations with measured integral detector efficiencies for the design incident neutron energy range of 0.1 to 80 MeV. Calculations of differential detector responses, i.e. yield versus response pulse height, are generally within about 5% on the average for incident neutron energies between 16 and 50 MeV and for the upper 70% of the response pulse height. For incident neutron energies between 50 and 80 MeV, the calculated shape of the response agrees with measurements, but the calculations tend to underpredict the absolute values of the measured responses. Extension of the program to compute responses for incident neutron energies greater than 80 MeV will require new experimental data on neutron interactions with carbon. 32 refs., 6 figs., 2 tabs.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5858965
- Report Number(s):
- CONF-9105190-1; ON: DE91012544
- Resource Relation:
- Conference: Specialists' meeting on neutron cross section standards for the energy region above 20 MeV, Uppsala (Sweden), 21-23 May 1991
- Country of Publication:
- United States
- Language:
- English
Similar Records
SCINFUL: A Monte Carlo based computer program to determine a scintillator full energy response to neutron detection for E/sub n/ between 0. 1 and 80 MeV: User's manual and FORTRAN program listing
Neutron spectrum from a uramium-235 sphere bombarded by 14-MeV neutrons
Related Subjects
LIQUID SCINTILLATION DETECTORS
NEUTRON DETECTION
SOLID SCINTILLATION DETECTORS
EFFICIENCY
EXPERIMENTAL DATA
MONTE CARLO METHOD
NEUTRON SOURCES
S CODES
SCATTERING
COMPUTER CODES
DATA
DETECTION
INFORMATION
MEASURING INSTRUMENTS
NUMERICAL DATA
PARTICLE SOURCES
RADIATION DETECTION
RADIATION DETECTORS
RADIATION SOURCES
SCINTILLATION COUNTERS
440103* - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation