The NBS 14 MeV absolute neutron beam facility

Conference · Wed Apr 01 04:00:00 EST 1981 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5481021

Duvall, K C; Wasson, O A

A 14 MeV absolute neutron beam has been established at the NBS 3 MV positive-ion Van de Graaff Accelerator Laboratory. The T(d,n)..cap alpha.. reaction is used for the production of the 14.1 MeV neutron flux with a source strength of 10/sup 8/ n/sec. The neutron flux is absolutely determined by the measurement of the associated alpha particle rate in a silicon surface barrier detector positioned at 84 degrees with respect to the beam axis. The facility may be used to measure the absolute response of active neutron monitoring devices with high accuracy. The neutron background contributions may be eliminated in the calibration measurements by utilizing the coincidence between the device and the solid state alpha detector. This method allows a neutron flux in a cone of 2 degree half angle to be placed at 90 degrees with respect to the beam axis.

• Research Organization: National Bureau of Standards, Washington, DC 20234
• OSTI ID: 5481021
• Report Number(s): CONF-801111-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-28:2
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATORS
ACCURACY
BARYONS
BEAMS
CALIBRATION
CHARGED-PARTICLE REACTIONS
DEUTERON REACTIONS
ELECTROSTATIC ACCELERATORS
ELEMENTARY PARTICLES
ENERGY RANGE
EVEN-EVEN NUCLEI
FERMIONS
HADRONS
HELIUM 4
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 10-100
NATIONAL ORGANIZATIONS
NEUTRON BEAMS
NEUTRON FLUX
NEUTRONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON BEAMS
NUCLEONS
PARTICLE BEAMS
RADIATION DETECTORS
RADIATION FLUX
SEMICONDUCTOR DETECTORS
SI SEMICONDUCTOR DETECTORS
STABLE ISOTOPES
TARGETS
TRITIUM TARGET
US DOC
US NBS
US ORGANIZATIONS
VAN DE GRAAFF ACCELERATORS