The NBS 14 MeV absolute neutron beam facility. Final report
Technical Report
·
OSTI ID:5456226
A 14 MeV absolute neutron beam has been established at the NBS 3 MV positive-ion Van de Graaff Accelerator Laboratory. 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 using 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 (USA)
- OSTI ID:
- 5456226
- Report Number(s):
- PB-82-100181
- Country of Publication:
- United States
- Language:
- English
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