FAST NEUTRON SPECTROMETER
Abstract
An improved proton recoil spectrometer for determining the energy spectrum of a fast neutron beam is described. Instead of discriminating against and thereby"throwing away" the many recoil protons other than those traveling parallel to the neutron beam axis as do conventional spectrometers, this device utilizes protons scattered over a very wide solid angle. An ovoidal gas-filled recoil chamber is coated on the inside with a scintillator. The ovoidal shape of the sensitive portion of the wall defining the chamber conforms to the envelope of the range of the proton recoils from the radiator disposed within the chamber. A photomultiplier monitors the output of the scintillator, and a counter counts the pulses caused by protons of energy just sufficient to reach the scintillator.
- Inventors:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4182144
- Patent Number(s):
- 2900516
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01T - MEASUREMENT OF NUCLEAR OR X-RADIATION
- NSA Number:
- NSA-14-006486
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-60
- Country of Publication:
- United States
- Language:
- English
- Subject:
- ENGINEERING AND EQUIPMENT; COATING; COUNTERS; ENERGY; FAST NEUTRONS; GASES; NEUTRON BEAMS; NEUTRON SPECTROMETERS; PHOSPHORS; PHOTOMULTIPLIERS; PULSES; QUANTITATIVE ANALYSIS; RECOILS; SCATTERING; SCINTILLATIONS; SENSITIVITY; SPECTRA; SURFACES; VESSELS
Citation Formats
Davis, F J, Hurst, G S, and Reinhardt, P W. FAST NEUTRON SPECTROMETER. United States: N. p., 1959.
Web.
Davis, F J, Hurst, G S, & Reinhardt, P W. FAST NEUTRON SPECTROMETER. United States.
Davis, F J, Hurst, G S, and Reinhardt, P W. Tue .
"FAST NEUTRON SPECTROMETER". United States.
@article{osti_4182144,
title = {FAST NEUTRON SPECTROMETER},
author = {Davis, F J and Hurst, G S and Reinhardt, P W},
abstractNote = {An improved proton recoil spectrometer for determining the energy spectrum of a fast neutron beam is described. Instead of discriminating against and thereby"throwing away" the many recoil protons other than those traveling parallel to the neutron beam axis as do conventional spectrometers, this device utilizes protons scattered over a very wide solid angle. An ovoidal gas-filled recoil chamber is coated on the inside with a scintillator. The ovoidal shape of the sensitive portion of the wall defining the chamber conforms to the envelope of the range of the proton recoils from the radiator disposed within the chamber. A photomultiplier monitors the output of the scintillator, and a counter counts the pulses caused by protons of energy just sufficient to reach the scintillator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1959},
month = {8}
}