The Stilbene Scintillation Crystal as a Spectrometer for Continuous Fast-Neutron Spectra
A method is described for measuring neutron spectra at energies of 1 to 10 Mev. The pulse-height spectrum of scintillations produced in a stilbene crystal by recoil protons originating in the crystal is analyzed to yield the incident neutron energy distribution. Insensitivity to gamma rays and electrons is achieved by utilizing differences in the pulse shapes of light pulses produced by electrons and protons. The spectrometer is useful for both group and continuous spectra and has been tested by measurement of the spectra from a Pu-Be neutron source and from the spontaneous fission of Cf/sup 252/. Both measurements are consistent with previous data. The Pu-Be data definitely confirm a peak at 9.7 Mev that was suggested by previous data. (auth)
- Research Organization:
- Yale Univ., New Haven
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-006169
- OSTI ID:
- 4076784
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 10 Vol. 31; ISSN 0034-6748; ISSN RSINAK
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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