Die Energieverteilung der Neutronen aus einer Po-α-Be-Quelle (in German)
Journal Article
·
· European Physical Journal. A
The neutrons from a Po- alpha -Be source were detected via the recoil protons in a stilbene scintillator. The pulseheight spectrum of the scintillations produced in the stilbene crystal by the recoil protons was analyzed to yield the incident neutron energy distribution. The gamma background was eliminated through pulse shape discrimination. Separately the spectrum of neutrons coincident with gamma rays, i.e., of neutrons from the Be/ sup 9/( alpha ,n)C/sup 12*/ reaction, was determined. The resulting spectra are compared to previous measurements. The structure of the spectra is not compatible with an isotropic angular dstribution of the neutrons relative to the alpha -direction. Furthermore it could be shown that the fraction of reactions leading to the 7.65 Mev state of C/sup 12/ is only about 10/sup -3/. (auth)
- Research Organization:
- Universitat, Heidelberg
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-17-029570
- OSTI ID:
- 4712031
- Journal Information:
- European Physical Journal. A, Journal Name: European Physical Journal. A Journal Issue: 2 Vol. 174; ISSN 1434-6001
- Publisher:
- Springer
- Country of Publication:
- Country unknown/Code not available
- Language:
- German
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