PHOTOPROTON SCINTILLATION SPECTROMETER
An apparatus is described for the measurement of the energy and angular distribution of protons from ( gamma , p) reactions. A method is presented for obtaining energy spread of 3% for protons of 3 to 15 Mev with a Nal scintillator of 1-in. diam aperture. Energy calibration of the detector with monoenergetic protons gives am energy vs pulse-height line having an intercept of 0.46 plus or minus 0.10 Mev. The ratio of alpha particle to proton energy for equal pulse heights is found to be 1.93 plus or minus 0.04 for 4.48-Mev alpha particles. A CsI scintillator, similarly mounted, yields an intercept of -- 0.17 plus or minus 0.15 Mev and an alpha -proton energy ratio of 1.66 plus or minus 0.07 for 5.3-Mev alpha particles. A modification of the phoswich to provide discrimination against electrons is described. (auth)
- Research Organization:
- Univ. of Pennsylvania, Philadelphia
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-12-011627
- OSTI ID:
- 4302946
- Journal Information:
- Rev. Sci. Inst., Journal Name: Rev. Sci. Inst. Vol. Vol: i9
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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