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A two-parameter scintillation spectrometer system for measurement of secondary proton, deuteron, and triton distributions from materials under 558-MeV-proton irradiationA two-parameter scintillation spectrometer system developed and used to obtain proton, deuteron, and triton double differential cross sections from materials under 558-MeV-proton irradiation is described. The system measures both the time of flight of secondary particles over a 488-cm flight path and the energy deposited in a scintillator, 12.7 cm in diameter and 30.48 cm long. The time resolution of the system is 0.39 nsec. The calculated energy resolution based on this time resolution varies with energy from 1.6 precent to 7.75 percent for 50- and 558-MeV protons. Various systematic and statistical errors are evaluated, and the double differential cross sections for secondary proton and deutron production at 20 deg from a 2.35 g/sq cm thick beryllium target are shown as an example of the results obtainable with this system. The uncertainly in the cross sections for secondary protons varies with particle energy from approximately + or - 9 percent at 50 MeV to approximately + or - 11 percent at 558 MeV.
Document ID
19750024819
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Beck, S. M. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1975
Subject Category
Nuclear And High-Energy Physics
Report/Patent Number
NASA-TN-D-7925
L-9941
Accession Number
75N32892
Funding Number(s)
PROJECT: RTOP 506-16-35-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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