Abstract
Multicomponent bromine, iodine, and uranium beams from the Oak Ridge Tandem accelerator were used to measure the pulse height response of silicon surface-barrier detectors in the ion energy range 20 MeV to 100 MeV. The detectors were found to have pulse height defects of 3.0±0.5 MeV, 4.0±0.5 MeV, and 6.3±1.0 MeV corresponding to bromine, iodine, and uranium ions, respectively. An energy dependent correction larger than the pulse height defect is needed for iodine and uramium response data over most of the energy range studied. Certain previously published theoretical explanations which attribute detector non-linearities to atomic scattering at the end of the ion's range are in reasonable agreement with these results.
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