de/dx AND E SEMICONDUCTOR DETECTOR SYSTEMS FOR 25-MEV He$sup 3$ AND ALPHA PARTICLES
Thin semiconductor detectors were constructed in which the space-charge region completely fills the volume of the detector. These detectors can be used to measure lowenergy alpha particles in the usual way and can also be used for high-energy particles to measure dE/dx, the fractional energy lost in traversing a given amount of matter. A combination detector which measures both dE/dx and the total energy, E, of a particle is described, and performance with 21- and 25- Mev He/sup 3/ and alpha particles is shown. This combination allows various mass particles produced in a highenergy reaction to be completely separated. The manner of construction for these thin (0.002 in.) counters is descibed, and thy advantages in terms of required size, signal-to noise ratio, and rise time are discussed. Enengy resolution characteristics for NaI scintillation detectors and semiconductor detectors are compared for high-energy He/sup 3/ and alpha particles. (auth)
- Research Organization:
- Los Alamos Scientific Lab., N. Mex.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-009090
- OSTI ID:
- 4100178
- Journal Information:
- IRE Trans. Nuclear Sci., Journal Name: IRE Trans. Nuclear Sci. Vol. Vol: NS-8: No. 1
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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