Abstract
Radiation damage of the polymer CR-39 (allyl diglycol carbonate), due to neutrons and alpha-particles, and of Kapton due to He +, Ar +, and Xe + ions is examined by electron spin resonance (ESR) and track-etch (chemical) methods. Characteristic electron spin resonance signals depend upon fluence, and are subject to annealing. Particle track-etch rates vary with annealing temperature and time. It is shown for the first time that there is a clear correlation between the ESR signal and the corresponding track registration and retention properties of a polymer, regarded as a detector. Strong evidence is also adduced for the separating-out of nuclear and electronic stopping. Finally, the dependence of radiation damage as a function of fluence (dose) and annealing temperature is studied by using scanning electron microscopy (SEM) and interactive image analysis (INTIMAN).
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