Response of Anthracene and Stilbene to Low-Energy Protons and X-Rays

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Abstract
The scintillation response of anthracene and stilbene to low-energy protons (170-570 kev) and x-rays (10-40 kev) has been investigated. In agreement with previous work at higher proton energies, the proton pulse height vs energy curves are quite nonlinear. The x-ray data are essentially linear down to 10 kev. This result is contrary to the reported response of these crystals to electron bombardment, but seems to be in agreement with the theory proposed by Birks. With the aid of this theory, proton response curves are obtained for stilbene and anthracene over an extended energy range.