Detection of Minimum-Ionizing Particles and Nuclear Counter Effect with Pure BGO and BSO Crystals with Photodiode Read-out
K. Ueno, S. K. Sahu, K. C. Peng, W. S. Hou, C. H. Wang
Abstract
Long BGO (Bismuth Germanate) and BSO (Bismuth Silicate) crystals coupled with silicon photodiodes have been used to detect minimum-ionizing particles(MIP). With a low noise amplifier customized for this purpose, the crystals can detect MIPs with an excellent signal-to-noise ratio. The NCE(Nuclear Counter Effect is also clearly observed and measured. Effect of full and partial wrapping of a reflector around the crystal on light collection is also studied.
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