Title :
Energy Resolution Contributions in Reach-Through Avalanche Photodiodes
Author :
Gouvea, A.L. ; Fernandes, L.M.P.
Author_Institution :
Instrum. Center, Univ. of Coimbra, Coimbra, Portugal
Abstract :
Avalanche photodiodes (APD) are used in the muonic helium Lamb shift experiment for detection of 8 keV X-rays. Reach-through APDs from Hamamatsu Photonics have been investigated for X-ray detection as alternative to conventional APDs. In order to evaluate the different contributions to the energy resolution obtained in a reach-through APD, its response to both 8 keV X-rays and visible light pulses was investigated. The intrinsic resolution was estimated by further measurements of the electronic noise contribution and the gain non-uniformity was assessed. The excess noise factor was determined. Results at different temperatures are presented.
Keywords :
avalanche photodiodes; nuclear electronics; semiconductor device noise; Hamamatsu Photonics; X-ray detection; X-rays pulse; electronic noise contribution; energy resolution; energy resolution contributions; excess noise factor; intrinsic resolution; muonic helium Lamb shift experiment; reach-through APDs; reach-through Avalanche photodiodes; visible light pulse; Avalanche photodiodes; Energy resolution; Noise; Silicon; Temperature; X-ray detection; Avalanche photodiodes; X-ray detectors; electronic noise; energy resolution; excess noise factor; gain non-uniformity; intrinsic resolution; light detection; reach-through avalanche photodiodes;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2014.2356854
