Geard-Ring and Charge Collection Efficiency of GaAs Detector
The study present the results of an experimental investigation focused on the inflence of guard-ring on detector charge collection. The tested detector is based on semi-insulating (SI) GaAs substrate with a base thinkness of 250 um, where the depletion region is created by a PN-junction. The experim...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
VSB-Technical University of Ostrava
2005-01-01
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| Series: | Advances in Electrical and Electronic Engineering |
| Subjects: | |
| Online Access: | http://advances.utc.sk/index.php/AEEE/article/view/492 |
| Summary: | The study present the results of an experimental investigation focused on the inflence of guard-ring on detector charge collection. The tested detector is based on semi-insulating (SI) GaAs substrate with a base thinkness of 250 um, where the depletion region is created by a PN-junction. The experiments were executed in vacuum using the 241 Am source emmitting 5,48 MeV alpha particles. Obtained results show noticeable increase of charges collected with higher collection efficiency in spectrum, when quard-ring was read out together with detector electrode.<br /> |
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| ISSN: | 1336-1376 1804-3119 |