High quantum efficiency S-20 photocathodes in photon counting detectors
| Autor: | Emilie Kernen, Jeff DeFazio, S. Duarte Pinto, Dmitry A. Orlov, Rene Glazenborg |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Photomultiplier Physics - Instrumentation and Detectors Ideal (set theory) Series (mathematics) Physics::Instrumentation and Detectors 010308 nuclear & particles physics business.industry Dark count rate Detector FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) medicine.disease_cause 01 natural sciences Photon counting 010309 optics Optics 0103 physical sciences medicine Quantum efficiency business Instrumentation Mathematical Physics Ultraviolet |
| DOI: | 10.48550/arxiv.1603.04493 |
| Popis: | Based on conventional S-20 processes, a new series of high quantum efficiency (QE) photocathodes has been developed that can be specifically tuned for use in the ultraviolet, blue or green regions of the spectrum. The QE values exceed 30% at maximum response, and the dark count rate is found to be as low as 30 Hz/cm$^2$ at room temperature. This combination of properties along with a fast temporal response makes these photocathodes ideal for application in photon counting detectors, which is illustrated with an MCP photomultiplier tube for single and multi-photoelectron detection. Comment: Submitted to the proceedings of the DIRC2015 workshop |
| Databáze: | OpenAIRE |
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