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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 542995.0, MPI für Physik / MPI für Physik
Development status of High-QE HPDs with 18-mm GaAsP photocathode for IACTs
Authors:Hayashida, M.; Ninkovic, J.; Hose, J.; Hsu, C. C.; Mirzoyan, R.; Teshima, M.
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Nuclear Instruments and Methods in Physics Research Section A
Journal Abbrev.:Nucl.Instrum.Meth.A
Issue / Number:572
Start Page:456
End Page:458
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:A new type of Hybrid PhotoDetectors (HPDs) with an 18-mm-diameter GaAsP photocathode was developed in order to lower the
energy threshold of the MAGIC-II Project. The Quantum Efficiency (QE) reaches more than 50% at around 500 nm and is enhanced in
the UV region by the wavelength shifting technique. The total light conversion efficiency could be practically improved by about a factor
2 compared to the conventional PhotoMultiplier Tubes (PMT). Photocathode ageing measurements indicate that GaAsP photocathode
have a sufficiently long lifetime for being used in the MAGIC telescope imaging camera.
Classification / Thesaurus:MAGIC
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2007-38
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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