Measurements of the quantum efficiency of CsI photocathodes in a multiwire proportional chamber

Križan, P.; Cindro, M.; Cindro, V.; Korpar, S.; Omahen, Gregor; Stanovnik, A.; Starič, M.

doi:10.1016/0168-9002(95)00471-8

Cited by 10 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hydrolysis reaction causes the caesium and iodine atoms to dissociate, which degrades the quantum efficiency of the diatomic scintillator. Studies have shown a 50% reduction in quantum efficiency after exposure to air for 100 minutes at a relative humidity of 50% [203,204]. Other factors such as extreme photon flux and ion bombardment are also known to degrade the performance of CsI photocathodes [202].…”

Section: Photocathodesmentioning

confidence: 99%

Research and Development Toward Massive Liquid Argon Time Projection Chambers for Neutrino Detection

Thiesse

2017

View full text Add to dashboard Cite

First of all, I would like to thank my supervisor, Neil Spooner, without whose support and guidance, this thesis would not have been possible.Also, I would like to thank the many nice people at Fermilab for their supervision and helpful feedback on my work for the 35-ton including Alan Hahn, Tom Junk, Michelle Stancari, and Tingjun Yang.I would like to thank the many helpful people in the Sheffield PPPA group and Physics Department as a whole who have assisted in solving my many problems in the lab, computing support, general academic support, and mechanical workshop support. Especially,

show abstract

Section: Photocathodesmentioning

confidence: 99%

Research and Development Toward Massive Liquid Argon Time Projection Chambers for Neutrino Detection

Thiesse

2017

View full text Add to dashboard Cite

show abstract

“…Two types of wire chamber based photon detectors were initially considered, a CsI photocathode in a MWPC, and a TMAE detector with 10 cm deep, 8 x 8 mm 2 unit cells. After considerable success of on-the-bench and beam tests [13,14,15], the detectors were tested in a high rate environment, as expected in the HERA-B experiment. Both detectors had to be abandoned; the TMAE detector showed a prohibitive decrease of avalanche gain due to aging effects [16,17], while the CsI photocathode could not be routinely produced and maintained with sufficiently high quantum efficiency, in addition to problems with rates in excess of a few kHz per pixel [18,19].…”

Section: Photon Detectormentioning

confidence: 99%

The HERA-B ring imaging Cherenkov counter

Ariño¹,

Bastos²,

Broemmelsiek³

et al. 2004

Nuclear Instruments and Methods in Physics Research Section A:

View full text Add to dashboard Cite

The HERA-B RICH uses a radiation path length of 2.8 m in C 4 F 10 gas and a large 24 m 2 spherical mirror for imagingČerenkov rings. The photon detector consists of 2240 Hamamatsu multi-anode photomultipliers with about 27,000 channels. A 2:1 reducing two-lens telescope in front of each PMT increases the sensitive area at the expense of increased pixel size, resulting in a contribution to the resolution which roughly matches that of dispersion. The counter was completed in January of 1999, and its performance has been steady and reliable over the years it has been in operation. The design performance of the RICH was fully reached: the average number of detected photons in the RICH for a β = 1 particle was found to be 33 with a single hit resolution of 0.7 mrad and 1 mrad in the fine and coarse granularity regions, respectively.

show abstract