CsI-photocathode in-situ monitoring system in gaseous and noble-liquid photomultipliers

D. Vartsky; A. Roy; A. Coimbra; S. Shchemelinin; I. Israelashvili; L. Arazi; E. Erdal; A. Breskin

doi:10.1088/1748-0221/14/07/T07006

CsI-photocathode in-situ monitoring system in gaseous and noble-liquid photomultipliers

D. Vartsky, A. Roy, A. Coimbra, S. Shchemelinin, I. Israelashvili, L. Arazi, E. Erdal, A. Breskin

Unit of Nuclear Engineering

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A system is described for in-situ monitoring of VUV-photocathode response in gas-avalanche and noble-liquid photon detectors. It consists of a VUV light source, optical-fiber-based optics and a reference photodiode. The system permits real-time monitoring of detector photosensitivity variations due to atmospheric conditions, impurities or aging effects by photons and avalanche ions. We present the system's parameters such as, spectral response, light transmission and operation of the reference photodiode at cryogenic temperatures. We demonstrate a quantitative monitoring of CsI-photocathode deterioration following its exposure to various atmospheric conditions.

Original language	English
Article number	T07006
Journal	Journal of Instrumentation
Volume	14
Issue number	7
DOIs	https://doi.org/10.1088/1748-0221/14/07/T07006
State	Published - 30 Jul 2019

Keywords

Electron multipliers (gas)
GEM
InGrid
MHSP
MICROMEGAS
MICROPIC
Micropattern gaseous detectors (MSGC
Photoemission
Photon detectors for UV
THGEM, RETHGEM
etc)
solid-photocathodes)
visible and IR photons (gas) (gas-photocathodes

ASJC Scopus subject areas

Mathematical Physics
Instrumentation

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10.1088/1748-0221/14/07/T07006

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@article{75bc89b147714d9caa26433605cb04e2,

title = "CsI-photocathode in-situ monitoring system in gaseous and noble-liquid photomultipliers",

abstract = "A system is described for in-situ monitoring of VUV-photocathode response in gas-avalanche and noble-liquid photon detectors. It consists of a VUV light source, optical-fiber-based optics and a reference photodiode. The system permits real-time monitoring of detector photosensitivity variations due to atmospheric conditions, impurities or aging effects by photons and avalanche ions. We present the system's parameters such as, spectral response, light transmission and operation of the reference photodiode at cryogenic temperatures. We demonstrate a quantitative monitoring of CsI-photocathode deterioration following its exposure to various atmospheric conditions.",

keywords = "Electron multipliers (gas), GEM, InGrid, MHSP, MICROMEGAS, MICROPIC, Micropattern gaseous detectors (MSGC, Photoemission, Photon detectors for UV, THGEM, RETHGEM, etc), solid-photocathodes), visible and IR photons (gas) (gas-photocathodes",

author = "D. Vartsky and A. Roy and A. Coimbra and S. Shchemelinin and I. Israelashvili and L. Arazi and E. Erdal and A. Breskin",

note = "Publisher Copyright: {\textcopyright} 2019 IOP Publishing Ltd and Sissa Medialab.",

year = "2019",

month = jul,

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doi = "10.1088/1748-0221/14/07/T07006",

language = "English",

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TY - JOUR

T1 - CsI-photocathode in-situ monitoring system in gaseous and noble-liquid photomultipliers

AU - Vartsky, D.

AU - Roy, A.

AU - Coimbra, A.

AU - Shchemelinin, S.

AU - Israelashvili, I.

AU - Arazi, L.

AU - Erdal, E.

AU - Breskin, A.

PY - 2019/7/30

Y1 - 2019/7/30

N2 - A system is described for in-situ monitoring of VUV-photocathode response in gas-avalanche and noble-liquid photon detectors. It consists of a VUV light source, optical-fiber-based optics and a reference photodiode. The system permits real-time monitoring of detector photosensitivity variations due to atmospheric conditions, impurities or aging effects by photons and avalanche ions. We present the system's parameters such as, spectral response, light transmission and operation of the reference photodiode at cryogenic temperatures. We demonstrate a quantitative monitoring of CsI-photocathode deterioration following its exposure to various atmospheric conditions.

AB - A system is described for in-situ monitoring of VUV-photocathode response in gas-avalanche and noble-liquid photon detectors. It consists of a VUV light source, optical-fiber-based optics and a reference photodiode. The system permits real-time monitoring of detector photosensitivity variations due to atmospheric conditions, impurities or aging effects by photons and avalanche ions. We present the system's parameters such as, spectral response, light transmission and operation of the reference photodiode at cryogenic temperatures. We demonstrate a quantitative monitoring of CsI-photocathode deterioration following its exposure to various atmospheric conditions.

KW - Electron multipliers (gas)

KW - GEM

KW - InGrid

KW - MHSP

KW - MICROMEGAS

KW - MICROPIC

KW - Micropattern gaseous detectors (MSGC

KW - Photoemission

KW - Photon detectors for UV

KW - THGEM, RETHGEM

KW - etc)

KW - solid-photocathodes)

KW - visible and IR photons (gas) (gas-photocathodes

UR - http://www.scopus.com/inward/record.url?scp=85072191242&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/14/07/T07006

DO - 10.1088/1748-0221/14/07/T07006

M3 - Article

AN - SCOPUS:85072191242

SN - 1748-0221

VL - 14

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 7

M1 - T07006

ER -

CsI-photocathode in-situ monitoring system in gaseous and noble-liquid photomultipliers

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

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