Measurement of the Photoelectron Detection Efficiency of the HPD Anode

This paper reports on measurements carried out on the Hybrid Photon Detectors (HPDs) of the LHCb RICH detectors. The purpose of these tests is to determine the photoelectron detection efficiency $\eta$ of the HPD anode. Knowledge of $\eta$ is required for an accurate simulation of the RICH detectors...

Descripción completa

Detalles Bibliográficos
Autores principales: Carson, L, Pickford, A, Soler, P
Lenguaje:eng
Publicado: 2009
Materias:
Detectors and Experimental Techniques
Acceso en línea:http://cds.cern.ch/record/1168016
_version_ 1780916089283149824
author Carson, L
Pickford, A
Soler, P
author_facet Carson, L
Pickford, A
Soler, P
author_sort Carson, L
collection CERN
description This paper reports on measurements carried out on the Hybrid Photon Detectors (HPDs) of the LHCb RICH detectors. The purpose of these tests is to determine the photoelectron detection efficiency $\eta$ of the HPD anode. Knowledge of $\eta$ is required for an accurate simulation of the RICH detectors. It is found that this efficiency is $(93.3\pm0.7)\%$ for a 50 ns digital readout window, and $(87.9\pm1.4)\%$ for a 25 ns digital readout window. The 25 ns result exceeds the LHCb-RICH requirement of 85\%, and is in agreement both with direct $\eta$ measurements using preseries HPDs, and with indirect measurements from testbeams using preseries and production HPDs.
id cern-1168016
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-11680162019-09-30T06:29:59Zhttp://cds.cern.ch/record/1168016engCarson, LPickford, ASoler, PMeasurement of the Photoelectron Detection Efficiency of the HPD AnodeDetectors and Experimental TechniquesThis paper reports on measurements carried out on the Hybrid Photon Detectors (HPDs) of the LHCb RICH detectors. The purpose of these tests is to determine the photoelectron detection efficiency $\eta$ of the HPD anode. Knowledge of $\eta$ is required for an accurate simulation of the RICH detectors. It is found that this efficiency is $(93.3\pm0.7)\%$ for a 50 ns digital readout window, and $(87.9\pm1.4)\%$ for a 25 ns digital readout window. The 25 ns result exceeds the LHCb-RICH requirement of 85\%, and is in agreement both with direct $\eta$ measurements using preseries HPDs, and with indirect measurements from testbeams using preseries and production HPDs.LHCb-2009-038CERN-LHCb-2009-038oai:cds.cern.ch:11680162009-11-23
spellingShingle Detectors and Experimental Techniques
Carson, L
Pickford, A
Soler, P
Measurement of the Photoelectron Detection Efficiency of the HPD Anode
title Measurement of the Photoelectron Detection Efficiency of the HPD Anode
title_full Measurement of the Photoelectron Detection Efficiency of the HPD Anode
title_fullStr Measurement of the Photoelectron Detection Efficiency of the HPD Anode
title_full_unstemmed Measurement of the Photoelectron Detection Efficiency of the HPD Anode
title_short Measurement of the Photoelectron Detection Efficiency of the HPD Anode
title_sort measurement of the photoelectron detection efficiency of the hpd anode
topic Detectors and Experimental Techniques
url http://cds.cern.ch/record/1168016
work_keys_str_mv AT carsonl measurementofthephotoelectrondetectionefficiencyofthehpdanode
AT pickforda measurementofthephotoelectrondetectionefficiencyofthehpdanode
AT solerp measurementofthephotoelectrondetectionefficiencyofthehpdanode

Ejemplares similares