Performance study of little ionization chambers at the large hadron collider

Matti Kalliokoski, Bernd Dehning, Ewald Effinger, Viatcheslav Grishin, Juan Herranz Alvarez, Kristian Hjorth, Eva Barbara Holzer, Eduardo Nebot Del Busto, Christos Zamantzas

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

The main detector type for beam loss monitoring of the LHC is a parallel plate Ionization Chamber (IC). In the locations where the beam losses could saturate the read-out electronics of the ICs, two other monitor types, Little Ionization Chambers (LIC) and Secondary Emission Monitors, have been installed to extend the dynamic range of the ICs. The LICs have the same gas composition and pressure as the ICs, but the active volume is 30 times smaller. This reduction in geometrical acceptance reduces the collected dose and holds the LICs under the saturation limit in high loss events, such as during injection failures. In total there are 108 LICs installed in the LHC. In this document the performance of the LICs and their use in the LHC is discussed.

Original languageEnglish
Title of host publication2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop, NSS/MIC/RTSD 2016
PublisherIEEE
ISBN (Electronic)9781509016426
DOIs
Publication statusPublished - 16 Oct 2017
MoE publication typeA4 Article in a conference publication
EventIEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop - Strasbourg, France
Duration: 29 Oct 20166 Nov 2016

Workshop

WorkshopIEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop
Abbreviated titleNSS/MIC/RTSD
CountryFrance
CityStrasbourg
Period29/10/201606/11/2016

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