Recherche et développement d'un détecteur gazeux PIM (Parallel Ionization Multiplier) pour la trajectographie de particules sous un haut flux de hadrons.

Abstract : PIM (Parallel Ionization Multiplier) is a multi-stage micropattern gaseous detector using micromeshes technology. This new device, based on MICROMEGAS (MICRO-MEsh GAseous Structure) detector principle of operation, offers good characteristics for minimum ionizing particle tracking. However, this kind of detectors placed in hadron environment suffers discharges which degrade sensibly the detection efficiency and account for hazard to the front-end electronics. In order to minimize these strong events, it is convenient to perform charges multiplication by several successive steps.
Within the framework of the European hadronphysics project (EU-I3HP-JRA4), we have investigated the multi-stage PIM detector for high hadrons flux application.
For this purpose, a systematic study for many geometrical configurations of a two amplification stages separated with a transfer space operated with the gaseous mixture Ne+10%CO2 has been performed. Beam tests realised with high energy hadrons at CERN facility have given that discharges probability could be strongly reduced with a suitable PIM device. A discharges rate lower to 10-9 by incident hadron and a spatial resolution of 51 µm have been measured at the beginning efficiency plateau (>96 %) operating point.
Complete list of metadatas

Cited literature [65 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00191999
Contributor : Jérôme Beucher <>
Submitted on : Monday, November 26, 2007 - 2:38:28 PM
Last modification on : Friday, June 22, 2018 - 9:28:04 AM
Long-term archiving on: Tuesday, September 21, 2010 - 3:26:08 PM

Identifiers

  • HAL Id : tel-00191999, version 2

Citation

Jérôme Beucher. Recherche et développement d'un détecteur gazeux PIM (Parallel Ionization Multiplier) pour la trajectographie de particules sous un haut flux de hadrons.. Physique des Hautes Energies - Expérience [hep-ex]. Université de Nantes, 2007. Français. ⟨tel-00191999v2⟩

Share

Metrics

Record views

372

Files downloads

988