The reconstruction of the positron trajectory in the MEG-II experiment searching for the µ + → e +γ decay uses a cylindrical drift chamber operated with a helium-isobutane gas mixture. A stable performance of the detector in terms of its electron drift properties, avalanche multiplication, and with a gas mixture of controlled composition and purity has to be provided and continuously monitored. In this paper we describe the strategies adopted to meet the requirements imposed by the target sensitivity of MEG-II, including the construction and commissioning of a small chamber for an online monitoring of the gas quality

Gas Distribution and Monitoring for the Drift Chamber of the MEG-II Experiment

Baracchini E;
2018-01-01

Abstract

The reconstruction of the positron trajectory in the MEG-II experiment searching for the µ + → e +γ decay uses a cylindrical drift chamber operated with a helium-isobutane gas mixture. A stable performance of the detector in terms of its electron drift properties, avalanche multiplication, and with a gas mixture of controlled composition and purity has to be provided and continuously monitored. In this paper we describe the strategies adopted to meet the requirements imposed by the target sensitivity of MEG-II, including the construction and commissioning of a small chamber for an online monitoring of the gas quality
2018
Gas systems and purification; Gaseous detectors; Wire chambers (MWPC, Thin-gap chambers, drift chambers, drift tubes, proportional chambers etc)
File in questo prodotto:
File Dimensione Formato  
2018_JInstrum_13_P06018_Baracchini.pdf

non disponibili

Descrizione: Articolo
Tipologia: Versione Editoriale (PDF)
Licenza: Non pubblico
Dimensione 2.53 MB
Formato Adobe PDF
2.53 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12571/1870
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 10
  • ???jsp.display-item.citation.isi??? 11
social impact