Study of the performance and aging of RPCs

Author

Gustavino, Carlo

Author_Institution

Lab. Nazionali del gran Sasso, Ist. Nazionale di Fisica Nucl., Assergi, Italy

Volume

3

fYear

2005

fDate

23-29 Oct. 2005

Firstpage

1456

Lastpage

1460

Abstract

The study of resistive plate chambers (RPCs) carried out at the Gran Sasso National Laboratory (LNGS) over many years is presented. The performance of glass resistive plate chamber operated in avalanche mode has been studied by varying the particle rate and the temperature. The rate capability strongly improves with temperature, due to the lowering of the volume resistivity of glass electrodes. The glass RPC has also been studied in streamer mode, with several gas mixtures composed by argon, C₂H₂F₄; IsoC₄H₁₀ and SF₆: a small percentage of SF6 strongly reduces the streamer size, it allows an isobutane percentage well below the flammability limit and it improves the time resolution of the detector. Finally, a set of measurements has been carried out to assess the RPC aging under different operational conditions.

Keywords

position sensitive particle detectors; C₂H₂F₄ gas; IsoC₄H₁₀ gas; SF₆ gas; argon gas; avalanche mode glass resistive plate chamber; flammability limit; gas mixtures; glass electrodes; streamer mode glass resistive plate chamber; streamer size; volume resistivity; Aging; Argon; Conductivity; Electrodes; Flammability; Glass; Laboratories; Liquefied natural gas; Sulfur hexafluoride; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2005 IEEE

ISSN

1095-7863

Print_ISBN

0-7803-9221-3

Type

conf

DOI

10.1109/NSSMIC.2005.1596594

Filename

1596594