Abstract
We present recent results of an extensive aging test, performed at the CERN Gamma Irradiation Facility, on two bakelite Resistive Plate Chambers (RPC) detectors. With a method based on a model describing the behavior of an RPC exposed to a large particle flux, we have periodically measured the electrode resistivity ρ of the two detectors over 3 years. We observed a large increase of ρ with time, from initial values of about 1010 Ω cm to more than 200 × 1010 Ω cm. A corresponding degradation of the RPC rate capability, from about 3 kHz/cm2 to less than 200 Hz/cm2, was observed. The reversibility of the process, using a humid gas mixture, has also been studied.
Original language | English |
---|---|
Pages (from-to) | 82-85 |
Number of pages | 4 |
Journal | Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment |
Volume | 518 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 1 Feb 2004 |
Keywords
- Bakelite
- Current
- Detector
- Humid gas
- Resistivity
- RPC