We review recent work involving micro-strip gas counters with "advanced passivated" cathode strips. We present results from tests of a new variation of the MSGC, the planar micro-gap counter (PMGC), with very small (similar to 10 mu m) anode-cathode gap. Gains of up to 3 x 10(4) were achieved and gain variations due to charging effects were less than 10% using an ordinary (uncoated) bore-silicate glass substrate. The PMGC showed no reduction in gain when subjected to an X-ray flux of 4 x 10(5) Hz/mm(2) and survived exposure to alpha particles equivalent to 75 days' running at LHC with no signs of strip damage. (C) 1998 Elsevier Science B.V. All rights reserved.
Substrate-less, spark-free micro-strip gas counters
MASSAI, MARCO MARIA;
1998-01-01
Abstract
We review recent work involving micro-strip gas counters with "advanced passivated" cathode strips. We present results from tests of a new variation of the MSGC, the planar micro-gap counter (PMGC), with very small (similar to 10 mu m) anode-cathode gap. Gains of up to 3 x 10(4) were achieved and gain variations due to charging effects were less than 10% using an ordinary (uncoated) bore-silicate glass substrate. The PMGC showed no reduction in gain when subjected to an X-ray flux of 4 x 10(5) Hz/mm(2) and survived exposure to alpha particles equivalent to 75 days' running at LHC with no signs of strip damage. (C) 1998 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
