The C.A.T. Pixel Proportional Gas Counter Detector

Bartol, F.; Bordessoule, Michel; Chaplier, G.; Lemonnier, M.; Megtert, S.

doi:10.1051/jp3:1996127

Cited by 84 publications

(52 citation statements)

References 5 publications

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“…[32] have compared the performance of a standard MSGC, alone and with the addition of a gas electron multiplier as pre-amplifying stage, under identical conditions of irradiation. The results of the simultaneous exposure to a high X-rays flux (~10 4 Hz mm -2 ) and to the internal α source are summarized in Fig. 5, providing the distribution of discharging groups as a function of the MSGC cathode voltage, as well as the corresponding gain curves (measured at low rates) without and with a moderate added preamplification (by a factor of 50).…”

Section: Previous Observations With Micro-pattern Detectorsmentioning

confidence: 99%

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High rate behavior and discharge limits in micro-pattern detectors

Bressan

Hoch

Pagano

et al. 1999

Nuclear Instruments and Methods in Physics Research Section A:

121

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We present and discuss a set of systematic measurements, carried out with gaseous proportional micro-pattern detectors, in order to assess their maximum gain when irradiated with high-rate soft X-rays and heavily ionizing alpha particles. The inventory of detectors tested includes: microstrips, micromegas, micro-dot, gas electron multiplier, CAT (compteur à trous), trench (or groove), micro-CAT (or WELL) detectors, as well as systems with two elements of gaseous amplification in cascade. W e confirm the general trend of all single-stage detectors to follow Raether's criterion, i.e. a spontaneous transition from avalanche to streamer, followed by a discharge, when the avalanche size reaches a value of a few 10 7 ; a noticeable exception is the micro-dot counter holding more than 10 8 . In multiple structures, where the gain is shared between two devices i n cascade, the maximum overall gain under irradiation is increased by at least one order of magnitude; we speculate this to be a consequence of a voltage dependence of Raether's limit, larger for low operating potentials. Our conclusion is that only multiple devices can guarantee a sufficient margin of reliability for operation in harsh LHC running conditions.

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Section: Previous Observations With Micro-pattern Detectorsmentioning

confidence: 99%

“…A nonexhaustive list of such innovative devices includes the micro-gap [2], micro-dot [3], "compteur à trous" (CAT) [4], small gap [5], micromegas [6], gas electron multiplier (GEM) [7], micro-CAT [8], micro-groove and WELL detectors [9,10]. For a recent review see for example [11,12].…”

Section: Introductionmentioning

confidence: 99%

High rate behavior and discharge limits in micro-pattern detectors

Bressan

Hoch

Pagano

et al. 1999

Nuclear Instruments and Methods in Physics Research Section A:

121

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“…An innovative structure, the so-called "Compteur à Trous" (CAT) [25] consists in its basic form of a single hole in a metallic plate, facing a collecting anode. Charges released in an overlaying low field region are focussed into the hole, multiplied by the high field and detected.…”

Section: Transitions Part Two: Avalanche To Sparkmentioning

confidence: 99%

Gas detectors: achievements and trends

Sauli

2001

Nuclear Instruments and Methods in Physics Research Section A:

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We describe recent developments of two areas of research on gaseous detectors: resistive plate chambers, aiming at best time resolution, and micropattern chambers, designed for high rate tracking in hostile environments. Emphasis is put on the progress in basic understanding of the operating features, and of the underlying physical processes. Some examples of applications of detectors outside particle physics are also provided.Invited review talk at the

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“…The CAT detector proposed by Bartol et al [12] consists of a sandwich of a metallic cathode and anode separated by an insulator, with holes drilled through the cathode to the insulator. A drift plane and appropriate voltages yield a focusing of the filed lines in the hole, thus providing large gains for electrons deposited in the volume above.…”

Section: Compteur a Trou (Cat) And Its Derivativesmentioning

confidence: 99%

“…have been demonstrated as shown in fig.7 from [12]. This detector was made by drilling, while the WELL detector, introduced by the PISA group [13], uses the technology developed by the printed circuit workshop at CERN for manufacturing the GEM detectors.…”

Section: Compteur a Trou (Cat) And Its Derivativesmentioning

confidence: 99%