Evaluation of various planar gaseous detectors with CsI photocathodes for the detection of primary scintillation light from noble gases

Periale, L.; Peskov, V.; Carlson, P.; Iacobeause, C; Francke, T.; Pavlopoulos, Nicholas G.; Pietropaolo, F.; Соколова, Т. В.; Picchi, P.

doi:10.1016/s0168-9002(02)01918-6

Cited by 15 publications

(10 citation statements)

References 5 publications

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“…Our studies show that the maximum achievable gain increases with the thickness of hole-type detectors [12]. On this basis we firstly developed and studied the performance of a thick GEM (TGEM) [7], [13], [14] made of printed circuit board, with a metallic coating on both sides bearing drilled holes (Fig. 1).…”

mentioning

confidence: 99%

Development and First Tests of GEM-Like Detectors With Resistive Electrodes

Peskov

Baibussinov

Centro

et al. 2007

IEEE Trans. Nucl. Sci.

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Abstract-We have developed and tested several prototypes of GEM-like detectors with electrodes coated with resistive layers or completely made of resistive materials. These detectors can operate stably at gains close to 10 5 . The resistive layers limit the energy of discharges appearing at higher gains thus making the detectors very robust. We demonstrated that the cathodes of some of these detectors could be coated by CsI or SbCs layers to enhance the detection efficiency for the UV and visible photons. We also discovered that such detectors can operate stably in the cascade mode and high overall gains ( 10 6 ) are reachable. Applications in several areas, for example in RICH or in noble liquid TPCs are therefore possible. The first results from the detection of UV photons at room and cryogenic temperatures will be given.Index Terms-CsI photocathode, GEM, noble liquids TPC.

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confidence: 99%

Development and First Tests of GEM-Like Detectors With Resistive Electrodes

Peskov

Baibussinov

Centro

et al. 2007

IEEE Trans. Nucl. Sci.

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“…Since the CsI was deposited directly onto the dielectric layer (no metallic substrate was present) it was not evident in advance if such a detector would work stably as a photon detector at sufficiently high gains. As an UV source in these studies we used either a Hg lamp [8] or a scintillation light produced by alpha particles in pure Ar at 1 atm [8,18]. Surprisingly enough, in the pulse counting mode, this detector worked very stably and gains of 6x10 5 were easily achieved in double step operation (see star symbols in Fig.…”

Section: Tgem With Resistive Kapton Electrodesmentioning

confidence: 99%

“…In another set of measurements we tried to evaluate the QE of the photocathode from the results obtained in detecting a scintillation light produced by alpha particles in pure Ar. This method is described in [8,18]. Here we will just recall that the charge signal from the RETGEM (in electrons) detecting the scintillation light produced by alpha particles is: B=AN ph ΩQpract, where A is a gas gain, N ph is the number of UV photons emitted by the alpha source, Ω is a solid angle at which the scintillation light reaches the CsI cathode.…”

Section: Tgem With Resistive Kapton Electrodesmentioning

confidence: 99%

Development of innovative micro-pattern gaseous detectors with resistive electrodes and first results of their applications

Mauro

Lund‐Jensen

Martinengo

et al. 2007

Nuclear Instruments and Methods in Physics Research Section A:

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The paper summarizes our latest progress in the development of newly introduced micro pattern gaseous detectors with resistive electrodes. These resistive electrodes protect the detector and the front-end electronics in case of occasional discharges and thus make the detectors very robust and reliable in operation. As an example, we describe in greater detail a new recently developed GEM-like detector, fully spark-protected with electrodes made of resistive kapton. We discovered that all resistive layers used in these studies (including kapton), that are coated with photosensitive layers, such as CsI, can be used as efficient photo cathodes for detectors operating in a pulse counting mode. We describe the first applications of such detectors combined with CsI or SbCs photo cathodes for the detection of UV photons at room and cryogenic temperatures.

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“…The advantages in compactness, ruggedness, reduced power consumption, and insensitivity to operation under strong magnetic fields [4] are in themselves desirable attributes. The application of CsI-based photosensors operating in gaseous atmosphere is also being studied by other authors, e.g., [5], [6].…”

Section: Introductionmentioning

confidence: 99%

The performance of the GPSC/MSGC hybrid detector with neon-xenon gas mixtures

Fernandes

Freitas

Trindade

et al. 2004

IEEE Trans. Nucl. Sci.

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The performance for X-ray spectrometry of neon-xenon gas proportional scintillation counters using a CsI-coated microstrip plate in direct contact with the scintillation gas as a VUV photosensor is investigated for different neon-xenon mixtures. At best operation conditions, the detector gain can reach values about 50% higher than those achieved with pure xenon filling. The highest gains and the best energy resolutions are achieved for xenon contents around 40%. However, the achieved energy resolutions are similar to those achieved with pure xenon. As in pure xenon and argon-xenon mixture gas fillings, the detector performance is limited by optical positive feedback resulting from additional scintillation produced in the electron avalanche processes around the MSP anodes. The best energy resolutions are achieved for positive feedback gains in the range of 1.1 to 1.2. The performance achieved with neon-xenon mixtures is inferior to that achieved with argon-xenon mixtures.Index Terms-CsI-photocathode, gas scintillation counter, microstrip gas chamber (MSGC), X-ray.

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Evaluation of various planar gaseous detectors with CsI photocathodes for the detection of primary scintillation light from noble gases

Cited by 15 publications

References 5 publications

Development and First Tests of GEM-Like Detectors With Resistive Electrodes

Development and First Tests of GEM-Like Detectors With Resistive Electrodes

Development of innovative micro-pattern gaseous detectors with resistive electrodes and first results of their applications

The performance of the GPSC/MSGC hybrid detector with neon-xenon gas mixtures

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