Development of scanning technique for sTGC detectors production quality control

Teterin, P.; Filippov, K.; Konovalov, S.; Mikenberg, G.; Romaniouk, A.; Shchukin, Dmitry G.; Shoa, M.; Smakhtin, V.; Smirnov, S. Yu.; Sosnovtsev, V.; Tikhomirov, V. O.; Tsekhosh, V. I.; Vorobev, K.

doi:10.1088/1742-6596/675/1/012015

Cited by 2 publications

(5 citation statements)

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“…We presented the applications of the X-ray scannig method for the sTGC detectors quality control. After the first studies [9] some improvements and additional applications have been found. The slit collimator tests demonstrated that the photoelectric effect is shown to be a dominated interaction for the photons with energies below 50 keV.…”

Section: Discussionmentioning

confidence: 99%

“…The X-ray tube parameters were set to 50 kV, 75 µA in order to achieve the highest rate and amplitude. During the earliest studies of the scanning technique we took data at 2900 V and n-pentane-CO 2 gas mixture with "high energy" X-ray tube mode (50 kV and 75 µA) [9,12]. This gas mixture was used for all the studies in this paper.…”

Section: Methodsmentioning

confidence: 99%

“…In order to provide quality control of the multiwire detectors, the gamma-radiation test with irradiation of the entire detector with Co-60 source was proposed in [8]. The X-ray scanner has been designed to obtain the information on defective areas of newly produced sTGC detectors [9] with local irradiation. The early-stage defect diagnostics allows to find and eliminate different technological defects in single layers and without any readout electronics installed.…”

Section: Introductionmentioning

confidence: 99%

“…result in gas gain non-uniformity and may cause discharges during the quality control (QC) procedure. Within scanning technique development several modes of the scanning were suggested [9]. All of them were tested during the detector mass-production at Weizmann Institute of Science.…”

Section: Introductionmentioning

confidence: 99%

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The X-ray scanning technique application for sTGC detectors quality control

Teterin¹,

Bressler²,

Doronin³

et al. 2020

J. Inst.

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The gas detectors, operated under harsh radiation conditions like the one foreseen at the High Luminosity LHC (HL-LHC), must fulfill a number of stringent quality control criteria. Based on high-voltage current measurements, the X-ray scanning technique has been developed for discovery of various production defects prior to the readout electronics installation. The later usually happens at the last stage of detector assembly. Thus, it allows testing the quality of the chambers, identifying defects and when possible fixing them already at early stage.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The X-ray scanning technique application for sTGC detectors quality control

Teterin¹,

Bressler²,

Doronin³

et al. 2020

J. Inst.

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“…At the production line of Weizmann Institute of Science, several methods for detector quality control are used. High voltage tests show discharges and high voltage stability of newly glued detectors, X-ray scanners can provide the information on defective areas [8] with local irradiation. However, neither high voltage test nor X-ray diagnostics allows one to read the data form cathode.…”

Section: Introductionmentioning

confidence: 99%

Cathode boards defects detection method for sTGC chambers

Teterin

Smakhtin

2020

J. Inst.

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Harsh radiation conditions, including the ones expected for the operation with High-Luminosity LHC, require detailed and careful quality control of any gas detector from the very beginning stage of assembly. The existing probe methods for cathode boards QC are able to find shorts to ground, shorts between pads, and breaks in the readout line at the initial stage of manufacturing. The cosmic test requires fully assembled detectors and reveals pads with absent or low amplitude analog signals associated with resistance in the readout trace line. In the current work, we propose the direct method of such a defect recognition for both bare cathode boards and fully assembled detectors and demonstrate the examples of a successful cure.

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Development of scanning technique for sTGC detectors production quality control

Cited by 2 publications

References 1 publication

The X-ray scanning technique application for sTGC detectors quality control

The X-ray scanning technique application for sTGC detectors quality control

Cathode boards defects detection method for sTGC chambers

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