Micro strip gas chambers overcoated with carbon, hydrogenated amorphous silicon, and glass films

Bishai, M.; Gerndt, E.; Shipsey, I. P. J.; Bagulya, A. V.; Grishin, V.M.; Negodaev, M.; Ligachev, V. A.

doi:10.1016/s0168-9002(97)00932-7

Cited by 1 publication

(1 citation statement)

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“…Previous studies showed, however, gain instabilities and gain variations due to polarization and charge accumulation at the surface of high-resistivity substrates, such as boron-silicate glass. To avoid charge accumulation and substrate instability, the optimum substrate should have some properties such as a resistivity in the range of 10 9 -10 12 cm at 20˚C and good electronic conduction and radiation hardness [2]. In recent years, many research groups have choosen different materials as substrates or adopted some steps to improve the substrate's properties such as using glasses of low resistivity (D263) as substrates, applying passivation layers [3,4] and implanting different ions (C, B, Fe, P, etc) into different substrates (glass, quartz, sapphire, etc), but all inevitably have shortcomings.…”

Section: Introductionmentioning

confidence: 99%

Development of MSGC detectors on diamond film-coated silicon composite substrates

Wang

Zhang

et al. 2005

J. Phys. D: Appl. Phys.

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In this paper, diamond film-coated silicon was developed to be used as a substrate in a microstrip gas chamber (MSGC) for the first time. The roughness of the composite substrate was rather low, and the resistivity was in the range of 1010–1011Ω cm. Its capacitance was very small and almost had no variation with frequency. All these results prove that the diamond film/Si composite material is a promising substrate for MSGCs. Using this composite substrate, a MSGC detector with an area of 2 × 2 cm2 was fabricated. The effects of the drift voltage and cathode voltage on the energy resolution for 5.9 keV 55Fe x-rays have been examined in detail and discussed. An energy resolution (the relative full width at half maximum of the x-ray peak) of 12.3% was achieved when the MSGC was operated at a drift voltage of −1000 V and a cathode voltage of −650 V with a gas mixture (90% Ar + 10% CH4).

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Section: Introductionmentioning

confidence: 99%