Discharge Protection and Ageing of Micromegas Pixel Detectors


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Aarts, A.A. and Blanco Carballo, V.M. and Chefdeville, M. and Colas, P. and Dunand, S. and Fransen, M. and Graaf van der, H. and Giomataris, Y. and Hartjes, F. and Koffeman, G. and Melai, J. and Peek, H. and Riegler, W. and Salm, C. and Schmitz, J. and Smits, S.M. and Timmermans, J. and Visschers, J.L. and Wyrsch, N. (2006) Discharge Protection and Ageing of Micromegas Pixel Detectors. In: 2006 IEEE Nuclear Science Symposium Conference Record, 29 Oct - 4 Nov 2006, San Diego, CA, USA.

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Abstract:GridPix is a gas-filled detector in which a Micromegas is combined with a CMOS pixel chip. The GridPix detector, originally developed for the readout of TPCs, can be applied as X-ray imaging device. With a drift gap of only one mm, GridPix could be well applied as radiation hard, low power, (and therefore) low-mass vertex (track) detector. A procedure to construct a Micromegas onto a Si wafer, using chip production technology (‘wafer post processing’), has been developed. A method to protect the CMOS anode pixel chip against discharges has been studied. An ageing test of a Micromegas chamber has been carried out, after verifying the chamber’s proportionality at a very high dose rate
Item Type:Conference or Workshop Item
Copyright:© 2006 IEEE
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/61785
Official URL:http://dx.doi.org/10.1109/NSSMIC.2006.353833
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