Twingrid: a wafer post-processed multistage micro patterned gaseous detector

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Bilevych, Y. and Blanco Carballo, V.M. and Chefdeville, M.A. and Fransen, M. and Graaf, H. van der and Salm, C. and Schmitz, J. and Timmermans, J. (2009) Twingrid: a wafer post-processed multistage micro patterned gaseous detector. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 610 (3). pp. 644-648. ISSN 0168-9002

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Abstract:This paper presents a new multistage Micro Patterned Gaseous Detector (MPGD) made by wafer post-processing. The device consists of a double metal grid supported by SU-8 structures on top of a Timepix chip. The detector has been operated with He/iC4H10 and Ar/iC4H10 gas mixtures. Cosmic rays as well as 55Fe decay events have been recorded using the Timepix chip in 2D and 3D readout modes. The detector can be operated like a Micromegas (high field close to the chip) or like a GEM (amplification stage followed by a low extraction field). This approach for manufacturing GEM-like radiation imaging detectors allows for precise dimensional control and considerable geometrical design freedom.
Item Type:Article
Copyright:© 2009 Elsevier
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/68647
Official URL:http://dx.doi.org/10.1016/j.nima.2009.09.054
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