Bibliographic Details
| Title: |
Gas pixel detector for X-ray observation |
| Authors: |
Attié, D.1 david.attie@cea.fr, Campbell, M.2, Chefdeville, M.3, Colas, P.1, Delagnes, E.1, Giomataris, Y.1, van der Graaf, H.3, Llopart, X.2, Timmermans, J.3, Visschers, J.3 |
| Source: |
Nuclear Instruments & Methods in Physics Research Section A. Oct2009, Vol. 610 Issue 1, p178-182. 5p. |
| Subjects: |
Time projection chambers (Nuclear physics), Gas detectors, Image converters, Astronomical observatories, Complementary metal oxide semiconductors, Photoelectrons, Polariscope |
| Abstract: |
Abstract: We report on the status of the R&D for a digital Time Projection Chamber (TPC) based on Micromegas (MICRO MEsh GAseous Structure) detectors using the CMOS chip TimePix as a direct readout anode protected by highly resistive a-Si:H layer. A small chamber was built as a demonstrator of the 2-D and 3-D imaging capabilities of this technique. We illustrate the new capabilities of this detector for X-ray observation with data taken from radioactive sources. This small TPC is a very useful tool both for studying gas properties thanks to its good efficiency for single electrons, and for reconstructing photoelectron direction for use as a soft X-ray polarimeter. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
