Synchrotron tests of 3D Medipix2 and TimePix X-ray detectors

In this article we report on the use micro-focus synchrotron X-ray radiation and pion beams to compare the detection efficiencies and charge sharing properties of novel 3D detectors to that of the current planar technology. Detector substrates are bump-bonded to the Medipx2 and Timepix chips. 55¿m s...

Full description

Saved in:
Bibliographic Details
Published in:2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC) pp. 2145 - 2150
Main Authors: MacRaighne, A., Akiba, K.C., Alianelli, L., Artuso, M., Bates, R., Bayer, F., Buytaert, J., Collins, P., Crossley, M., Eklund, L., Fleta, C., Gallas, A., Gandelman, M., Gersabeck, M., Gimenez, E.N., Gligorov, V., Huse, T., John, M., Llin, L.F., Lozano, M., Maneuski, D., Marchal, J., Michel, T., Nicol, M., Pellegrini, G., Perira, D.E., Plackett, R., O'Shea, V., Parkes, C., Rodrigues, E., Sawhney, K.J.S., Tartoni, N., Vazquez, P.
Format: Conference Proceeding
Language:English
Published: IEEE 01-10-2009
Subjects:
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this article we report on the use micro-focus synchrotron X-ray radiation and pion beams to compare the detection efficiencies and charge sharing properties of novel 3D detectors to that of the current planar technology. Detector substrates are bump-bonded to the Medipx2 and Timepix chips. 55¿m square pixel maps of the detection efficiencies have been produced using X-ray and MIP beams. For X-rays, a drop of 3-4% detection efficiency over the pixel area was found due to the central electrode. The corner electrodes show no degradation in efficiency compared to that of the planar device. For MIPs a drop of 0.5% in efficiency due to the central electrode was observed. Evidence of a considerable reduction in charge sharing in the 3D detectors compared to the planar devices is also shown.
ISBN:9781424439614
1424439612
ISSN:1082-3654
2577-0829
DOI:10.1109/NSSMIC.2009.5402093