University of Surrey

Test tubes in the lab Research in the ATI Dance Research

An ASIC for the study of charge sharing effects in small pixel cdznte X-ray detectors

Veale, MC, Bell, SJ, Jones, LL, Seller, P, Wilson, MD, Allwork, C, Kitou, D, Sellin, PJ, Veeramani, P and Cernik, RC (2011) An ASIC for the study of charge sharing effects in small pixel cdznte X-ray detectors IEEE Transactions on Nuclear Science, 58 (5). pp. 2357-2362.

[img] Text
veale tns58.pdf
Restricted to Repository staff only
Available under License : See the attached licence file.

Download (875kB)
[img] Text (licence)
Restricted to Repository staff only

Download (1kB)


An Application Specific Integrated Circuit (ASIC) has been developed at the Rutherford Appleton Laboratory (RAL) to study the small pixel effect in spectroscopic CdTe and CdZnTe detectors. The PIXIE ASIC consists of four arrays of 3 × 3 channels flip chip bonded directly to the detector pixels. The active circuitry of each channel is a charge sensitive preamplifier and an output buffer which is multiplexed directly off chip. Each of the four detector arrays has a different anode geometry. The HEXITEC series of small pixel detectors developed at RAL have demonstrated energy resolutions of ~1 keV per pixel for both CdTe and CdZnTe, however, charge sharing events account for between 30-40% of the total count rate and can lead to degradation of the spectroscopy if not corrected for. The PIXIE ASIC will be used to study the effect of anode geometry on charge sharing and other aspects of the small pixel effect.

Item Type: Article
Authors :
Veale, MC
Bell, SJ
Jones, LL
Seller, P
Wilson, MD
Allwork, C
Kitou, D
Sellin, PJ
Veeramani, P
Cernik, RC
Date : 2011
DOI : 10.1109/TNS.2011.2162746
Depositing User : Symplectic Elements
Date Deposited : 28 Mar 2017 14:58
Last Modified : 31 Oct 2017 14:12

Actions (login required)

View Item View Item


Downloads per month over past year

Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800