Hostname: page-component-848d4c4894-pftt2 Total loading time: 0 Render date: 2024-06-11T12:26:03.902Z Has data issue: false hasContentIssue false
  • English
  • Français

Pulse Filtering and Correction For CZT Detectors Using Simple Digital Algorithms Based on The Wavelet Transform

Published online by Cambridge University Press:  10 February 2011

J. M. Pérez  and
G. García-Belmonte
J. M. Pérez
Affiliation:
CLEMAT. Edificio 22. Avda Complutense, 22. E-28040 Madrid. SPAIN
G. García-Belmonte
Affiliation:
Universitat Jaume I. Dpt de Ciències Experimentals. 12080 Castellü;n. SPAIN
Get access

Abstract

We report an approach to double gaussian filtering used in classical works as dual parameter pulse processing. This technique has been implemented by creating a bank of gaussian-like digital filters based on wavelet transforms. A simple method to correct for the charge loss inherent to room temperature semiconductor gamma detectors has been developed. This method is based on multi-resolution signal analysis. Results are reported from tests of these algorithms on commercial CZT detectors and two trapped hole charge correction levels are compared. Finally, the advantages and limitations of this new approach to detector pulse processing are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 487: Symposium I – Semiconductors for Room-Temperature Radiation II , 1997 , 187
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] García-Belmonte, G., Pérez, J.M., Fernándndez-Marrón, J.L., Bisquert, J.. Nuclear Instruments and Methods in Physics Research A 380 (1996) pp. 376–380.Google Scholar
[2] García-Belmonte, G., Pérez, J.M., Marín, J., Fernández-Marrón, J.L.. Nuclear Instruments and Methods in Physics Research A 396 (1997) pp. 272–276.Google Scholar
[3] Gerrish, V.M., Beyerle, A.G. Nuclear Instruments and Methods in Physics Research A283 (1989) pp. 220–226.Google Scholar
[4] García-Belmonte, G., Hernández, R., Fernández-Marrón, J.L., Pérez, J.M. J. Applied Signal Processing (in press)Google Scholar
[5] García-Belmonte, G., PhD thesis, UNED, Spain, 1996.Google Scholar
[6] González, M. et al. ‘HgI2 DETECTOR ARRAY IN LEGRI’. International Conference on Small Satellites: Missions and Technology. Madrid, Spain, September 1996.Google Scholar
[7] Prydderch, M. L. et al. ‘THE LEGRI FRONT END ELECTRONICS’. International Conference on Small Satellites: Missions and Technology. Madrid, Spain, September 1996.Google Scholar