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Reseach Article

DST and DCT-based Depth of Interaction (DOI) Determining Techniques for LSO and LuYAP Scintillation Detectors in PET

by H. Saleh, A. Yahya, M. Ashour, M. Sayed
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 28 - Number 7
Year of Publication: 2011
Authors: H. Saleh, A. Yahya, M. Ashour, M. Sayed
10.5120/3397-4725

H. Saleh, A. Yahya, M. Ashour, M. Sayed . DST and DCT-based Depth of Interaction (DOI) Determining Techniques for LSO and LuYAP Scintillation Detectors in PET. International Journal of Computer Applications. 28, 7 ( August 2011), 41-45. DOI=10.5120/3397-4725

@article{ 10.5120/3397-4725,
author = { H. Saleh, A. Yahya, M. Ashour, M. Sayed },
title = { DST and DCT-based Depth of Interaction (DOI) Determining Techniques for LSO and LuYAP Scintillation Detectors in PET },
journal = { International Journal of Computer Applications },
issue_date = { August 2011 },
volume = { 28 },
number = { 7 },
month = { August },
year = { 2011 },
issn = { 0975-8887 },
pages = { 41-45 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume28/number7/3397-4725/ },
doi = { 10.5120/3397-4725 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:14:34.661660+05:30
%A H. Saleh
%A A. Yahya
%A M. Ashour
%A M. Sayed
%T DST and DCT-based Depth of Interaction (DOI) Determining Techniques for LSO and LuYAP Scintillation Detectors in PET
%J International Journal of Computer Applications
%@ 0975-8887
%V 28
%N 7
%P 41-45
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The absorption of radiation in multicrystal PET detectors results in different decay-time pulses. The differences between these pulse decay time constants are used to discriminate between different scintillator materials. In this paper, pulse shape discrimination (PSD) techniques based on the discrete sine transform (DST) and discrete cosine transform (DCT) are proposed. These transformations are used to extract frequency-domain features for discrimination. Comparison of the proposed PSD techniques was performed on digitized pulses from the LSO/LuYAP phoswich detector. The comparison between different DST- and DCT-types turned out that DST-type 3 gives the best PSD efficiency of 98.79%, while DCT-type 2 gives 98.12%.

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Index Terms

Computer Science
Information Sciences

Keywords

Pulse shape discrimination DOI DST DCT