{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T07:12:12Z","timestamp":1790061132373,"version":"4.0.1"},"reference-count":45,"publisher":"IOP Publishing","issue":"19","license":[{"start":{"date-parts":[[2017,9,12]],"date-time":"2017-09-12T00:00:00Z","timestamp":1505174400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/publishingsupport.iopscience.iop.org\/iop-standard\/v1"},{"start":{"date-parts":[[2017,9,12]],"date-time":"2017-09-12T00:00:00Z","timestamp":1505174400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["Phys. Med. Biol."],"published-print":{"date-parts":[[2017,10,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Despite several attractive properties, the poor timing performance of compound semiconductor detectors such as CdTe and CdZnTe has hindered their use in commercial PET imaging systems. The standard method of pulse timing with such detectors is to employ a constant-fraction discriminator at the output of a timing filter which is fed by the pulses from a charge-sensitive preamplifier. The method has led to a time resolution of about 10 ns at full-width at half-maximum (FWHM) with 1\u2009mm thick CdTe detectors. This paper presents a detailed investigation on the parameters limiting the timing performance of Ohmic contact planar CdTe detectors with the standard pulse timing method. The jitter and time-walk errors are studied through simulation and experimental measurements and it is revealed that the best timing results obtained with the standard timing method suffer from a significant loss of coincidence events (~50%). In order to improve the performance of the detectors with full detection efficiency, a new digital pulse timing method based on a simple pattern recognition technique was developed. A time resolution of 3.29\u2009\u2009\u00b1\u2009\u20090.10 ns (FWHM) in the energy range of 300\u2013650\u2009keV was achieved with an Ohmic contact planar CdTe detector (5\u2009\u2009\u00d7\u2009\u20095\u2009\u2009\u00d7\u2009\u20091\u2009mm\n                    <jats:sup>3<\/jats:sup>\n                    ). The digital pulse processing method was also used to correct for the charge-trapping effect and an improvement in the energy resolution from 4.83\u2009\u2009\u00b1\u2009\u20090.66% to 2.780\u2009\u2009\u00b1\u2009\u20090.002% (FWHM) at 511\u2009keV was achieved. Further improvement of time resolution through a moderate cooling of the detector and the application of the method to other detector structures are also discussed.\n                  <\/jats:p>","DOI":"10.1088\/1361-6560\/aa8664","type":"journal-article","created":{"date-parts":[[2017,8,15]],"date-time":"2017-08-15T12:45:11Z","timestamp":1502801111000},"page":"N485-N505","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":8,"title":["Optimizing timing performance of CdTe detectors for PET"],"prefix":"10.1088","volume":"62","author":[{"given":"M","family":"Nakhostin","sequence":"first","affiliation":[{"name":"University of Surrey"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"266","published-online":{"date-parts":[[2017,9,12]]},"reference":[{"key":"pmbaa8664bib001","doi-asserted-by":"publisher","first-page":"772","DOI":"10.1016\/S0168-9002(00)00810-X","type":"journal-article","article-title":"Timing performance of pixelated CdZnTe detectors","volume":"458","author":"Amrami","year":"2001","journal-title":"Nucl. 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All rights, including for text and data mining, AI training, and similar technologies, are reserved.","name":"copyright_information","label":"Copyright Information"},{"value":"2017-02-01","name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2017-08-15","name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"value":"2017-09-12","name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}