A model of the high count rate performance of NaI(Tl)-based PET detectors

被引：13

作者：

Wear, JA

Karp, JS

Freifelder, R

Mankoff, DA

Muehllehner, G

机构：

[1] Univ Penn, Dept Radiol, Philadelphia, PA 19104 USA

[2] Univ Washington, Dept Radiol, Seattle, WA 98195 USA

[3] UGM Med Syst, Philadelphia, PA 19104 USA

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1998年 / 45卷 / 03期

关键词：

D O I：

10.1109/23.682008

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A detailed model of the response of large-area NaI(T1) detectors used in PET and their triggering and data acquisition electronics has been developed. This allows us to examine the limitations of the imaging system's performance due to degradation in the detector performance from light pileup and deadtime from triggering and event processing. Comparisons of simulation results to measurements from the HEAD PENN-PET scanner have been performed to validate the Monte Carlo model. The model was then used to predict improvements in the high count rate performance of the HEAD PENN-PET scanner using different signal integration times, light response functions, and detectors.

引用

页码：1231 / 1237

页数：7

共 17 条

[1]

DIFILIPPO F, 1997, J NUCL MED S, V38, pP863

[2]

FREIFELDER R, 1992, 1992 IEEE NUCL SCI S, V2, P888

[3] CORRECTION OF DISTORTIONS IN A DISCONTINUOUS IMAGE [J].