AN IMPROVED MULTICRYSTAL 2-D BGO DETECTOR FOR PET

被引：27

作者：

ROGERS, JG

TAYLOR, AJ

RAHIMI, MF

NUTT, R

ANDREACO, M

WILLIAMS, CW

机构：

[1] UNIV MASHHAD,DEPT PHYS,MASHHAD,IRAN

[2] SIEMENS,CTI,KNOXVILLE,TN 37933

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1992年 / 39卷 / 04期

关键词：

D O I：

10.1109/23.159760

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：

We evaluate and compare two new 2-D array detectors for PET. Both consist of an 8 x 8 array of small BGO crystals coupled to a 2 x 2 array of photomultiplier tubes. The depth of the crystals is 3 cm in one detector and 2 cm in the other. The 2 cm detector is obviously superior in terms of material costs, but is also superior in energy resolution per crystal, and in its ability to clearly identify the crystal containing the primary interaction. We present a flexible and robust algorithm for crystal identification in such array detectors. The prospect of obtaining still better spatial resolution from such block detectors, with increased numbers of crystals, is discussed.

引用

页码：1063 / 1068

页数：6