POSITOLOGY - SEARCH FOR SUITABLE DETECTOR ARRANGEMENTS FOR A POSITRON ECT WITH CONTINUOUS ROTATION

被引:27
作者
TANAKA, E [1 ]
NOHARA, N [1 ]
YAMAMOTO, M [1 ]
TOMITANI, T [1 ]
MURAYAMA, H [1 ]
ISHIMATSU, K [1 ]
TAKAMI, K [1 ]
机构
[1] HITACHI MED CORP,CHIBA,JAPAN
关键词
D O I
10.1109/TNS.1979.4330524
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
This paper proposes a continuously rotating positron ECT system, in which the detectors are arranged on a circular ring with “non-uniform” spacing so as to provide much finer sampling interval in the projections than the conventional circular ring system. The address signals on the coincidence events are read out through a rotary photo-coupler, and the detector system can be rotated at a desired speed. Suitable detector arrangements are searched which provide sufficiently fine sampling interval with reasonable sampling density uniformity. © 1979 IEEE.
引用
收藏
页码:2728 / 2731
页数:4
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