Evaluation of a data acquisition system for SPECT (PET)

被引：0
|
作者：
Stenstrom, P [1 ]
Rillbert, A [1 ]
Habte, F [1 ]
Bohm, C [1 ]
Larsson, SA [1 ]
机构：
[1] Univ Stockholm, Dept Phys, S-11385 Stockholm, Sweden
来源：
1999 IEEE NUCLEAR SCIENCE SYMPOSIUM - CONFERENCE RECORD, VOLS 1-3 | 1999年
关键词：
D O I：
暂无
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 fully digital data acquisition (D AQ) system [1,2] for a cylindrical (NaI(T1)) SPECT camera has been de veloped and tested. This system digitizes pulses of the scintillation e vents from the closest (7 or 5) PMTs to the interaction point. The digitized pulse waveforms are processed to obtain estimates of amplitude and time of ani val. We describe various processing methods based on both simulated and real data. The results obtained from a set of three neighboring PMTs using Tc-99m was 5.2 ns std, dev. in timing resolution, 12.6% energy resolution and the computing time per pulse about 7 mu s.
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页码：1332 / 1336
页数：3
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