Portal de Periódicos da CAPES

A high efficiency pixelated detector for small animal PET

2004; Institute of Electrical and Electronics Engineers; Volume: 51; Issue: 3 Linguagem: Inglês

10.1109/tns.2004.829750

1558-1578

Vivek V. Nagarkar, Selezneva Ti, K.S. Shah, I. Shestakova, Simon R. Cherry,

Particle Detector Development and Performance

We report on the development of a new high efficiency detector for small animal PET. The detector is based on a monolithic block of LSO pixelated using laser ablation technique. The laser processing allows pixelation with very narrow, 70 /spl mu/m wide, inter-pixel gaps resulting in a substantially enhanced sensitivity when the detectors are operated in coincidence mode. This paper presents the first results of a detector module fabricated using this approach. Preliminary imaging data at 511 keV obtained by coupling the pixelated LSO to a position sensitive photomultiplier tube (PSPMT) and a position sensitive avalanche photodiode (PSAPD) are presented.