Preliminary study of depth of interaction measurement for a PET detector
Preliminary study of depth of interaction measurement for a PET detector
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PET探测器交互深度测量的初步研究
DOI:
10.1088/1674-1137/35/11/017
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发表时间:
2011-11
影响因子:
3.6
通讯作者:
中科院分区:
文献类型:
--
作者:
In this work we studied the feasibility of detecting the depth of interaction (DOI) with two layers of crystal arrays of LYSO and BGO scintillators coupled to a position-sensitive photomultiplier tube (PS-PMT) R8900-C12. A front-end electronics was designed, with which we got different pulse shapes for different crystals to obtain depth information. With the double integration method, we got the DOI histogram of a divided integration ratio of two crystals as the standard to determine the layer-of-interaction. The DOI accuracy, measured by scanning a 22Na slit source along the side of the module, was 98% for the LYSO layer and 95% for the BGO layer. The energy resolution at 511keV was 13.1% for LYSO and 17.1% for BGO. We obtained good crystal separation in 2D position histograms of both layers. These results could be useful in the manufacture of PET scanners with high spatial resolutions.
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影响因子:
1.8
作者:
Seidel, J;Vaquero, JJ;Green, MV
通讯作者:
Green, MV
DOI:
10.1109/nssmic.2002.1239637
发表时间:
2002-11
期刊:
2002 IEEE Nuclear Science Symposium Conference Record
影响因子:
--
作者:
A. Streun;G. Brandenburg;H. Larue;H. Saleh;E. Zimmermann;K. Ziemons;Horst Halling
通讯作者:
A. Streun;G. Brandenburg;H. Larue;H. Saleh;E. Zimmermann;K. Ziemons;Horst Halling
DOI:
10.1016/j.nima.2006.10.068
发表时间:
2007-02
影响因子:
1.4
作者:
J. Ohi;H. Tonami
通讯作者:
J. Ohi;H. Tonami
影响因子:
1.8
作者:
Yamamoto, S;Ishibashi, H
通讯作者:
Ishibashi, H
影响因子:
1.8
作者:
BARTZAKOS, P;THOMPSON, CJ
通讯作者:
THOMPSON, CJ