Preliminary study of depth of interaction measurement for a PET detector

LIAO Yan-Fei; ZHANG Zhi-Ming; LI Dao-Wu; SHUAI Lei; SHAN Bao-Ci; HUANG Xian-Chao; LIU Jun-Hui; CHEN Yan; WANG Ying-Jie; LIU Shuang-Quan; WANG Pei-Lin; WEI Shu-Jun; WEI Long

doi:10.1088/1674-1137/35/11/017

Chinese Physics C> 2011, Vol. 35> Issue(11) : 1070-1073 DOI: 10.1088/1674-1137/35/11/017

Preliminary study of depth of interaction measurement for a PET detector

Abstract
HTML
Reference
Related

PDF

Abstract：
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.

References

[1]

Bartzakos P, Thompson C L et al. IEEE Trans. Nucl. Sci., 1991, 38(2): 732-7382 Schmand M, Eriksson L et al. IEEE Trans. Nucl. Sci., 1998, 45(6): 3000-30063 Ziemons K, Achten R, Au ray E et al. IEEE Conferences, 2004, 4: 2430-24334 Nishikido F, Tsuda T, Inadama N et al. IEEE Conferences, 2006, 4: 3041-30445 Seidel J, Vaquero J J, Siegel S et al. IEEE Trans. Nucl. Sci., 1999, 46(3): 485-4906 Yamamoto S, Ishibashi H et al. IEEE Trans. Nucl. Sci., 1998, 45(3): 1078-10847 Streun M, Brandenburg G, Larue H et al. IEEE Trans. Nucl. Sci., 2003, 50(3): 344-3478 LIU Ji-Guo, LI Hong-Di, LIU Shi-Tao et al. IEEE Conferences, 2007, 5: 3314-33179 Ohi J, Tonami H. Nuclear Instruments and Methods in Physics Research A, 2007, 571: 223-22610 Cherry S R., SHAO Yi-Ping, Tornai M P et al. IEEE Trans. Nucl. Sci., 1995, 42(4): 1058-1063

Access

Get Citation

LIAO Yan-Fei, ZHANG Zhi-Ming, LI Dao-Wu, SHUAI Lei, SHAN Bao-Ci, HUANG Xian-Chao, LIU Jun-Hui, CHEN Yan, WANG Ying-Jie, LIU Shuang-Quan, WANG Pei-Lin, WEI Shu-Jun and WEI Long. Preliminary study of depth of interaction measurement for a PET detector[J]. Chinese Physics C, 2011, 35(11): 1070-1073. doi: 10.1088/1674-1137/35/11/017

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2011-01-24
Revised: 2011-03-02

Article Metric

Article Views(4330)
PDF Downloads(406)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Preliminary study of depth of interaction measurement for a PET detector

Received Date: 2011-01-24
Accepted Date: 2011-03-02
Available Online: 2011-11-05

Abstract: 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.