Abstract
We have compared the high resolution BGO detector blocks from the EXACT HR PET system which use two dual-cathode rectangular photomultiplier (PM) tubes with a new block design, the EXACT HR PLUS, which uses four round PM tubes. Despite the lower coupling area between photocathode and scintillator, the HR PLUS block compares favorably with the HR block. The energy resolution averages 20% for the HR PLUS block and 23% for the HR block, with efficiency variations of 17% in both blocks. Additional measurements were carried out on the HR PLUS block to characterize depth of interaction effects and cross-talk between elements. Coincidence line spread function measurements had a FWHM of 3.0 mm in the axial direction and 2.9 mm in the transaxial direction. In light of these results, limitations of the BGO block design are discussed and some solutions proposed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1064-1068 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Nuclear Science |
| Volume | 42 |
| Issue number | 4 pt 1 |
| State | Published - Aug 1995 |
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ASJC Scopus subject areas
- Nuclear Energy and Engineering
- Electrical and Electronic Engineering
Cite this
Comparison of PET detector modules employing rectangular and round photomultiplier tubes. / Cherry, Simon R; Tornai, Martin P.; Levin, Craig S.; Siegel, Stefan; Hoffman, Edward J.; Andreaco, Mark S.; Williams, C. W.
In: IEEE Transactions on Nuclear Science, Vol. 42, No. 4 pt 1, 08.1995, p. 1064-1068.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Comparison of PET detector modules employing rectangular and round photomultiplier tubes
AU - Cherry, Simon R
AU - Tornai, Martin P.
AU - Levin, Craig S.
AU - Siegel, Stefan
AU - Hoffman, Edward J.
AU - Andreaco, Mark S.
AU - Williams, C. W.
PY - 1995/8
Y1 - 1995/8
N2 - We have compared the high resolution BGO detector blocks from the EXACT HR PET system which use two dual-cathode rectangular photomultiplier (PM) tubes with a new block design, the EXACT HR PLUS, which uses four round PM tubes. Despite the lower coupling area between photocathode and scintillator, the HR PLUS block compares favorably with the HR block. The energy resolution averages 20% for the HR PLUS block and 23% for the HR block, with efficiency variations of 17% in both blocks. Additional measurements were carried out on the HR PLUS block to characterize depth of interaction effects and cross-talk between elements. Coincidence line spread function measurements had a FWHM of 3.0 mm in the axial direction and 2.9 mm in the transaxial direction. In light of these results, limitations of the BGO block design are discussed and some solutions proposed.
AB - We have compared the high resolution BGO detector blocks from the EXACT HR PET system which use two dual-cathode rectangular photomultiplier (PM) tubes with a new block design, the EXACT HR PLUS, which uses four round PM tubes. Despite the lower coupling area between photocathode and scintillator, the HR PLUS block compares favorably with the HR block. The energy resolution averages 20% for the HR PLUS block and 23% for the HR block, with efficiency variations of 17% in both blocks. Additional measurements were carried out on the HR PLUS block to characterize depth of interaction effects and cross-talk between elements. Coincidence line spread function measurements had a FWHM of 3.0 mm in the axial direction and 2.9 mm in the transaxial direction. In light of these results, limitations of the BGO block design are discussed and some solutions proposed.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029358377&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0029358377
VL - 42
SP - 1064
EP - 1068
JO - IEEE Transactions on Nuclear Science
JF - IEEE Transactions on Nuclear Science
SN - 0018-9499
IS - 4 pt 1
ER -