发明名称 |
TOF-PET APPARATUS, DETECTOR RING AND DETECTOR |
摘要 |
According to one embodiment, a TOF-PET apparatus includes a plurality of detector rings arranged along a central axis thereof. Each of the detector rings comprises a plurality of scintillators and a plurality of photomultipliers. The scintillators are arranged on a substantial circumference around the central axis and generate scintillation in response to pair annihilation gamma-rays from a subject. The photomultipliers generate an electric signal in accordance with the generated scintillation. A length of each of the scintillators along a radial direction of the substantial circumference is set to a range in which a value of a total number of counts/time resolution of coincidence events of pair annihilation gamma-rays is more improved than when a reference scintillator whose probability of interaction with pair annihilation gamma-rays is adjusted to 80% is used under conditions of a constant total volume of the scintillators. |
申请公布号 |
US2011309256(A1) |
申请公布日期 |
2011.12.22 |
申请号 |
US201113161689 |
申请日期 |
2011.06.16 |
申请人 |
MORIYASU KENTA;TAKAYAMA TAKUZO |
发明人 |
MORIYASU KENTA;TAKAYAMA TAKUZO |
分类号 |
G01T1/164 |
主分类号 |
G01T1/164 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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