发明名称 |
METHOD AND APPARATUS TO PREVENT SIGNAL PILE-UP |
摘要 |
Methods and apparatuses for obtaining position and energy information without pileup. Signal integration, which is triggered by a present event, stops when a subsequent event is detected. A weighted value for estimating the total energy in a scintillation is calculated, which includes the energy of the current event and a residual energy from previous events. Remnant correction is used to calculate a pile-up free energy from two consecutive weighted values. An analog filter may be applied to reduce noise. Dynamic digital weighting of integrated values, and/or digital integration may be used during data processing. Pileup can be avoided in conjunction with several types of applications, including multi-zone detector applications and coincidence detection applications. High-resolution timing techniques are also disclosed that facilitate one's ability to avoid pileup. |
申请公布号 |
WO03040757(A2) |
申请公布日期 |
2003.05.15 |
申请号 |
WO2002US32788 |
申请日期 |
2002.10.16 |
申请人 |
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM;WONG, WAI-HOI;LI, HOUGDI;URIBE, JORGE;BAGHAEI, HOSSAIN |
发明人 |
WONG, WAI-HOI;LI, HOUGDI;URIBE, JORGE;BAGHAEI, HOSSAIN |
分类号 |
G01T1/161;G01T1/164;G01T1/17;G01T1/208;G02F1/035 |
主分类号 |
G01T1/161 |
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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