发明名称 |
RADIATION IMAGING APPARATUS |
摘要 |
<p>A radiation imaging apparatus provided with a pulse height analyzer for checking whether the pulse height of the energy signal produced in response to each scintillation event falls within an energy window set for the particular (x,y) coordinate position of the scintillation. The pulse height analyzer has a memory for storing a plurality of energy windows each for a particular one of the coordinate positions in the scintillator and each having a particular central level and a particular width such that the nonuniformity of the sensitivity of the detector due to the position-dependency of the energy signal and/or other causes can be corrected. A preliminary pulse height analyzer may be provided to increase the counting rate of energy signals useful for image production.</p> |
申请公布号 |
EP0117299(B1) |
申请公布日期 |
1990.04.11 |
申请号 |
EP19830112030 |
申请日期 |
1983.11.30 |
申请人 |
SHIMADZU CORPORATION |
发明人 |
KUMAZAWA, YOSHIHIKO;MATSUYAMA, TSUNEKAZU |
分类号 |
G01T1/164 |
主分类号 |
G01T1/164 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|