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Title:
GAIN CORRECTION DEVICE FOR DIGITAL PET DETECTOR
Document Type and Number:
WIPO Patent Application WO/2019/019450
Kind Code:
A1
Abstract:
A gain correction device for a digital PET detector. The device comprises a photoelectric conversion module (100) and a gain self-adaptation module (200), wherein the photoelectric conversion module (100) is in a communication connection with the gain self-adaptation module (200) and sends a scintillation pulse signal to the gain self-adaptation module (200); the gain self-adaptation module (200) comprises a gain adjustment module (210), an overflow determination module (220) and a gain setting module (230), wherein the gain adjustment module (210) receives and amplifies the scintillation pulse signal; the overflow determination module (220) is in communication connection with the gain adjustment module (210) in order to receive the amplified scintillation pulse signal and determine whether there is a signal overflow condition; when signal overflow occurs for the scintillation pulse signal, the overflow determination module (220) sends an adjustment signal to the gain adjustment module (210) so that the gain adjustment module (210) changes an amplification factor of the scintillation pulse signal; and when overflow does not occur for the scintillation pulse signal, the gain setting module (230) in communication connection with the overflow determination module (220) receives the amplified scintillation pulse signal. This gain correction device for a digital PET detector has a better gain correction effect, a simple design and good extensibility.

Inventors:
LIU TONG (CN)
HUA YUEXUAN (CN)
NIU MING (CN)
XIE QINGGUO (CN)
Application Number:
PCT/CN2017/108105
Publication Date:
January 31, 2019
Filing Date:
October 27, 2017
Export Citation:
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Assignee:
RAYCAN TECHNOLOGY CO LTD SUZHOU (CN)
International Classes:
G01T1/202; G01T7/00
Foreign References:
CN207114778U2018-03-16
CN107238854A2017-10-10
CN105534542A2016-05-04
US20100065746A12010-03-18
JPH08304551A1996-11-22
JPH02262085A1990-10-24
CN103777226A2014-05-07
Attorney, Agent or Firm:
INTEWIG & PARTNERS (CN)
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