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Patent Searching and Data


Title:
A RADIATION DETECTOR
Document Type and Number:
WIPO Patent Application WO/2018/133088
Kind Code:
A1
Abstract:
A radiation detector (100), comprising: a radiation absorption layer (110) comprising an electrode; a voltage comparator (301) that compares a voltage of the electrode to a first threshold (VI); a counter (320) that registers a number of photons of radiation absorbed by the radiation absorption layer (110); a controller (310); and a voltmeter (306). The controller (310) is configured to start a time delay (TDl) from a time at which the voltage comparator (301) determines that an absolute value of the voltage equals or exceeds an absolute value of the first threshold (VI). The controller (310) is configured to cause the voltmeter (306) to measure the voltage upon expiration of the time delay (TDl). The controller (310) is configured to determine the number of photons by dividing the voltage measured by the voltmeter (306) by a voltage that a single photon would have caused on the electrode. The controller (310) can cause the number registered by the counter (320) to increase by the number of photons.

Inventors:
CAO PEIYAN (CN)
LIU YURUN (CN)
Application Number:
PCT/CN2017/072175
Publication Date:
July 26, 2018
Filing Date:
January 23, 2017
Export Citation:
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Assignee:
SHENZHEN XPECTVISION TECH CO LTD (CN)
International Classes:
A61B6/00; G01T1/16; G01N23/083; G01T1/24
Domestic Patent References:
WO2016161544A12016-10-13
WO2014175458A12014-10-30
WO2016161544A12016-10-13
Foreign References:
US8053722B12011-11-08
CN103430533A2013-12-04
CN102135626A2011-07-27
Other References:
See also references of EP 3571527A4
Attorney, Agent or Firm:
SHENZHEN ARK INTELLECTUAL PROPERTY AGENT LLP (CN)
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