Title:
A RADIATION DETECTOR CAPABLE OF NOISE HANDLING
Document Type and Number:
WIPO Patent Application WO/2019/080036
Kind Code:
A1
Abstract:
A radiation detector, comprising: an avalanche photodiode (APD) with a first side coupled to an electrode and configured to work in a linear mode; a capacitor module (709) electrically connected to the electrode and comprising a capacitor, wherein the capacitor module (709) is configured to collect charge carriers from the electrode onto the capacitor; a current sourcing module (788) connected in parallel to the capacitor, which is configured to compensate for a leakage current in the APD and comprising a current source (901) and a modulator (902); the current source (901) is configured to output a first electrical current and a second electrical current; the modulator (902) is configured to control a ratio of a duration at which the current source (901) outputs the first electrical current to a duration at which the current source (901) outputs the second electrical current.
Inventors:
CAO PEIYAN (CN)
LIU YURUN (CN)
LIU YURUN (CN)
Application Number:
PCT/CN2017/107775
Publication Date:
May 02, 2019
Filing Date:
October 26, 2017
Export Citation:
Assignee:
SHENZHEN XPECTVISION TECH CO LTD (CN)
International Classes:
G01T1/16; G01T1/17
Domestic Patent References:
| WO2016161544A1 | 2016-10-13 | |||
| WO2016161542A1 | 2016-10-13 | |||
| WO2010020278A1 | 2010-02-25 |
Foreign References:
| CN103152531A | 2013-06-12 | |||
| CN1689316A | 2005-10-26 | |||
| CN101246047A | 2008-08-20 | |||
| CN1560577A | 2005-01-05 | |||
| CN105406912A | 2016-03-16 | |||
| JP2007235607A | 2007-09-13 | |||
| JP2003240859A | 2003-08-27 |
Other References:
DONG LONG ET AL.: "Design of the X-ray Single Photon Detection Circuit Based on Si-APD", SPACECRAFT RECOVERY & REMOTE SENSING, vol. 37, no. 1, 28 February 2016 (2016-02-28), pages 58, XP009519988
See also references of EP 3701287A4
See also references of EP 3701287A4
Attorney, Agent or Firm:
SHENZHEN ARK INTELLECTUAL PROPERTY AGENT LLP (CN)
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