Semiconductor radiation detector with internal gain

Patent · Wed Jan 01 04:00:00 EST 2003

OSTI ID:875143

Iwanczyk, Jan ^[1]; Patt, Bradley E ^[2]; Vilkelis, Gintas ^[3]

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1. Los Angeles, CA
2. Sherman Oaks, CA
3. Westlake Village, CA

An avalanche drift photodetector (ADP) incorporates extremely low capacitance of a silicon drift photodetector (SDP) and internal gain that mitigates the surface leakage current noise of an avalanche photodetector (APD). The ADP can be coupled with scintillators such as CsI(Tl), NaI(Tl), LSO or others to form large volume scintillation type gamma ray detectors for gamma ray spectroscopy, photon counting, gamma ray counting, etc. Arrays of the ADPs can be used to replace the photomultiplier tubes (PMTs) used in conjunction with scintillation crystals in conventional gamma cameras for nuclear medical imaging.

• Research Organization: Photon Imaging, Inc. (Northridge, CA)
• DOE Contract Number: FG03-99ER82853
• Assignee: Photon Imaging, Inc. (Northridge, CA)
• Patent Number(s): US 6541836
• Application Number: 09/835829
• OSTI ID: 875143
• Country of Publication: United States
• Language: English

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