Detection of coincident radiations in a single transducer by pulse shape analysis

Patent · Tue Mar 11 00:00:00 EDT 2008

OSTI ID:970545

Warburton, William K ^[1]; Tan, Hui ^[2]; Hennig, Wolfgang ^[3]

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1. Menlo Park, CA
2. Newark, CA
3. Fremont, CA

Pulse shape analysis determines if two radiations are in coincidence. A transducer is provided that, when it absorbs the first radiation produces an output pulse that is characterized by a shorter time constant and whose area is nominally proportional to the energy of the absorbed first radiation and, when it absorbs the second radiation produces an output pulse that is characterized by a longer time constant and whose area is nominally proportional to the energy of the absorbed second radiation. When radiation is absorbed, the output pulse is detected and two integrals are formed, the first over a time period representative of the first time constant and the second over a time period representative of the second time constant. The values of the two integrals are examined to determine whether the first radiation, the second radiation, or both were absorbed in the transducer, the latter condition defining a coincident event.

• Research Organization: Warburton; William K. (Menlo Park, CA)
• Sponsoring Organization: USDOE
• DOE Contract Number: FG02-04ER84121
• Assignee: Warburton; William K. (Menlo Park, CA)
• Patent Number(s): 7,342,231
• Application Number: 11/426,762
• OSTI ID: 970545
• Country of Publication: United States
• Language: English

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