Method and apparatus for gamma ray detection

Details Method and apparatus for gamma ray detection Method and apparatus for gamma ray detection

2006-04-04

2006-04-04

Hannaher, Constantine (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

Reexamination Certificate

active

07022995

ABSTRACT:
A high sensitivity, three-dimensional gamma ray detection and imaging system is provided. The system uses the Compton double scatter technique with recoil electron tracking. The system preferably includes two detector subassemblies; a silicon microstrip hodoscope and a calorimeter. In this system the incoming photon Compton scatters in the hodoscope. The second scatter layer is the calorimeter where the scattered gamma ray is totally absorbed. The recoil electron in the hodoscope is tracked through several detector planes until it stops. The x and y position signals from the first two planes of the electron track determine the direction of the recoil electron while the energy loss from all planes determines the energy of the recoil electron.

REFERENCES:
patent: 4852142 (1989-07-01), Pillay et al.
patent: 5175434 (1992-12-01), Engdahl
patent: 5506408 (1996-04-01), Vickers et al.
patent: 03267788 (1991-11-01), None

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