Accession Number:

ADD019934

Title:

Compton Scatter Imaging Instrument

Descriptive Note:

Patent application, filed 27 Apr 2000

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2000-04-27

Pagination or Media Count:

29.0

Abstract:

A device for determining the photon energy E1 and direction cone angle of incident gamma ray includes a radiation detector for receiving an incident gamma ray having an unknown photon energy E1 and an unknown direction and for scattering the gamma ray with two Compton scattering interactions and a subsequent scattering or absorption interaction. The detector provides three outputs, each output corresponding to one of the Compton scattering and the subsequent scattering or absorption interactions, to a processor, which is programmed to calculate the photon energy E1 and direction cone angle of the incident gamma ray based on these outputs. The detector configuration, for example one that includes multiple detector layers, provides an accurate determination of both the position and energy of the incident gamma ray, while the calculation of the photon energy E1 and direction cone angle of the incident gamma ray does not require absorption and measurement of the entire or substantially all the energy E1 in the detector.

Subject Categories:

  • Nuclear Instrumentation
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE