Distance measurement apparatus of gamma ray source using multilayered ray detector
AssigneesMitsubishi Heavy Industries, Ltd., Japan Aerospace Exploration Agency
InventorsYoshikatsu Kuroda, Tadayuki Takahashi, Shin Watanabe
Life of this patent
Estimating the term…
Abstract
Rays incident upon a plurality of detection plates arranged along a normal direction are detected. A distance between the ray and the ray source is estimated based on the number of counted rays detected by each detection plate, and each interval distance of the detection plates. Moreover, the direction of the source of the ray is estimated based on each image obtained from each detection plate.
Claims21
A distance measurement apparatus of an X-ray or gamma ray source using a multilayered radiation detector, comprising:
- a plurality of detection plates which are disposed along a normal direction and which generate signals on the basis of interaction with incident X-ray or gamma ray photons;
- a number count unit which counts the each number of the X-ray or gamma ray photons interacting with each of the plurality of the detection plates on the basis of the signals generated by each of the plurality of the detection plates;
- and
- a distance calculation unit which calculates a distance between the distance measurement apparatus and the X-ray or gamma ray source on the basis of the each number of the X-ray or gamma ray photons and each interval distance between the plurality of detection plates.
A distance measurement apparatus of an X-ray or gamma ray source using a multilayered radiation detector, comprising:
- a plurality of detection plates which are disposed along a normal direction and which generate signals on the basis of interactions with incident X-ray or gamma ray photons;
- a number count unit which counts the each number of the X-ray or gamma ray photons interacting with each of the plurality of the detection plates and detects positions of the interactions on each of the detection plates on the basis of the signals generated by each of the plurality of the detection plates and acquires intensity distribution of the X-ray or gamma ray photons on each of the detection plates;
- and
- a direction acquisition unit which acquires a incident direction of the ray with respect to the apparatus based on the each number of the X-ray or gamma ray photons and the intensity distribution.
A distance measurement apparatus of an X-ray or gamma ray source using a multilayered radiation detector, comprising:
- a plurality of charge-coupled imaging devices disposed along a normal direction, which generate signals on the basis of interaction with incident X-ray or gamma ray photons and which count the each number of the X-ray or gamma ray photons interacting with each of the plurality of the charge-coupled imaging plates on the basis of the signals;
- and
- a calculation unit which calculates a distance between the distance measurement apparatus and the X-ray or gamma ray source on the basis of the each number of the X-ray or gamma ray photons and each interval distance between the plurality of the charge-coupled imaging plates.
Dependencies are inferred from the claim text.