-
- SHIRAKAWA Yoshiyuki
- Faculty of Engineering, Fukui University
-
- HORIKOSHI Kiyomi
- Kimitsu Works, Nippon Steel Corporation
-
- AMANO Hiro
- Amano & Associates
Bibliographic Information
- Other Title
-
- コンプトン散乱を利用した距離測定
Abstract
A distance measurement method to make use of Compton scattering of gamma-ray was proposed. This method treated two cases. Concretely, the case that density of a measured object was constant and the case that the density was changed were examined.<BR>A source and a detector are set up at the same side of the object. When density is not varied, the amount of scattered gamma-ray is not depending on a distance. However, the number of gamma-rays detected becomes a function of distance. The function is in proportion to the solid angle to the detector from the efficient center of a scattering region. On the other hand, in the case that density is changed, the number of scattered gamma-rays is altered by density. Hence the number becomes a function of distance and density. Dual detectors are located at different positions and we make two equations on relation of detected gamma-rays, distance and density. Here if the count of gamma-rays detected is given, both distance and density can be calculated.<BR>By using computer simulations and experiments, a performance of the method was evaluated. As a result, the precision of the distance measurement was ±3% within a range of 10-100 cm in constant density. In the case that the density is changed with a range 1.707-1.885 g/cm3, the accuracy of this method was ±1 mm within a range of 8-10 cm.
Journal
-
- RADIOISOTOPES
-
RADIOISOTOPES 45 (10), 605-612, 1996
Japan Radioisotope Association
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282679130716928
-
- NII Article ID
- 130004382859
-
- ISSN
- 18844111
- 00338303
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed