Title:
放射性物質の解析プロセスおよび解析装置
Document Type and Number:
Japanese Patent JP4854116
Kind Code:
B2
Abstract:
According to the invention, an object ( 2 ) and particularly a radioactive waste package that may contain fissile isotopes and/or fertile isotopes, is analyzed by irradiating the object by thermal, epithermal and fast neutrons resulting from a series of initial fast neutron pulses, the prompt and delayed neutron signals emitted by the object after each pulse are measured, these signals are accumulated, and the contribution Sp of prompt neutrons originating form thermal fission and the contribution Sr of delayed neutrons originating from thermal, epithermal and fast fission are determined from this sum of all signals, and the quantity of each isotope is determined using Sp and Sr and additional information about the isotope quantites.
Inventors:
Ryushi, Abdala
Pascali-Barthelmi, Raymon
Payang, Emmanuel
Lau, Anne-Cecile
Pascali-Barthelmi, Raymon
Payang, Emmanuel
Lau, Anne-Cecile
Application Number:
JP2000611110A
Publication Date:
January 18, 2012
Filing Date:
April 05, 2000
Export Citation:
Assignee:
INSERM(INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE)
Areva Ense
Areva Ense
International Classes:
G01T1/167; G21C17/00; G01N23/222; G01T3/00; G21C17/07; G21F9/36
Domestic Patent References:
| JPS5138880B1 | 1976-10-25 | |||
| JPH1164528A | 1999-03-05 | |||
| JPH07296011A | 1995-11-10 | |||
| JPH02222857A | 1990-09-05 | |||
| JPH01244345A | 1989-09-28 |
Foreign References:
| US4483816A | 1984-11-20 | |||
| US4497768A | 1985-02-05 |
Attorney, Agent or Firm:
Sonoda Yoshitaka
Kobayashi Yoshinori
Kobayashi Yoshinori