发明名称 |
METHOD OF CONTROL OF MASS FRACTION OF URANIUM-235 ISOTOPE IN GASEOUS PHASE OF URANIUM HEXAFLUORIDE AND SYSTEM OF MEASUREMENT FOR IMPLEMENTATION OF THIS METHOD |
摘要 |
FIELD: analysis of nuclear materials. ^ SUBSTANCE: method of control of a mass fraction of uranium-235 isotope in a gaseous phase of uranium hexafluoride consists in measurement of intensity of gamma radiation at a chosen time interval with simultaneous measurement of pressure and temperature of gases in a measurement chamber; at that each measurement of a mass fraction of uranium-235 isotope in a gaseous phase of uranium hexafluoride is performed in two stages; during the first stage there is measured the intensity of gamma radiation from control sources - uranium protoxide-oxide-introduced in the space between the measurement chamber and a detector; during the second stage there is registered a radiation directly from uranium hexafluoride placed in the measurement chamber at various values of pressure of uranium hexafluoride, while the mass fraction of uranium-235 isotope in a gaseous phase is determined by calculation. Additionally to the known control system there are introduced control sources of uranium protoxide-oxide located on the gate with a mechanical drive, a valve of a sample splitting for mass spectrometric analysis and a sample splitter attached thereto, at that an inlet and outlet valves are controlled with electron keys to a command of a master controller. Energy of an analytical peak is 185.7 kiloelectronvolt. ^ EFFECT: development of such method and a control system that provide elimination of instability in time of the parameters of detecting blocks and allow to take in a complete consideration a background constituent under the basic analytical peak and to reduce equipment costs with simultaneous upgraded measurement accuracy. ^ 2 cl, 2 dwg |
申请公布号 |
RU2330308(C1) |
申请公布日期 |
2008.07.27 |
申请号 |
RU20060138927 |
申请日期 |
2006.11.03 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE UNITARNOE PREDPRIJATIE "URAL'SKIJ EHLEKTROKHIMICHESKIJ KOMBINAT" |
发明人 |
GUSEV VALERIJ PAVLOVICH;TKACHEV SERGEJ VALER'EVICH;PAVLIKOV VIKTOR ANATOL'EVICH;ARTEM'EV VLADIMIR ARKAD'EVICH;SAPRYGIN ALEKSANDR VIKTOROVICH;OVCHINNIKOV VALERIJ JUR'EVICH;ZALETSKIJ VIKTOR EHDUARDOVICH |
分类号 |
G01T1/00;G01N23/00 |
主分类号 |
G01T1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|