THE MEASURING METHOD OF NUCLEAR MATERIAL BY NUCLEAR FISSION REACTION BY NEUTRON AND LOW TEMPERATURE DETECTOR, AND THE DEVICE THEREOF

摘要

The present invention provides the method and device thereof that a kind of measurement nuclear material passes through neutron and a low temperature detector using nuclear fission reaction. It by neutron and is provided in a kind of low temperature detector using this method measurement nuclear material nuclear fission reaction, the present invention includes: to radiate neutron in sample in step (step 1); Step (Fig. 2) obtains temperature signal, due to changing from nuclear fission reaction temperature by the step of neutron irradiation five; From temperature signal step 2 and nuclear material is determined with step (step 3) measurement nuclear fission reaction rate. In addition, the device by neutron and is provided in a kind of low temperature detector for measuring nuclear material using nuclear fission reaction, the present invention includes: which sample sealing a kind of goldleaf is inserted into; A kind of low temperature detector carries out being attached to a surface gold foil piece; A kind of amplification unit amplifies signal low temperature detector detected; A kind of chamber forms sealing system by storage gold foil, low temperature detector, inside amplification unit; Which is discharged into the room neutron of neutron source. According to the present invention, pass through neutron from nuclear fission with measurement fission products from the use low temperature detector of the Q- spectral techniques of alpha-decay by the way that α particles will be measured, the present invention can be improved measurement sensitivity and signal-to-noise ratio, so as to a small amount of nuclear material of measurement easily and quickly. ;The 2014 of copyright KIPO submissions