Progresses of MNSR in Shenzhen University

Progresses of the Miniature Neutron Source Reactor (MNSR) in Joint Institute of Applied Nuclear Technology in Shenzhen University are introduced in this paper.Following main issues are conclu ded : ① The continuous safty operating time is increased from 6～8 hours to 40 hours by special measures. This important progress opens the future of producing radioactive isotopes of micro-sphere containing rare-earth element 166 Ho which can cure liver cancer and has been obtained in MNSR; ② The superheat rabbit device and cycle rabbit device controlled by computer has been established. That extends the scope of activation analysis; ③ A new, simple and accurate method, Xenon poisoning method, measuring absolute neutron flux has been developed; ④ A system to check the radioactive release from the reactor by computerized devices has been set up.