原子炉制御用中性子検出器(第2報)
1962 年 31 巻 11 号 p. 887-893
詳細
1962 年 31 巻 11 号 p. 887-893
A neutron sensitive ion chamber, electrically compensated for γ rays, has been devised to measure correctly the neutron flux in nuclear reactors. After some experiments, electrical compensation has been confirmed to be superior to mechanical one. A chamber of this type, filled with nitrogen at 1 atm, has a sensitivity of 1.0×10-14 amp per unit thermal flux with linearity covering 107 range of neutron flux which corresponds to current range of 7×10-11 amp._??_7×10-4 amp. This type of neutron chamber turned out to be practical, and is now being used in Toshiba Training Reactor (TTR-1) at Kawasaki.
