Author/Authors :
Miyake، نويسنده , , Aki and Nishioka، نويسنده , , Takahiro and Singh، نويسنده , , Shailendra and Morii، نويسنده , , Hisashi and Mimura، نويسنده , , Hidenori and Aoki، نويسنده , , Toru، نويسنده ,
Abstract :
A CdTe detector with a Gd converter has been developed and investigated as a neutron detector for neutron imaging. The fabricated Gd/CdTe detector with the 25 μm thick Gd was designed on the basis of simulation results of thermal neutron detection efficiency and spatial resolution. The energy resolution of the Gd/CdTe detector is less than 4 keV, which is enough to discriminate neutron capture gamma rays from background gamma emission. The Gd/CdTe detector shows the detection of neutron capture gamma ray emission in the 155Gd(n, γ)156Gd, 157Gd(n, γ)158Gd and 113Cd(n, γ)114Cd reactions and characteristic X-ray emissions due to conversion-electrons generated inside the Gd film. The observed efficient thermal neutron detection with the Gd/CdTe detector shows its promise in neutron radiography application.
