An ultra fast, radiation-resistant fast neutron detector.
This paper describes a study on 14-MeV neutron detection based on the combination of a parallel plate avalanche chamber with a sheet of polypropylene as fast neutron-to-charged-particle converter. By employing a carefully shielded chamber, neutron-induced charged particles background from the chamber body was successfully reduced to <6 x 10(-5) count per incident neutron. Fast signals, with approximately 7 ns pulse width were observed. The obtained detection efficiency is 0.15%.
Nakhostin
M
M
Cyclotron and Radioisotope Center (CYRIC), Tohoku University, Sendai, Japan. nakhostin@cyric.tohoku.ac.jp
Baba
M
M
Oishi
T
T
Itoga
T
T
Hagiwara
M
M
D004563:Electrochemistry / Q000295:instrumentation*; D004566:Electrodes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009502:Neutrons; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers