Author/Authors :
Miuchi، نويسنده , , Kentaro and Kubo، نويسنده , , Hidetoshi and Nagayoshi، نويسنده , , Tsutomu and Orito، نويسنده , , Reiko and Takada، نويسنده , , Atsushi and Takeda، نويسنده , , Atsushi and Tanimori، نويسنده , , Toru and Ueno، نويسنده , , Masaru، نويسنده ,
Abstract :
We report on the performance of a micro-TPC with a micro pixel chamber (μ-PIC) readout for a time-resolved neutron position-sensitive detector (PSD). Three-dimensional tracks and the Bragg curves of protons with energies of around 1 MeV were clearly detected by the micro-TPC. More than 95% of gamma-rays of 511 keV were found to be discriminated by simple analysis. Simulation studies showed that the total track length of proton and triton emitted from the 3He(n,p(573 keV))3H(191 keV) reaction is about 1.2 cm, and that both particles have large energy losses (>200 keV/cm) in 1 atm Ar+C2H6(10%)+3He(<1%). These values suit the current performance of the micro-TPC, and we conclude that a time-resolved neutron PSD with spatial resolution of sub-millimeters shall be developed as an application of the micro-TPC.
Keywords :
Time-resolved neutron detector , Micro-pattern detector , Gaseous detector , Position-sensitive neutron detector , 3He neutron detector , Time projection chamber
