Performance of a micro-TPC for a time-resolved neutron PSD

Abstract

We report on the performance of a micro-TPC with a micro pixel chamber($\mu$-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 ${}^3\mathrm{He}$(n,p(573 keV))${}^3\mathrm{H}(191keV)$ reaction is about 1.2 cm, and that both particles have large energy losses ($>200keV/cm$) in 1 atm Ar+${\mathrm{C}}_2{\mathrm{H}}_6(10$+${}^3$He($<1$). 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.

13 pages, 10 figures, to appear in NIM A

References in corpus (3)

• Development of a time projection chamber with micro pixel electrodes
• Performance of the TPC with Micro Pixel Chamber Readout: micro-TPC
• Performance of large area Micro Pixel Chamber

Cited by in corpus (4)

• Readout technologies for directional WIMP Dark Matter detection
• Development of an advanced Compton camera with gaseous TPC and scintillator
• Development of an ASD IC for the Micro Pixel Chamber
• Performance of a Time-Projection-Chamber with a Large-Area Micro-Pixel-Chamber Readout