A new time projection chamber (TPC) was developed for neutron lifetime measurement using a pulsed cold neutron spallation source at the Japan Proton Accelerator Research Complex (J-PARC). Managing considerable background events from natural sources and the beam radioactivity is a challenging aspect of this measurement. To overcome this problem, the developed TPC has unprecedented features such as the use of polyether-ether-ketone plates in the support structure and internal surfaces covered with 6Li-enriched tiles to absorb outlier neutrons. In this paper, the design and performance of the new TPC are reported in detail.
@article{arxiv.1503.07936,
title = {Development of time projection chamber for precise neutron lifetime measurement using pulsed cold neutron beams},
author = {Y. Arimoto and N. Higashi and Y. Igarashi and Y. Iwashita and T. Ino and R. Katayama and R. Kitahara and M. Kitaguchi and H. Matsumura and K. Mishima and H. Oide and H. Otono and R. Sakakibara and T. Shima and H. M. Shimizu and T. Sugino and N. Sumi and H. Sumino and K. Taketani and G. Tanaka and M. Tanaka and K. Tauchi and A. Toyoda and T. Yamada and S. Yamashita and H. Yokoyama and T. Yoshioka},
journal= {arXiv preprint arXiv:1503.07936},
year = {2015}
}