title: Development of a compact magnetic proton recoil spectrometer for measurement of deuterium-tritium neutrons.
abstract: A new compact magnetic proton recoil (MPR) neutron spectrometer has been designed for precise measurement of deuterium-tritium (DT) neutrons. This design is presented emphasizing the magnetic analyzing system, which is based on a compact quadrupole-dipole (QD) electromagnet. The focal plane detector (FPD) is also discussed with respect to application for the next step. The characteristics of the MPR spectrometer were calculated by using Monte Carlo simulation. A preliminary experiment was performed to test the magnetic analyzing system and the proton images of the FPD. Since the QD electromagnet design allows for a larger foil thickness and solid angle to be utilized, the MPR spectrometer defined in this paper can achieve neutron detection efficiency more than 5 × 10(-7) at an energy resolution of 1.5% for measuring DT neutrons.
authors.affiliation: School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
authors.forename: Jianfu
authors.initials: J
authors.lastname: Zhang
authors.affiliation: School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
authors.forename: Xiaoping
authors.initials: X
authors.lastname: Ouyang
authors.affiliation: School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
authors.forename: Suizheng
authors.initials: S
authors.lastname: Qiu
authors.affiliation: Applied Institute of Nuclear Technology, China Institute of Atomic Energy, Beijing 102413, People's Republic of China.
authors.forename: Guoguang
authors.initials: G
authors.lastname: Zhang
authors.affiliation: Northwest Institute of Nuclear Technology, Xi'an 710024, People's Republic of China.
authors.forename: Jinlu
authors.initials: J
authors.lastname: Ruan
authors.affiliation: Northwest Institute of Nuclear Technology, Xi'an 710024, People's Republic of China.
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Zhang
authors.affiliation: School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China.
authors.forename: Xianpeng
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Northwest Institute of Nuclear Technology, Xi'an 710024, People's Republic of China.
authors.forename: Shaohua
authors.initials: S
authors.lastname: Yang
authors.affiliation: Northwest Institute of Nuclear Technology, Xi'an 710024, People's Republic of China.
authors.forename: Jiwen
authors.initials: J
authors.lastname: Song
authors.affiliation: Northwest Institute of Nuclear Technology, Xi'an 710024, People's Republic of China.
authors.forename: Linyue
authors.initials: L
authors.lastname: Liu
authors.affiliation: Northwest Institute of Nuclear Technology, Xi'an 710024, People's Republic of China.
authors.forename: Hongyun
authors.initials: H
authors.lastname: Li