Neutron lifetime measurement on setups with gravitational trap

被引：4

作者：

Serebrov, A. P. ^{[1
]}

Fomin, A. K. ^{[1
]}

Kharitonov, A. G. ^{[1
]}

Varlamov, V. E. ^{[1
]}

Kolomenskiy, E. A. ^{[1
]}

Krasnoshchekova, I. A. ^{[1
]}

Chechkin, A. V. ^{[1
]}

机构：

[1] Natl Res Ctr Kurchatov Inst, Petersburg Nucl Phys Inst, Gatchina 188300, Leningrad Oblas, Russia

来源：

CRYSTALLOGRAPHY REPORTS | 2016年 / 61卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

Crystallography Report; Sterile Neutrino; Ultracold Neutron; Neutron Guide; Trap Window;

D O I：

10.1134/S106377451601020X

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Currently, the best accuracy of neutron lifetime measurements has been attained in the experiment with a gravitational trap for ultracold neutrons (UCNs), performed at the Petersburg Nuclear Physics Institute (PNPI); the measured lifetime was 878.5 +/- 0.8 s. A new setup with a big gravitational trap has been designed to continue the methods and approaches used in the previous experiment. It is planned to reduce the measurement error to 0.2 s, i.e., improve the existing accuracy by a factor of 4. The spectrometer was designed at PNPI and installed on the PF2/MAM beam at the Institute Laue-Langevin. Test experiments have been performed.

引用

页码：139 / 143

页数：5

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