Neutron lifetime measurement on setups with gravitational trap

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...

Full description

Saved in:
Bibliographic Details
Published in:Crystallography reports 2016-01, Vol.61 (1), p.139-143
Main Authors: Serebrov, A. P., Fomin, A. K., Kharitonov, A. G., Varlamov, V. E., Kolomenskiy, E. A., Krasnoshchekova, I. A., Chechkin, A. V.
Format: Article
Language:English
Subjects:
ACCURACY
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Crystallography and Scattering Methods
Diffraction and Scattering of Neutrons
ERRORS
LIFETIME
NEUTRON SPECTRA
NEUTRON SPECTROMETERS
NEUTRON SPECTROSCOPY
Physics
Physics and Astronomy
TRAPS
ULTRACOLD NEUTRONS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1063-7745
1562-689X
DOI:10.1134/S106377451601020X