Improved measurement of the neutron absorption cross section for very low velocities

Improved measurement of the neutron absorption cross section for very low velocities

The absorption cross section of natural Gd and isotopic enriched 157Gd for ultra-cold neutrons (UCN) as a function of the velocity has been measured within a time-of-flight-experiment. Particular attention is paid to small velocities in the region of a few m/s. This is intended to determine the vali...

Full description

Bibliographic Details
Main Authors: J. Schroffenegger, P. Fierlinger, A. Hollering, P. Geltenbort, T. Lauer, H. Rauch, T. Zechlau
Format: Article
Language:English
Published: Elsevier 2016-01-01
Series:Physics Letters B
Subjects:
Neutron transport: diffusion and moderation
Protons and neutrons
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269315008783
id doaj-dffcffaf79a74412822867ce75e5edac
record_format Article
spelling doaj-dffcffaf79a74412822867ce75e5edac2020-11-24T22:39:59ZengElsevierPhysics Letters B0370-26931873-24452016-01-01752C21221610.1016/j.physletb.2015.11.030Improved measurement of the neutron absorption cross section for very low velocitiesJ. Schroffenegger0P. Fierlinger1A. Hollering2P. Geltenbort3T. Lauer4H. Rauch5T. Zechlau6Technische Universität Wien-Atominstitut, A-1020 Wien, AustriaPhysik-Department E18, Technische Universität München, D-85748 Garching, GermanyForschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM-II), 85747 Garching, GermanyInstitut Laue-Langevin, F-38042 Grenoble, FranceForschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM-II), 85747 Garching, GermanyTechnische Universität Wien-Atominstitut, A-1020 Wien, AustriaForschungs-Neutronenquelle Heinz Maier-Leibnitz (FRM-II), 85747 Garching, GermanyThe absorption cross section of natural Gd and isotopic enriched 157Gd for ultra-cold neutrons (UCN) as a function of the velocity has been measured within a time-of-flight-experiment. Particular attention is paid to small velocities in the region of a few m/s. This is intended to determine the validity of the 1/v-law governing absorption cross sections in this region and the resulting divergence at v=0. The experiment does not show any significant violation of 1/v for v>3 m/s.http://www.sciencedirect.com/science/article/pii/S0370269315008783Neutron transport: diffusion and moderationProtons and neutrons
collection DOAJ
language English
format Article
sources DOAJ
author J. Schroffenegger
P. Fierlinger
A. Hollering
P. Geltenbort
T. Lauer
H. Rauch
T. Zechlau
spellingShingle J. Schroffenegger
P. Fierlinger
A. Hollering
P. Geltenbort
T. Lauer
H. Rauch
T. Zechlau
Improved measurement of the neutron absorption cross section for very low velocities
Physics Letters B
Neutron transport: diffusion and moderation
Protons and neutrons
author_facet J. Schroffenegger
P. Fierlinger
A. Hollering
P. Geltenbort
T. Lauer
H. Rauch
T. Zechlau
author_sort J. Schroffenegger
title Improved measurement of the neutron absorption cross section for very low velocities
title_short Improved measurement of the neutron absorption cross section for very low velocities
title_full Improved measurement of the neutron absorption cross section for very low velocities
title_fullStr Improved measurement of the neutron absorption cross section for very low velocities
title_full_unstemmed Improved measurement of the neutron absorption cross section for very low velocities
title_sort improved measurement of the neutron absorption cross section for very low velocities
publisher Elsevier
series Physics Letters B
issn 0370-2693
1873-2445
publishDate 2016-01-01
description The absorption cross section of natural Gd and isotopic enriched 157Gd for ultra-cold neutrons (UCN) as a function of the velocity has been measured within a time-of-flight-experiment. Particular attention is paid to small velocities in the region of a few m/s. This is intended to determine the validity of the 1/v-law governing absorption cross sections in this region and the resulting divergence at v=0. The experiment does not show any significant violation of 1/v for v>3 m/s.
topic Neutron transport: diffusion and moderation
Protons and neutrons
url http://www.sciencedirect.com/science/article/pii/S0370269315008783
work_keys_str_mv AT jschroffenegger improvedmeasurementoftheneutronabsorptioncrosssectionforverylowvelocities
AT pfierlinger improvedmeasurementoftheneutronabsorptioncrosssectionforverylowvelocities
AT ahollering improvedmeasurementoftheneutronabsorptioncrosssectionforverylowvelocities
AT pgeltenbort improvedmeasurementoftheneutronabsorptioncrosssectionforverylowvelocities
AT tlauer improvedmeasurementoftheneutronabsorptioncrosssectionforverylowvelocities
AT hrauch improvedmeasurementoftheneutronabsorptioncrosssectionforverylowvelocities
AT tzechlau improvedmeasurementoftheneutronabsorptioncrosssectionforverylowvelocities
_version_ 1725706512196698112

Similar Items