Abstract.
We report on the design and first tests of a device allowing for measurement of ultracold neutrons polarisation by means of the simultaneous analysis of the two spin components. The device was developed in the framework of the neutron electric dipole moment experiment at the Paul Scherrer Institute. Individual parts and the entire newly built system have been characterised with ultracold neutrons. The gain in statistical sensitivity obtained with the simultaneous spin analyser is \((18.2\pm 6.1)\)% relative to the former sequential analyser under nominal running conditions.
References
M. Pospelov, A. Ritz, Ann. Phys. 318, 119 (2005)
D. Dubbers, M.G. Schmidt, Rev. Mod. Phys. 83, 1111 (2011)
J. Engel, M.J. Ramsey-Musolf, U. van Kolck, Progr. Part. Nucl. Phys. 71, 21 (2013)
C.A. Baker et al., Phys. Proc. 17, 159 (2011)
C.A. Baker et al., Nucl. Instrum. Methods A 736, 184 (2014)
C.A. Baker et al., Phys. Rev. Lett. 97, 131801 (2006)
B. Lauss, Hyperfine Interact. 211, 21 (2012)
N.F. Ramsey, Phys. Rev. 78, 695 (1950)
R. Golub, D.J. Richardson, S.K. Lamoreaux, Ultra-Cold Neutrons (Adam Hilger, Bristol, Philadelphia, and New York, 1991)
S.V. Grigoriev, A.I. Okorokov, V.V. Runov, Nucl. Instrum. Methods Phys. Res. A 384, 451 (1997)
P. Geltenbort et al., Nucl. Instrum. Methods Phys. Res. A 608, 132 (2009)
I.S. Altarev et al., Phys. Lett. B 102, 13 (1981)
M.S. Lasakov et al., Nucl. Instrum. Methods Phys. Res. A 545, 301 (2005)
G. Rogel, Développement de détecteurs de neutrons ultra-froids et dun système danalyse de polarisation pour la mesure du moment dipolaire électrique du neutron, PhD thesis, Université de Caen/Basse-Normandie (2009)
F. Atchison et al., Nucl. Instrum. Methods Phys. Res. A 552, 513 (2005)
V. Hélaine, Mesure du moment dipolaire électrique du neutron: analyse simultanée de spin et analyse préliminaire de données, PhD thesis, Université de Caen/Basse-Normandie (2014)
M. Burghoff, Progress Report, PSI Proposal R-05-03.1, pp. 21--23
A. Abragam, Principles of Nuclear Magnetism (Oxford Science Publication, 1961)
R.L. Gamblin, T.R. Carver, Phys. Rev. A 138, 946 (1965)
A. Steyerl et al., Phys. Rev. C 86, 065501 (2012)
G. Ban et al., Nucl. Instrum. Methods Phys. Res. A 611, 280 (2009)
T. Lefort, A 6Li doped scintillators based detector for ultracold neutrons, in preparation
D. Etasse, B. Carniol, C. Fontbonne, J.M. Fontbonne, J. Hommet, H. Plard, J. Poincheval, T. Charentré, D. Cussol, Faster, http://faster.in2p3.fr/
A.P. Serebrov et al., Nucl. Instrum. Methods Phys. Res. A 357, 503 (1995)
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by R.K. Bhandari
Rights and permissions
About this article
Cite this article
Afach, S., Ban, G., Bison, G. et al. A device for simultaneous spin analysis of ultracold neutrons. Eur. Phys. J. A 51, 143 (2015). https://doi.org/10.1140/epja/i2015-15143-7
Received:
Accepted:
Published:
DOI: https://doi.org/10.1140/epja/i2015-15143-7