AustralieFrV1, Main, Exploration, bibRecord, 009D48

New solid state polarizing bender for cold neutrons

Identifieur interne : 009D48 ( Main/Exploration ); précédent : 009D47; suivant : 009D49

New solid state polarizing bender for cold neutrons

Auteurs : A. Stunault [France] ; K. H. Andersen [France] ; S. Roux [France] ; T. Bigault [France] ; K. Ben-Saidane [France] ; H. M. R Nnow [Suisse]

Source :

Physica. B, Condensed matter [ 0921-4526 ] ; 2006.

RBID : Pascal:07-0217109

Descripteurs français

Pascal (Inist)
- Méthode Monte Carlo, Faisceau neutron, Performance, Neutron polarisé, Déflexion faisceau, Spectromètre neutron, 2930H.

English descriptors

KwdEn :
- Beam deflection, Monte Carlo methods, Neutron beams, Neutron spectrometers, Performance, Polarized neutron.

Abstract

A new S-shaped polarizing bender has been built and tested at the ILL. This compact polarizer, designed using Monte Carlo simulations, consists of a stack of silicon wafers, coated on both sides with a polarizing supermirror and an absorbing layer. Due to the S-shape of the bending, the beam does not change direction on passing through the polarizer. It is ideally suited for cold neutron beams, as shown by the performances measured on the 3-axis spectrometer IN14 at ILL (wavelength 2.4 to 6 A). A transmission of 60-70% of the selected spin state was obtained. Accurate measurements of the degree of polarization of the transmitted beam, using a highly polarized ³ He cell show the high quality of this new device, with polarization efficiency between 98% and 99%.

Affiliations:

Links toward previous steps (curation, corpus...)

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Le document en format XML

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<front><div type="abstract" xml:lang="en">A new S-shaped polarizing bender has been built and tested at the ILL. This compact polarizer, designed using Monte Carlo simulations, consists of a stack of silicon wafers, coated on both sides with a polarizing supermirror and an absorbing layer. Due to the S-shape of the bending, the beam does not change direction on passing through the polarizer. It is ideally suited for cold neutron beams, as shown by the performances measured on the 3-axis spectrometer IN14 at ILL (wavelength 2.4 to 6 A). A transmission of 60-70% of the selected spin state was obtained. Accurate measurements of the degree of polarization of the transmitted beam, using a highly polarized <sup>3</sup>
 He cell show the high quality of this new device, with polarization efficiency between 98% and 99%.</div>
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New solid state polarizing bender for cold neutrons

New solid state polarizing bender for cold neutrons

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri