A polarizing neutron periscope for neutron imaging

Michael Schulz; Peter Böni; Elbio Calzada; Martin Mühlbauer; Andreas Neubauer; Burkhard Schillinger

doi:10.1016/j.nima.2009.01.125

A polarizing neutron periscope for neutron imaging

Michael Schulz, Peter Böni, Elbio Calzada, Martin Mühlbauer, Andreas Neubauer, Burkhard Schillinger

Natural Sciences

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Optical neutron polarizers like guides or benders destroy the collimation of a neutron beam due to multiple reflections or scattering. This makes them unsuitable for their use in polarized neutron radiography, because the beam collimation is essential to obtain high spatial resolution. We have developed a neutron polarizer based on the principle of an optical periscope with a zigzag double reflection on two parallel high-m supermirror polarizers. If the supermirrors are perfectly parallel and flat, the beam collimation is left unchanged by such a device. A first proof of concept version of this type of polarizer was built and tested. We expect to achieve a beam polarization of up to 99% with an improved version yet to be built.

Original language	English
Pages (from-to)	43-46
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	605
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nima.2009.01.125
State	Published - 21 Jun 2009

Keywords

Neutron optics
Neutron radiography
Periscope
Polarized neutrons

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10.1016/j.nima.2009.01.125

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title = "A polarizing neutron periscope for neutron imaging",

abstract = "Optical neutron polarizers like guides or benders destroy the collimation of a neutron beam due to multiple reflections or scattering. This makes them unsuitable for their use in polarized neutron radiography, because the beam collimation is essential to obtain high spatial resolution. We have developed a neutron polarizer based on the principle of an optical periscope with a zigzag double reflection on two parallel high-m supermirror polarizers. If the supermirrors are perfectly parallel and flat, the beam collimation is left unchanged by such a device. A first proof of concept version of this type of polarizer was built and tested. We expect to achieve a beam polarization of up to 99% with an improved version yet to be built.",

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T1 - A polarizing neutron periscope for neutron imaging

AU - Schulz, Michael

AU - Böni, Peter

AU - Calzada, Elbio

AU - Mühlbauer, Martin

AU - Neubauer, Andreas

AU - Schillinger, Burkhard

PY - 2009/6/21

Y1 - 2009/6/21

N2 - Optical neutron polarizers like guides or benders destroy the collimation of a neutron beam due to multiple reflections or scattering. This makes them unsuitable for their use in polarized neutron radiography, because the beam collimation is essential to obtain high spatial resolution. We have developed a neutron polarizer based on the principle of an optical periscope with a zigzag double reflection on two parallel high-m supermirror polarizers. If the supermirrors are perfectly parallel and flat, the beam collimation is left unchanged by such a device. A first proof of concept version of this type of polarizer was built and tested. We expect to achieve a beam polarization of up to 99% with an improved version yet to be built.

AB - Optical neutron polarizers like guides or benders destroy the collimation of a neutron beam due to multiple reflections or scattering. This makes them unsuitable for their use in polarized neutron radiography, because the beam collimation is essential to obtain high spatial resolution. We have developed a neutron polarizer based on the principle of an optical periscope with a zigzag double reflection on two parallel high-m supermirror polarizers. If the supermirrors are perfectly parallel and flat, the beam collimation is left unchanged by such a device. A first proof of concept version of this type of polarizer was built and tested. We expect to achieve a beam polarization of up to 99% with an improved version yet to be built.

KW - Neutron optics

KW - Neutron radiography

KW - Periscope

KW - Polarized neutrons

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A polarizing neutron periscope for neutron imaging

Abstract

Keywords

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