Optimising neutron polarizers - Measuring the flipping ratio and related quantities

D. J. Goossens; L. D. Cussen

doi:10.1016/S0168-9002(01)01348-1

Optimising neutron polarizers - Measuring the flipping ratio and related quantities

D. J. Goossens, L. D. Cussen^*

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

The continuing development of gaseous spin polarized ³He transmission filters for use as neutron polarizers makes the choice of optimum thickness for these filters an important consideration. The "quality factors" derived for the optimisation of transmission filters for particular measurements are general to all neutron polarizers. In this work optimisation conditions for neutron polarizers are derived and discussed for the family of studies related to measuring the flipping ratio from samples. The application of the optimisation conditions to ³He transmission filters and other types of neutron polarizers is discussed. Absolute comparisons are made between the effectiveness of different types of polarizers for this sort of work.

Original language	English
Pages (from-to)	475-492
Number of pages	18
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	481
Issue number	1-3
DOIs	https://doi.org/10.1016/S0168-9002(01)01348-1
Publication status	Published - 1 Apr 2002

Access to Document

10.1016/S0168-9002(01)01348-1

Cite this

@article{d0ea2db1643941f59aa8ffce3c92258b,

title = "Optimising neutron polarizers - Measuring the flipping ratio and related quantities",

abstract = "The continuing development of gaseous spin polarized 3He transmission filters for use as neutron polarizers makes the choice of optimum thickness for these filters an important consideration. The {"}quality factors{"} derived for the optimisation of transmission filters for particular measurements are general to all neutron polarizers. In this work optimisation conditions for neutron polarizers are derived and discussed for the family of studies related to measuring the flipping ratio from samples. The application of the optimisation conditions to 3He transmission filters and other types of neutron polarizers is discussed. Absolute comparisons are made between the effectiveness of different types of polarizers for this sort of work.",

keywords = "Neutron polarizers, Neutron scattering instrumentation, Spin flip fraction",

author = "Goossens, {D. J.} and Cussen, {L. D.}",

year = "2002",

month = apr,

day = "1",

doi = "10.1016/S0168-9002(01)01348-1",

language = "English",

volume = "481",

pages = "475--492",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier B.V.",

number = "1-3",

}

TY - JOUR

T1 - Optimising neutron polarizers - Measuring the flipping ratio and related quantities

AU - Goossens, D. J.

AU - Cussen, L. D.

PY - 2002/4/1

Y1 - 2002/4/1

N2 - The continuing development of gaseous spin polarized 3He transmission filters for use as neutron polarizers makes the choice of optimum thickness for these filters an important consideration. The "quality factors" derived for the optimisation of transmission filters for particular measurements are general to all neutron polarizers. In this work optimisation conditions for neutron polarizers are derived and discussed for the family of studies related to measuring the flipping ratio from samples. The application of the optimisation conditions to 3He transmission filters and other types of neutron polarizers is discussed. Absolute comparisons are made between the effectiveness of different types of polarizers for this sort of work.

AB - The continuing development of gaseous spin polarized 3He transmission filters for use as neutron polarizers makes the choice of optimum thickness for these filters an important consideration. The "quality factors" derived for the optimisation of transmission filters for particular measurements are general to all neutron polarizers. In this work optimisation conditions for neutron polarizers are derived and discussed for the family of studies related to measuring the flipping ratio from samples. The application of the optimisation conditions to 3He transmission filters and other types of neutron polarizers is discussed. Absolute comparisons are made between the effectiveness of different types of polarizers for this sort of work.

KW - Neutron polarizers

KW - Neutron scattering instrumentation

KW - Spin flip fraction

UR - http://www.scopus.com/inward/record.url?scp=0036535403&partnerID=8YFLogxK

U2 - 10.1016/S0168-9002(01)01348-1

DO - 10.1016/S0168-9002(01)01348-1

M3 - Article

SN - 0168-9002

VL - 481

SP - 475

EP - 492

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1-3

ER -

Optimising neutron polarizers - Measuring the flipping ratio and related quantities

Abstract

Access to Document

Other files and links

Fingerprint

Cite this