Published 2021 | Version v1
Book Metadata-only

A neutron depolarization measurement of single crystal Fe by using a 3He neutron spin filter and magnetic super-mirrors

Creators

  • 1. Japan Atomic Energy Agency (JAEA), J-PARC Center, Tokai, Ibaraki (Japan)

Description

We have been developing a 3He neutron spin filter for efficient utilization of pulsed neutrons at J-PARC MLF. We performed the demonstrative study of a polarized-neutron diffraction measurement of single crystal Fe with our developed 3He spin filter as the polarizer at BL18 in J-PARC MLF. The observed flipping ratio of the Bragg peak was much lower than that was expected. Therefore, we have performed a depolarization experiment of neutrons transmitted through the sample at BL10. As the result, severe neutron depolarization was found to occur on the neutrons with corresponding wavelength when they transmit through the sample. By taking the depolarization effect into account, the observed low flipping ratio of the Bragg peak could be well understood. (author)

Availability note (English)

Available from DOI: https://doi.org/10.7566/JPSCP.33.011096
Part of:
Proceedings of the 3rd J-PARC Symposium (J-PARC2019)

Additional details

Identifiers

DOI
10.7566/JPSCP.33.011096;

Publishing Information

Publisher
Physical Society of Japan
Imprint Place
Tokyo (Japan)
ISBN
978-4-89027-146-7
Imprint Title
Proceedings of the 3rd J-PARC Symposium (J-PARC2019)
Imprint Pagination
[934 p.]
Journal Page Range
p. 011096.1-011096.6

Conference

Title
3. J-PARC symposium
Acronym
J-PARC2019
Dates
23-27 Sep 2019
Place
Tsukuba, Ibaraki (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
53064318
Subject category
S43: PARTICLE ACCELERATORS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ACCELERATOR EXPERIMENTAL FACILITIES; BRAGG CURVE; DEPOLARIZATION; HELIUM 3; J-PARC; MAGNETIC FIELDS; MAGNETIZATION; NEUTRON BEAMS; NEUTRON DIFFRACTION; NEUTRON DIFFRACTOMETERS; NUCLEAR MAGNETIC RESONANCE; PERMANENT MAGNETS; POLARIZATION; SOLENOIDS; SPIN
Descriptors DEC
ANGULAR MOMENTUM; BEAMS; COHERENT SCATTERING; DIAGRAMS; DIFFRACTION; DIFFRACTOMETERS; ELECTRIC COILS; ELECTRICAL EQUIPMENT; EQUIPMENT; EVEN-ODD NUCLEI; HELIUM ISOTOPES; INFORMATION; ISOTOPES; LIGHT NUCLEI; MAGNETIC RESONANCE; MAGNETS; MEASURING INSTRUMENTS; NUCLEI; NUCLEON BEAMS; PARTICLE BEAMS; PARTICLE PROPERTIES; RESONANCE; SCATTERING; STABLE ISOTOPES

Optional Information

Notes
10 refs., 6 figs., 2 tabs.