Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Boroxol ring dissolution in molten and glassy B2O3 by neutron and x-ray diffraction difference methods.

The Journal of chemical physics·2025
Same author

Hydrogen Bonding in Amorphous Indomethacin.

Pharmaceutics·2024
Same author

The structure of molten calcium ferrite under various redox conditions.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2023
Same author

X-ray Diffraction of Water in Polyvinylpyrrolidone.

Molecular pharmaceutics·2023
Same author

Boron coordination change in barium borate melts and glasses and its contribution to configurational heat capacity, entropy, and fragility.

The Journal of chemical physics·2023
Same author

A High Energy X-ray Diffraction Study of Amorphous Indomethacin.

Journal of pharmaceutical sciences·2021

Related Experiment Video

Updated: Apr 1, 2026

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

12.9K

Note: Detector collimators for the nanoscale ordered materials diffractometer instrument at the Spallation Neutron

A Tamalonis1, J K R Weber1, J C Neuefeind2

  • 1Materials Development, Inc., Arlington Heights, Illinois 60004, USA.

The Review of Scientific Instruments
|October 3, 2015
PubMed
Summary

Neutron collimators made from High Density PolyEthylene (HDPE) and borated HDPE significantly improve signal-to-background ratios and reduce secondary scattering at the NOMAD instrument. These advancements enhance neutron scattering data quality for materials research.

More Related Videos

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
10:24

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor

Published on: May 7, 2021

2.9K
Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

13.5K

Related Experiment Videos

Last Updated: Apr 1, 2026

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2
11:27

Studying Soft-matter and Biological Systems over a Wide Length-scale from Nanometer and Micrometer Sizes at the Small-angle Neutron Diffractometer KWS-2

Published on: December 8, 2016

12.9K
Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
10:24

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor

Published on: May 7, 2021

2.9K
Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle
15:06

Measurement of Scattering Nonlinearities from a Single Plasmonic Nanoparticle

Published on: January 3, 2016

13.5K

Area of Science:

  • Neutron scattering
  • Materials science
  • Instrument development

Background:

  • Neutron scattering experiments require precise control of the neutron beam.
  • Secondary scattering and low signal-to-background ratios can compromise experimental data quality.
  • Optimizing neutron optics is crucial for advancing materials characterization.

Purpose of the Study:

  • To evaluate the performance of novel neutron collimator designs.
  • To quantify improvements in signal-to-background ratio and reduction of secondary scattering.
  • To assess the impact of collimator depth and material on neutron scattering measurements.

Main Methods:

  • Construction and testing of five distinct neutron collimator designs.
  • Utilizing High Density PolyEthylene (HDPE) and 5% borated HDPE as collimator materials.
  • Measurements conducted at the nanoscale ordered materials diffractometer (NOMAD) instrument.

Main Results:

  • All tested collimators successfully improved the signal-to-background ratio.
  • Signal-to-background ratio enhancements ranged from approximately 1.6 to 2.7 across different Q-ranges and collimator depths.
  • Significant reduction in secondary scattering was observed with collimator installation, particularly at Q ∼ 9.5 Å(-1).

Conclusions:

  • Neutron collimators, particularly those made from HDPE and borated HDPE, are effective in enhancing neutron scattering data quality.
  • Deeper collimators (100 mm) demonstrated greater improvements in signal-to-background ratio compared to shallower ones (50 mm).
  • The implementation of these collimators offers a practical solution for improving measurements at neutron scattering facilities like NOMAD.