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Title: 3D-printed B4C collimation for neutron pressure cells

Abstract

A design for an incident-beam collimator for the Paris–Edinburgh pressure cell is described here. This design can be fabricated from reaction-bonded B4C but also through fast turnaround, inexpensive 3D-printing. 3D-printing thereby also offers the opportunity of composite collimators whereby the tip closest to the sample can exhibit even better neutronic characteristics. Here, we characterize four such collimators: one from reaction-bonded B4C, one 3D-printed and fully infiltrated with cyanoacrylate, a glue, one with a glue-free tip, and one with a tip made from enriched 10B4C. The collimators are evaluated on the Spallation Neutrons and Pressure Diffractometer of the Spallation Neutron Source and the Wide-Angle Neutron Diffractometer at the High Flux Isotope Reactor, both at Oak Ridge National Laboratory. This work clearly shows that 3D-printed collimators perform well and also that composite collimators improve performance even further. Beyond use in the Paris–Edinburgh cell, these findings also open new avenues for collimator designs as clearly more complex shapes are possible through 3D printing. An example of such is shown here with a collimator made for single-crystal samples measured inside a diamond anvil cell. These developments are expected to be highly advantageous for future experimentation in high pressure and other extreme environments and evenmore » for the design and deployment of new neutron scattering instruments.« less

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office
OSTI Identifier:
1819591
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 92; Journal Issue: 9; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Haberl, Bianca, Molaison, Jamie, Frontzek, Matthias D., Novak, Eric, Granroth, Garrett E., Goldsby, Desarae, Anderson, David C., and Elliott, Amy M.. 3D-printed B4C collimation for neutron pressure cells. United States: N. p., 2021. Web. https://doi.org/10.1063/5.0055095.
Haberl, Bianca, Molaison, Jamie, Frontzek, Matthias D., Novak, Eric, Granroth, Garrett E., Goldsby, Desarae, Anderson, David C., & Elliott, Amy M.. 3D-printed B4C collimation for neutron pressure cells. United States. https://doi.org/10.1063/5.0055095
Haberl, Bianca, Molaison, Jamie, Frontzek, Matthias D., Novak, Eric, Granroth, Garrett E., Goldsby, Desarae, Anderson, David C., and Elliott, Amy M.. Thu . "3D-printed B4C collimation for neutron pressure cells". United States. https://doi.org/10.1063/5.0055095.
@article{osti_1819591,
title = {3D-printed B4C collimation for neutron pressure cells},
author = {Haberl, Bianca and Molaison, Jamie and Frontzek, Matthias D. and Novak, Eric and Granroth, Garrett E. and Goldsby, Desarae and Anderson, David C. and Elliott, Amy M.},
abstractNote = {A design for an incident-beam collimator for the Paris–Edinburgh pressure cell is described here. This design can be fabricated from reaction-bonded B4C but also through fast turnaround, inexpensive 3D-printing. 3D-printing thereby also offers the opportunity of composite collimators whereby the tip closest to the sample can exhibit even better neutronic characteristics. Here, we characterize four such collimators: one from reaction-bonded B4C, one 3D-printed and fully infiltrated with cyanoacrylate, a glue, one with a glue-free tip, and one with a tip made from enriched 10B4C. The collimators are evaluated on the Spallation Neutrons and Pressure Diffractometer of the Spallation Neutron Source and the Wide-Angle Neutron Diffractometer at the High Flux Isotope Reactor, both at Oak Ridge National Laboratory. This work clearly shows that 3D-printed collimators perform well and also that composite collimators improve performance even further. Beyond use in the Paris–Edinburgh cell, these findings also open new avenues for collimator designs as clearly more complex shapes are possible through 3D printing. An example of such is shown here with a collimator made for single-crystal samples measured inside a diamond anvil cell. These developments are expected to be highly advantageous for future experimentation in high pressure and other extreme environments and even for the design and deployment of new neutron scattering instruments.},
doi = {10.1063/5.0055095},
journal = {Review of Scientific Instruments},
number = 9,
volume = 92,
place = {United States},
year = {2021},
month = {9}
}

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