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Updated: Mar 19, 2026
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Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
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LENS: A New Pulsed Neutron Source for Research and Education
M Leuschner1, D V Baxter1, J M Cameron1
1Indiana University Cyclotron Facility, 2401 Milo B. Sampson Lane, Bloomington, IN 47408.
Summary
A new pulsed neutron source at Indiana University Cyclotron Facility (IUCF) will provide cold neutrons for research. Its flux is expected to rival established facilities, enabling advanced studies.
Area of Science:
- Nuclear physics
- Materials science
- Condensed matter physics
Background:
- A new pulsed neutron source is being developed at the Indiana University Cyclotron Facility (IUCF).
- Neutron production utilizes (p,n) reactions with a proton beam on a beryllium target.
- A cold methane moderator, operating at or below 20 K, is integrated with the neutron source.
Purpose of the Study:
- To describe the development and capabilities of a new pulsed neutron source.
- To outline the planned experimental instrumentation for the facility.
- To project the performance of the cold neutron flux.
Main Methods:
- Utilizing a low-energy proton beam for (p,n) reactions on a beryllium target.
- Employing a cold methane moderator maintained at cryogenic temperatures (≤20 K).
- Coupling the moderator tightly to the neutron production target.
Main Results:
- The pulsed neutron source is under construction at IUCF.
- The cold neutron flux is anticipated to be comparable to the Intense Pulsed Neutron Source (IPNS).
- Initial experimental capabilities will include small angle neutron scattering (SANS), radiography, and moderator studies.
Conclusions:
- The new IUCF pulsed neutron source will offer significant capabilities for neutron research.
- The facility is expected to provide a competitive cold neutron flux.
- The planned instrumentation will support a range of scientific investigations.
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