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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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BWXT starts building Pele microreactor core
Fabrication of the reactor core for the 1.5-MW Project Pele demonstration microreactor has begun, according to BWX Technologies. Pele is being developed at the BWXT Innovation Campus in Lynchburg, Va., for the U.S. Department of Defense’s Strategic Capabilities Office.
C. Roecker, N. S. Bowden, G. Carosi, M. Heffner, I. Jovanovic
Nuclear Technology | Volume 180 | Number 2 | November 2012 | Pages 231-240
Technical Paper | Radiation Measurements and General Instrumentation | doi.org/10.13182/NT12-A14636
Articles are hosted by Taylor and Francis Online.
Directional detection of fast neutrons emitted by special nuclear materials can be performed with a time projection chamber. This device permits particle identification and full three-dimensional reconstruction of charged-particle tracks produced by interaction of fast neutrons in the chamber active volume. Single-recoil-proton reconstruction allows rapid pointing, while the reconstruction of two recoil protons produced by a single incident neutron event can enable a measurement with very high angular resolution. Kinematic reconstruction algorithms for both of these cases are presented and their performance assessed using data generated by a simple Monte Carlo simulation and experimental data where those exist. The simulation data are also used to estimate the relative efficiency of both neutron imaging modalities as a function of the volume and pressure of the time projection chamber.