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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Deep geologic repository progress—2025 Update
Editor's note: This article has was originally published in November 2023. It has been updated with new information as of June 2025.
Outside my office, there is a display case filled with rock samples from all over the world. It contains a disk of translucent, orange salt from the Waste Isolation Pilot Plant near Carlsbad, N.M.; a core of white-and-bronze gneiss from the site of the future deep geologic repository in Eurajoki, Finland; several angular chunks of fine-grained, gray claystone from the underground research laboratory at Bure, France; and a piece of coarse-grained granite from the underground research tunnel in Daejeon, South Korea.
L. P. Ku, H. W. Hendel, S. L. Liew, J. D. Strachan
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 418-430
Technical Paper | Experimental Device | doi.org/10.13182/FST91-A29382
Articles are hosted by Taylor and Francis Online.
Accurate determinations of fusion neutron yields on the Tokamak Fusion Test Reactor (TFTR) require that the neutron detectors be absolutely calibrated in situ, using neutron sources of known strengths. For such calibrations, numerical simulations of neutron transport can be powerful tools in the design of experiments and the study of measurement results. On the TFTR, numerical calibration experiments are frequently used to complement actual detector calibrations. Calculational approaches and transport models used in these numerical simulations are presented and the results from a simulation of the calibration of 235U fission detectors carried out in December 1988 are summarized.