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The recovery and study of heavy nuclides produced in a nuclear explosion - the Hutch event

Abstract

During the explosion of the Hutch device, the target ({sup 238}U and {sup 232}Th) was subjected to a very high neutron exposure, 2.4 x 10{sup 25} neutrons /cm{sup 2}. Multiple neutron capture reactions resulted in the production of heavy nuclides, up to and including 257Fm. Results of the search for species with A > 257 were negative. The recovery and chemical processing of kilograms of Hutch debris has resulted in the isolation of 10{sup 10} atoms of 257Fm, which is 10{sup 2} times more material than has been available for experimentation in the past. Experimentally significant amounts of other rare nuclides, e.g., :{sup 254}Cf, {sup 251}Cf, {sup 255}-Es, and {sup 250}Cm, have also been separated from the Hutch debris. The production of these nuclides in thermonuclear explosions is shown to be a valuable supplement to the AEC program for reactor production of transplutonium elements. The neutron flux achieved in Hutch was insufficient to even approach production of nuclides in the region of {sup 298}114. A much more intense neutron flux is required. In future experiments, considerable attention must be given to the problem of adequate sample recovery, in order to properly use the ability to subject targets to an exceedingly  More>>
Authors:
Hoff, R W; Hulet, E K [1] 
  1. Lawrence Radiation Laboratory, University of California, Livermore, CA (United States)
Publication Date:
May 15, 1970
Product Type:
Conference
Report Number:
CONF-700101(vol.2); INIS-XA-N-229
Resource Relation:
Conference: Symposium on engineering with nuclear explosives, Las Vegas, NV (United States), 14-16 Jan 1970; Other Information: 16 refs, 2 figs, 7 tabs; Related Information: In: Symposium on engineering with nuclear explosives. Proceedings. Volume 2, 935 pages.
Subject:
42 ENGINEERING; CALIFORNIUM 251; CALIFORNIUM 254; CAPTURE; CURIUM 250; EINSTEINIUM 255; ELEMENT 114; FERMIUM 257; HEAVY NUCLEI; NEUTRON FLUX; NUCLEAR EXPLOSIONS
OSTI ID:
20768837
Research Organizations:
American Nuclear Society, Hindsdale, IL (United States); United States Atomic Energy Commission (United States)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
TRN: XA04N0908075304
Availability:
Available from INIS in electronic form
Submitting Site:
INIS
Size:
page(s) 1283-1294
Announcement Date:
Sep 23, 2006

Citation Formats

Hoff, R W, and Hulet, E K. The recovery and study of heavy nuclides produced in a nuclear explosion - the Hutch event. IAEA: N. p., 1970. Web.
Hoff, R W, & Hulet, E K. The recovery and study of heavy nuclides produced in a nuclear explosion - the Hutch event. IAEA.
Hoff, R W, and Hulet, E K. 1970. "The recovery and study of heavy nuclides produced in a nuclear explosion - the Hutch event." IAEA.
@misc{etde_20768837,
title = {The recovery and study of heavy nuclides produced in a nuclear explosion - the Hutch event}
author = {Hoff, R W, and Hulet, E K}
abstractNote = {During the explosion of the Hutch device, the target ({sup 238}U and {sup 232}Th) was subjected to a very high neutron exposure, 2.4 x 10{sup 25} neutrons /cm{sup 2}. Multiple neutron capture reactions resulted in the production of heavy nuclides, up to and including 257Fm. Results of the search for species with A > 257 were negative. The recovery and chemical processing of kilograms of Hutch debris has resulted in the isolation of 10{sup 10} atoms of 257Fm, which is 10{sup 2} times more material than has been available for experimentation in the past. Experimentally significant amounts of other rare nuclides, e.g., :{sup 254}Cf, {sup 251}Cf, {sup 255}-Es, and {sup 250}Cm, have also been separated from the Hutch debris. The production of these nuclides in thermonuclear explosions is shown to be a valuable supplement to the AEC program for reactor production of transplutonium elements. The neutron flux achieved in Hutch was insufficient to even approach production of nuclides in the region of {sup 298}114. A much more intense neutron flux is required. In future experiments, considerable attention must be given to the problem of adequate sample recovery, in order to properly use the ability to subject targets to an exceedingly intense time-integrated neutron flux. (author)}
place = {IAEA}
year = {1970}
month = {May}
}