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Title: Study of electron-capture delayed fission in Am-232

Abstract

An automated x-ray-fission coincidence system was designed and constructed by LLNL and Lawrence Berkeley National Laboratory (LBNL) for use inside the Gammasphere high efficiency gamma-ray detector array at LBNL. The x-ray-fission coincidence apparatus detection station consists of two surface barrier detectors (for detection of fission fragments) and two high-purity Ge (HPGe) planar x-ray detectors (for measurement of x-rays and low-energy gamma rays). The detection station is placed inside Gammasphere at the 88-Inch Cyclotron at LBNL and used in conjunction with Gammasphere to measure the x-rays, low-energy gamma-rays and fission fragments resulting from the ECDF process. A series of collaborative experiment between LLNL, LBNL, and LANL utilizing various components of the x-ray-fission coincidence apparatus to measure x-rays and gamma-rays in the decay of a stationary {sup 252}Cf source were performed to test the various components of the x-ray-fission coincidence apparatus. The test experiments have been completed and the data is currently being analyzed by LBNL. Preliminary test results indicate that the system performed better than expected (e.g., the x-ray detectors performed better than expected with no evidence of microphonic noise that would reduce the photon energy resolution).

Authors:
; ;  [1];  [2];  [3]
  1. Lawrence Livermore National Lab., CA (United States)
  2. Univ. of California, Berkeley, CA (United States). Dept. of Nuclear Engineering
  3. Lawrence Berkeley National Lab., CA (United States). Nuclear Science Div.
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
212535
Report Number(s):
UCRL-ID-123450
ON: DE96008314; TRN: 96:010551
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 18 Mar 1996
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 66 PHYSICS; X-RAY DETECTION; HIGH-PURITY GE DETECTORS; FISSION FRAGMENT DETECTION; SURFACE BARRIER DETECTORS; PERFORMANCE TESTING; GAMMA DETECTION; AMERICIUM 232; FISSION; COINCIDENCE METHODS; CALIFORNIUM 252; RADIATION SOURCES; ELECTRON CAPTURE DECAY; DAUGHTER PRODUCTS

Citation Formats

Kreek, S A, Hall, H L, Hoffman, D C, Strellis, D, and Gregorich, K E. Study of electron-capture delayed fission in Am-232. United States: N. p., 1996. Web. doi:10.2172/212535.
Kreek, S A, Hall, H L, Hoffman, D C, Strellis, D, & Gregorich, K E. Study of electron-capture delayed fission in Am-232. United States. https://doi.org/10.2172/212535
Kreek, S A, Hall, H L, Hoffman, D C, Strellis, D, and Gregorich, K E. Mon . "Study of electron-capture delayed fission in Am-232". United States. https://doi.org/10.2172/212535. https://www.osti.gov/servlets/purl/212535.
@article{osti_212535,
title = {Study of electron-capture delayed fission in Am-232},
author = {Kreek, S A and Hall, H L and Hoffman, D C and Strellis, D and Gregorich, K E},
abstractNote = {An automated x-ray-fission coincidence system was designed and constructed by LLNL and Lawrence Berkeley National Laboratory (LBNL) for use inside the Gammasphere high efficiency gamma-ray detector array at LBNL. The x-ray-fission coincidence apparatus detection station consists of two surface barrier detectors (for detection of fission fragments) and two high-purity Ge (HPGe) planar x-ray detectors (for measurement of x-rays and low-energy gamma rays). The detection station is placed inside Gammasphere at the 88-Inch Cyclotron at LBNL and used in conjunction with Gammasphere to measure the x-rays, low-energy gamma-rays and fission fragments resulting from the ECDF process. A series of collaborative experiment between LLNL, LBNL, and LANL utilizing various components of the x-ray-fission coincidence apparatus to measure x-rays and gamma-rays in the decay of a stationary {sup 252}Cf source were performed to test the various components of the x-ray-fission coincidence apparatus. The test experiments have been completed and the data is currently being analyzed by LBNL. Preliminary test results indicate that the system performed better than expected (e.g., the x-ray detectors performed better than expected with no evidence of microphonic noise that would reduce the photon energy resolution).},
doi = {10.2172/212535},
url = {https://www.osti.gov/biblio/212535}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {3}
}