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Title: The LLNL rabbit: determination of trace element levels in polyethylene

Journal Article · · Journal of Radioanalytical and Nuclear Chemistry
ORCiD logo [1];  [2];  [2];  [2];  [3];  [3];  [3];  [3];  [3];  [3];  [3]
  1. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Oregon State University
  2. Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
  3. Oregon State University, Corvallis, OR (United States)
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Rabbit facilities are systems that pneumatically transport a sample carrier (known as a rabbit) to and from a radiation source. However, trace impurities in the polyethylene (PE) rabbit may interfere with measurements of short-lived isotopes. Activated impurities with short half-lives as 28Al interfere with the fission product γ-ray, therefore the rabbit cannot be measured immediately. Neutron activation analysis was performed on various PE samples obtained from different manufacturers and the highest quality PE was used to fabricate a high-purity PE rabbit. Here, the impurities identified in the PE study were 27Al, 48Ca, 37Cl, 50Cr, 65Cu, 127I, 26Mg, 55Mn, and 30Si.

Research Organization:
Oregon State University, Corvallis, OR (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
AC52-07NA27344; NA0004072
OSTI ID:
2473147
Journal Information:
Journal of Radioanalytical and Nuclear Chemistry, Journal Name: Journal of Radioanalytical and Nuclear Chemistry Vol. 333; ISSN 0236-5731
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English

References (6)

Determination of trace element levels in polyethylene by instrumental neutron activation analysis journal March 1983
ENDF/B-VIII.0: The 8 th Major Release of the Nuclear Reaction Data Library with CIELO-project Cross Sections, New Standards and Thermal Scattering Data journal February 2018
Comparison of HEU and LEU neutron spectra in irradiation facilities at the Oregon State TRIGA® Reactor journal September 2013
Selection and cleaning of plastic containers for storage of trace element samples journal December 1977
A New Era of Nuclear Criticality Experiments: The First 10 Years of Godiva IV Operations at NCERC journal October 2021
The joint evaluated fission and fusion nuclear data library, JEFF-3.3 journal July 2020

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Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
High density polyethylene
Impurity measurements
Low density polyethylene
Neutron activation analysis
Polyethylene rabbit
Short-lived fission products