Uranium daughter growth must not be neglected when adjusting plutonium materials for assay and isotopic contents

Technical Report · Mon Nov 01 00:00:00 EST 1976

DOI:https://doi.org/10.2172/7290865· OSTI ID:7290865

Marsh, S F; Spall, W D; Abernathey, R M; Rein, J E

Relationships are provided to compute the decreasing plutonium content and changing isotopic distribution of plutonium materials for the radioactive decay of /sup 238/Pu, /sup 239/Pu, /sup 240/Pu and /sup 242/Pu to long-lived uranium daughters and of /sup 241/Pu to /sup 241/Am. This computation is important to the use of plutonium reference materials to calibrate destructive and nondestructive methods for assay and isotopic measurements, as well as to accountability inventory calculations.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 7290865
• Report Number(s): LA-6444; TRN: 77-011246
• Country of Publication: United States
• Language: English

Related Subjects

98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION
PLUTONIUM 238
ISOTOPE RATIO
PLUTONIUM 239
PLUTONIUM 240
PLUTONIUM 241
PLUTONIUM 242
AMERICIUM 241
DAUGHTER PRODUCTS
NUCLEAR MATERIALS MANAGEMENT
STANDARDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
AMERICIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HEAVY NUCLEI
ISOTOPES
MANAGEMENT
NUCLEI
ODD-EVEN NUCLEI
PLUTONIUM ISOTOPES
RADIOISOTOPES
YEARS LIVING RADIOISOTOPES
055001* - Nuclear Fuels- Safeguards
Inspection
& Accountability- Technical Aspects