Determination of /sup 238/Pu and /sup 241/Am in /sup 239/Pu by a. cap alpha. -spectrometry
The ..cap alpha..-spectrum tailing function used for the determination of /sup 238/Pu//sup 239/Pu and /sup 241/Pu in plutonium isotopic mixtures is described. The ..cap alpha..-ratio of /sup 238/Pu to /sup 239 +240/Pu is determined from sources purified by anion exchange. The ..cap alpha..-ratio of /sup 238/Pu + /sup 241/Am to /sup 239 +240/Pu ..cap alpha..-ratio is found by difference and converted to atom parts per million by application of the /sup 239/Pu//sup 240/Pu isotopic ratio as determined by mass spectrometry. The validity of the method has been verified by analysis of Standard Reference Materials of the US National Bureau of Standards over a period of 5-1/2 years. These analyses enable us to establish the effective purification dates of SRM 946 (10 Apr 70), SRM 947 (26 Sep 70), and SRM 948 (6 Jul 62).
- Research Organization:
- Monsanto Research Corp., Miamisburg, OH (USA). Mound
- DOE Contract Number:
- AC04-76DP00053
- OSTI ID:
- 6348140
- Report Number(s):
- MLM-3061(OP); CONF-830539-1; ON: DE83011208
- Country of Publication:
- United States
- Language:
- English
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400103* -- Radiometric & Radiochemical Procedures-- (-1987)
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
ALPHA SPECTROSCOPY
AMERICIUM 241
AMERICIUM ISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
HEAVY NUCLEI
ISOTOPE RATIO
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
PLUTONIUM 238
PLUTONIUM 239
PLUTONIUM ISOTOPES
RADIOISOTOPES
SPECTROSCOPY
YEARS LIVING RADIOISOTOPES