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Development of a gas-jet coupled ISOL facility with a /sup 252/Cf spontaneous fission source

Conference ·
OSTI ID:6085692
A mass separator at the INEL has been successfully coupled on-line to a source of /sup 252/Cf fission products via a He-gas jet transport arrangement using solid aerosols of NaCl as activity carriers. Initial tests of the ISOL system on-line to an approx. 7 ..mu..g /sup 252/Cf source were conducted using gamma-ray spectroscopic measurements of the separated /sup 138,139/Cs, /sup 141,142/Ba and /sup 142/La activities. The measured transport efficiencies through the system of approx. 3% and approx. 0.3% for the Cs and Ba isotopes, respectively, are comparable with the results of earlier tests conducted at INEL with a hollow-cathode ion source alone coupled to the He-gas jet transport arrangement. Following these tests, a general survey of the mass-separated activities was conducted with the ISOL system online to an approx. 600 ..mu..g source of /sup 252/Cf. Gross ..beta..-..gamma.. activity was measured for samples collected at 73 mass positions. Gamma-ray spectra were measured with a Ge(Li) detector for 29 of the mass positions. These survey experiments demonstrated the production of significant fission product activity in mass regions which are not available at other ISOL facilities.
Research Organization:
EG and G Idaho, Inc., Idaho Falls (USA)
DOE Contract Number:
AC07-76ID01570
OSTI ID:
6085692
Report Number(s):
EGG-M-02681; CONF-810649-13; ON: DE81028100
Country of Publication:
United States
Language:
English