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An experimental investigation of M-subshell fluorescence yields and of the L/sub 1/-L/sub 3/ radiative transition in neptunium and curium from the radioactive decays of /sup 241/Am and /sup 249/Cf

Technical Report ·
OSTI ID:6605051
The construction and performance of a wall-less multiwire proportional counter (MWPC) is described. The absolute emission rate of M x rays from a /sup 241/Am source was measured with the MWPC and with a single-wire proportional counter and a value of (6.35 +- 0.60) x 10/sup -2/ M x rays per decay, or (0.470 +- 0.045) M x rays per L/sub ..cap alpha../ x ray is obtained. High resolution Ge(Li) and Si(Li) x-ray spectrometers and the multiwire proportional counter (MWPC) were used for measuring coincidences, respectively, between various L x rays and the M x rays of neptunium (Z = 93) from a /sup 241/Am source. In addition, M x rays of curium from a /sup 249/Cf source were measured with a Si(Li) detector in coincidence with various K and L x rays detected with a Ge(Li) spectrometer. 81 refs., 24 figs., 23 tabs.
Research Organization:
Georgia Inst. of Tech., Atlanta (USA). School of Nuclear Engineering
DOE Contract Number:
AS05-76ER03346
OSTI ID:
6605051
Report Number(s):
DOE/ER/03346-70; ORO-3346-70; ON: DE87007995
Country of Publication:
United States
Language:
English

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