Browsing by Author "Whittem, RN"
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- ItemCondensed tables for x-ray fluorescence analysis(Australian Atomic Energy Commission, 1966-05) Brockman, RH; Whittem, RNCondensed tables of 20 angles are provided which are simpler to use for many applications than the comprehensive tables already available.
- ItemThe determination of oxygen in metals using an impulse heating furnace equipped with a sample transfer lock.(Australian Atomic Energy Commission, 1975-05) Dale, LS; de Jong, S; Kelly, JW; Whittem, RNAn impulse heating furnace has been constructed for the determination of low levels of oxygen down to 100 µg g-1 in metals. The furnace is equipped with a sample transfer lock which permits samples to be loaded into outgassed crucibles in a helium atmosphere. As a result, blank levels in the range 2 to 3 µg oxygen are obtained; the modification also results in shorter sample processing time. The apparatus is described, and its suitability for oxygen determinations at these levels has been verified by comparison of results obtained on reference and analysed materials.
- ItemDetermination of the thermal neutron capture cross section of Samarium-148.(Australian Atomic Energy Commission, 1968-03) Whittem, RNThe thermal neutron capture cross section of 148Sm has been measured by mass spectrometer abundance measurements before and after irradiation of an isotopically enriched sample of 148Sm. A value of 4.73 + 0.11 barns was found.
- ItemEstimation of traces of oxygen and nitrogen in helium by mass spectrometry.(Australian Atomic Energy Commission, 1960-01) Piper, RH; Whittem, RNMass spectrometer analysis of helium for traces of oxygen and nitrogen may be made using figures for the relative ionisation efficiency of the pure gases.
- ItemTables of correction factors for use in the peak/background ratio method of x-ray spectrochemical analysis(Australian Atomic Energy Commission, 1971-06) Champion, KP; Whittem, RNThe tables provide factors for the Kα lines of elements Z23 to Z42.