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Pocket sensitivity calibration of multicollector mass spectrometers
Authors:R Fiedler and D Donohue
Institution:(1) Safeguards Analytical Laboratory (Seibersdorf), International Atomic Energy Agency, Wagramerstrasse 5, P.O.Box 100, A-1400 Vienna, Austria
Abstract:Summary A method is described for the calibration of multicollector mass spectrometers. The instruments are used for nuclear application and equipped with 9 fixed collector pockets. To obtain all required information two solutions have been prepared one for uranium containing U-233, U-235, U-236 and U-238 with an approximate composition of 2ratio1ratio1ratio1 and the other for plutonium containing Pu-239, Pu-240, Pu-242 and Pu-244 with an approximate composition of 3ratio1ratio3ratio2. The spectrum was shifted by one and two mass units on both sides of the normal position and the ion intensities collected. These data have been used for the calculation of the relative sensitivity of the pockets involved.
Kalibrierung von Multikollektor-Massenspektrometern
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