Schottky Mass Spectrometry at the ESR with a new data acquisition system

Falch, M.; Lo¨bner, K. E. G.; Kerscher, Th.; Attallah, F.; Bosch, F.; Franzke, B.; Geissel, H.; Hausmann, M.; Klepper, O.; Kluge, H.; Kozhuharov, C.; Mu¨nzenberg, G.; Nolden, F.; Novikov, Y.; Patyk, Z.; Radon, T.; Scheidenberger, C.; Steck, M.; Winkler, M.; Wollnik, H.
June 2000
AIP Conference Proceedings;2000, Vol. 512 Issue 1, p263
Academic Journal
Schottky Mass Spectrometry turned out to be an excellent tool for systematic nuclear mass measurements. The newly developed data acquisition system [1] which yields several advantages for the data analysis, was used for the first time in Nov. 1997. Instead of online Fourier transformation as in former measurements [2,3] the signal is now digitized with a sampling rate of 640 kHz (16 bits of resolution) and stored as time-captures. With a continuous data rate of 1.2MB/s nearly 1TB of raw data were stored. The Fast Fourier Transformation offline analysis allows the study of the dynamical behavior of the stored ions in the ESR including cooling forces and decay. The new spectra contain enough reference nuclei to determine the deviations from the constant momentum compaction factor α[sub p]. © 2000 American Institute of Physics.


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