Article ID Journal Published Year Pages File Type
1829942 Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 2008 9 Pages PDF
Abstract
The relative energy stability of Van de Graaff type ion accelerators is typically limited to some 10-4. An inexpensive possibility to improve this situation was developed at the Forschungszentrum Dresden-Rossendorf. The method refers to the relatively stable periodic pattern of the acceleration voltage fluctuation in such accelerators. Future values of that fluctuation can be predicted with a high degree of certainty and can taken into account in the belt generator control in spite of the belt convolution caused fundamental reaction delay. The microcontroller based implementation of a “predictive fluctuation compensation” improves the relative acceleration voltage short time stability by a factor of 3-6 to well below 10-4.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Instrumentation
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