The accurate measurement of ion beam dose is a key point of quantitative analytical methods like PIGE, PIXE or RBS. To solve this problem for our Oxford-type scanning nuclear microprobe (SNM), a small-sized compact beam chopper has been developed. Ion beam dose is derived from the observed RBS yield from the surface of a wing after calibrating the yield versus collected charge. The wing is rotated by a stepper motor and is optionally covered with foils made of Al, Ni or Au. The beam chopper is capable to measure ion beam doses for different ions at a wide range of energy and current with a precision in the order of 1%.
|Number of pages||5|
|Journal||Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms|
|Publication status||Published - Mar 2000|
|Event||The 14th International Conference on Ion Beam Analysis - 6th European Conference on Accelerators in Applied Research and Technology - Dresden, Ger|
Duration: Jul 26 1999 → Jul 30 1999
ASJC Scopus subject areas
- Nuclear and High Energy Physics