Measurements and second-order calculations of the Eindhoven beam transport system

Abstract

The horizontal and vertical emittances of the extracted beam from the Eindhoven A.V.F. cyclotron have been measured for different particle energies and yields <25 mm mrad. These areas have been used for linear calculations of beam properties through the beam transport system is doubly achromatic and dispersive modes of operation. The results are compared with measurements. For the 45° bending magnets non-linear effects have been extracted from orbit integrations and comparison is made with the theoretical estimations of the second-order coefficients. These increase the ΔE/ E value calculated by the linear approximation by 0.02%. This implies that with entrance and exit slit widths of 0.5% mm an analysed beam of 2 μA out of 100 μA with an energy spread of 0.05% fwhm is obtainable.