Design and performance of the Lamb-shift polarimeter

A new compact low-energy polarimeter has been designed, developed and put into operation, based on the principle of Lamb-shift polarimetry. Here, we focus on ion-beam deceleration (14–35 kV to 500 V) and the polarimeterʹs magnetic field. The determination of the optimal setting of oven temperature and the DC gradient in the spin-filter will be presented and illustrated with some measurements. Further, performance of the polarized ion source will be shown by some typical measurements on proton and deuteron beams with the polarimeter.