A high flux, low energy ion beam facility has been designed, developed and commissioned at the Inter University Accelerator Centre (IUAC), New Delhi. [1, 2]. It mainly consists of a 2.45 GHz microwave ion source, a compact multi-electrode extraction system and an experimental chamber for performing experiments using intense ion beams in the energy range of a few keV to a few tens of keV. Various kinds of experiments have been carried out related to studies in materials sciences and plasma physics. The facility is planned to be upgraded using a compact Wien filter with a mass resolving power (m/m) of ~ 200, assuming slits are positioned at a distance of 100 mm from the exit of the filter. The Wien filter will transmit ions with velocities ranging from 0.97 x 10$^5$ m/sec to 13.83 x 10$^5$ m/sec. The results of beam optics simulations, the detailed design of the Wien filter and beam transport system will be presented.
 N. Kumar, G. Rodrigues, Y. Mathur, S. Ohja, R. Ahuja and D. Kanjilal, Vacuum 124, 55-59 (2016).
 N. Kumar, G. Rodrigues, P. S. Lakshmy, R. Baskaran, Y. Mathur, R. Ahuja and D. Kanjilal, Rev. Sci. Instrum. 85, 02C103 (2014).