Electromagnetic Separator for Radioisotope Investigations

Details are given of the vacuum system, magnet, ion source, electrostatic focusing system and electrical supplies of a 100 cm radius, 90° sector, electromagnetic separator which is now under construction at A.W.R.E., Aldermaston. The machine is designed to produce milligramme quantities of stable isotopes and radioactive isotopes up to 1 millicurie strength. An effort is being made to secure a higher vacuum than has been used in the past, with the principal objects of obtaining a higher resolution and enrichment factor.