TRIUMF Annular Chamber for Tracking and Identification of Charged Particles

TACTIC is a cylindrical ionization chamber being developed to measure the differential cross section of astrophysically relevant reactions covering a large angle region. The gas-filled cylinder with anode pads on the walls allows a reconstuction of the reaction ejectile tracks and therefore a good separation between wanted and unwanted events. New technology has been incorporated into the design, practical experience is being gained from running a test chamber, and an organisation is being setup to construct the chamber.