LABORATORI NAZIONALI DI LEGNARO
Tri-University-Meson-Facility (TRIUMF) is Canada’s national laboratory for particle and nuclear physics, located in Vancouver, British Columbia. The 500MeV, H-, sector-focused cyclotron has been operational since 1974, delivering multiple proton beams to as many as three primary beamlines simultaneously. The high-current, primary meson production beamline (1A) has operated at a nominal 140μA cw, of 500MeV beam with over 90% of scheduled beam delivered for the last 31 years. Two production target stations on beamline 1A are routinely serviced by remote handling procedures with conventional shielded flask, crane transport and hot cell service. An overview is given of the evolution of handling concepts, and details of the design, developed for the new Radioactive Ion Beams facility at TRIUMF. This facility, operational since 1998, utilizes the Isotopic Separation On Line (ISOL) method to produce RIB, for TRIUMF Isotope Separation and ACceleration (TRIUMF-ISAC). From the beginning of this project remote handling was fundamental in the concept, design, construction and operation of the RIB production target stations. Based on over twenty years of experience with remote handling of meson production targets an inclusive concept of safe and rapid routine handling of radioactive targets and the containment of potentially large amounts of mobile radioactivity was developed. ISAC target stations are located in a shielded building, inclusive with the hot cells facility, and accessed vertically by a remote operated overhead crane. Target/Ion sources and beam transport components are combined on individual, dedicated purpose modules designed with the fundamental concepts for remote service.

DATA: 20-07-2005

Sito Collegato : http://www.lnl.infn.it/~seminari/2005/20_Lug_05_bis1.htm