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Physical Society ColloquiumThe TITAN system at TRIUMF, precision experiments employing ion traps on-lineJens DillingTRIUMFThe TITAN (Triumf's Ion Trap for Atomic and Nuclear science) system was proposed last year to employ a combination of a linear Paul (or RF) trap, an Electron Beam Ion Trap (EBIT), and a Penning trap system, with the main goal to carry out precision mass measurements on short-lived exotic isotopes at ISAC. Penning traps have been used for over a decade as mass spectrometers at on-line facilities, and have generated an ample variety of important atomic mass data. In general, a relative precision of dm/m ~ 10-7 could be reached. However, often mass data with relative precision of 10-8 are needed, particularly for Standard Model tests, CKM matrix unitarity checks and for specific cases in nuclear astrophysics. In order to fulfil the precision requirements, particularly on the short-lived (t1/2 ~ 50 ms) isotopes available from ISAC, TITAN's mass measurements will be carried out on highly charged ions, charge state boosted in the EBIT. This unique combination of ion traps will enhance the achievable precision by over an order of magnitude. TITAN has received funding this fiscal year and is presently in the initial set-up phase. The talk will cover the physics motivation and the system and techniques involved and will give the present status.
Friday, April 2nd 2004, 15:30
Ernest Rutherford Physics Building, Keys Auditorium (room 112) |