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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-1466
DTSTART:20090302T220000Z
DURATION:PT1H0M0S
DTSTAMP:20260506T190755Z
LAST-MODIFIED:20090224T195547Z
LOCATION:5310 Chamberlin
SUMMARY:High-Precision Single-Ion Penning Trap Mass Spectrometry\, Ato
 mic Seminar\, Matthew Redshaw\, Florida State University
DESCRIPTION:The development of single-ion Penning trap techniques duri
 ng the 1980s and the refinement of these techniques over the past two 
 decades has enabled atomic mass comparisons with fractional precisions
  of ~0.1 - 0.01 parts-per-billion. During six years of operation\, the
  Florida State University Penning trap has produced over 20 of the wor
 ld's most precisely known atomic masses\, and two measurements of dipo
 le moments of molecular ions\, with application to a wide range of fie
 lds including determination of fundamental constants\, metrology\, neu
 trino physics\, nuclear physics\, molecular spectroscopy and molecular
  structure.<br>
\n<br>
\nIn this talk I will describe the FSU Penning 
 trap system and the unique techniques employed\, including phase coher
 ent cyclotron frequency measurement via image charge detection\, and t
 he implementation of a technique in which the two ions whose cyclotron
  frequencies are to be compared are simultaneous confined in the trap.
URL:https://www.physics.wisc.edu/events/?id=1466
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