Status and Outlook of CHIP-TRAP: the Central Michigan University High Precision Penning Trap

Matthew Redshaw; Richard A. Bryce; Paul Hawks; Nadeesha D. Gamage; Curtis Hunt; Rathnayake M. E. B. Kandegedara; Ishara S. Ratnayake; Lance Sharp

doi:10.1016/j.nimb.2016.02.018

arXiv · 1510.07203

Status and Outlook of CHIP-TRAP: the Central Michigan University High Precision Penning Trap

Matthew Redshaw·Richard A. Bryce·Paul Hawks·Nadeesha D. Gamage·Curtis Hunt·Rathnayake M. E. B. Kandegedara·Ishara S. Ratnayake·Lance Sharp

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Abstract

At Central Michigan University we are developing a high-precision Penning trap mass spectrometer (CHIP-TRAP)that will focus on measurements with long-lived radioactive isotopes. CHIP-TRAP will consist of a pair of hyperbolic precision-measurement Penning traps, and a cylindrical capture/filter trap in a 12 T magnetic field. Ions will be produced by external ion sources, including a laser ablation source, and transported to the capture trap at low energies enabling ions of a given m=q ratio to be selected via their time-of-flight. In the capture trap, contaminant ions will be removed with a mass-selective rf dipole excitation and the ion of interest will be transported to the measurement traps. A phase-sensitive image charge detection technique will be used for simultaneous cyclotron frequency measurements on single ions in the two precision traps, resulting in a reduction in statistical uncertainty due to magnetic field fluctuations.

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Matthew Redshaw, Richard A. Bryce, Paul Hawks, Nadeesha D. Gamage, Curtis Hunt, Rathnayake M. E. B. Kandegedara, Ishara S. Ratnayake, Lance Sharp. 2015-10-25. Status and Outlook of CHIP-TRAP: the Central Michigan University High Precision Penning Trap. https://doi.org/10.1016/j.nimb.2016.02.018

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