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Cooling of short-lived, radioactive, highly charged ions with the TITAN cooler Penning trap. Status and perspectives

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Simon,  Vanessa V.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;
Ruprecht-Karls-Universität;

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Simon, V. V., Delheij, P., Dilling, J., Ke, W., Shi, W., & Gwinner, G. (2011). Cooling of short-lived, radioactive, highly charged ions with the TITAN cooler Penning trap. Status and perspectives. Hyperfine Interactions, 199(1-3), 151-159. doi:10.1007/s10751-011-0309-5.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0012-1834-E
Abstract
TITAN is an on-line facility dedicated to precision experiments with short-lived radioactive isotopes, in particular mass measurements. The achievable resolution on mass measurement, which depends on the excitation time, is limited by the half life of the radioactive ion. One way to bypass this is by increasing the charge state of the ion of interest. TITAN has the unique capability of charge-breeding radioactive ions using an electron-beam ion trap (EBIT) in combination with Penning trap mass spectrometry. However, the breeding process leads to an increase in energy spread, ΔE, which in turn negatively influences the mass uncertainty. We report on the development of a cooler Penning trap which aims at reducing the energy spread of the highly charged ions prior to injection into the precision mass measurement trap. Electron and proton cooling will be tested as possible routes. Mass selective cooling techniques are also envisioned.