16-21 September 2018
Europe/Zurich timezone

Lessons learned from the success of ISOLTRAP’s MRTOF for a future general-purpose device

18 Sep 2018, 16:45
500/1-201 - Mezzanine (CERN)

500/1-201 - Mezzanine


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Poster Instrumentation for radioactive ion beam experiments Poster Session 2


Frank Wienholtz (CERN)


The multi-reflection time-of-flight mass separator/spectrometer (MR-ToF MS) [1, 2] installed at the ISOLTRAP experiment [3] at ISOLDE at CERN has proven to be a valuable asset, allowing fast identification of the incoming ion beams [4] and selection and transfer of only a certain species to either the Penning-trap section [5], or to other experimental components [6]. The time-of-flight information can also be used to determine the masses of the beam constituents with sufficient precision for many physics topics, such as nuclear structure [7,8,9,10] and astrophysics [5, 11]. In addition to mass spectrometry, the MR-ToF can also provide purified samples for decay spectroscopy [6] or, in combination with the Resonant Ionization Laser Ion Source (RILIS) of ISOLDE, for measurements of nuclear moments and charge radii with background suppression [12, 13]. The fast-identification capabilities also make the MR-ToF a very attractive tool for target and ion source optimization and ion yield determination [14].
The ISOLTRAP MR-ToF MS will be discussed in detail and the idea of a future 30-kV general-purpose MR-ToF MS at ISOLDE will be presented.

[1] R.N. Wolf et al., Int. J. Mass Spectrom. 349-350, 123 (2013).
[2] R.N. Wolf et al., Nucl. Instrum. Meth. A 686, 82 (2012).
[3] G. Mukherjee et al., Eur. Phys. J. A 35, 1 (2008).
[4] S. Kreim et al., Nucl. Instrum. Meth. B 317, 492 (2013).
[5] R.N. Wolf et al., Phys. Rev. Lett. 110, 041101 (2013).
[6] N.A. Althubiti et al., Phys. Rev. C 96, 044325 (2017).
[7] F. Wienholtz et al., Nature 498 346 (2013).
[8] A. Welker et al., Phys. Rev. Lett. 119, 192502 (2017).
[9] V. Manea et al., Phys. Rev. C 8, 054322 (2013).
[10] M. Rosenbusch M et al., Phys. Rev. Lett. 114 202501 (2105).
[11] D. Atanasov et al., Phys. Rev. Lett. 115, 232501 (2015).
[12] B.A. Marsh et al., Nucl. Instrum. Meth. B 317, 550-556 (2013).
[13] J. Cubis et al. Submitted to Phys. Rev. C (2018).
[14] A. Gottberg et al., Nucl. Instrum. Meth. B 336, 143-148 (2014).

Primary author

Frank Wienholtz (CERN)


On behalf of the ISOLTRAP and the ISOLDE collaboration.

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