Hyperfine Interactions

, Volume 173, Issue 1–3, pp 181–193

A new Channeltron-detector setup for precision mass measurements at ISOLTRAP

  • C. Yazidjian
  • K. Blaum
  • R. Ferrer
  • F. Herfurth
  • A. Herlert
  • L. Schweikhard
Article

Abstract

Recent technical developments at ISOLTRAP include the design, installation and characterization of a new Channeltron-detector setup in order to increase the detection efficiency by about a factor of 3. Since a detection efficiency close to 100% is reached, true single-ion experiments can be performed for the first time and exotic nuclides further away from the valley of stability with lower production yields and/or shorter half-lives as compared to previous investigations are accessible.

Keywords

Ion detection Mass spectrometry 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Bollen, G., Becker, S., Kluge, H.-J., König, M., Moore, R.B., Otto, T., Raimbault-Hartmann, H., Savard, G., Schweikhard, L., Stolzenberg, H., ISOLDE Collaboration: ISOLTRAP: a tandem Penning trap system for accurate on-line mass determination of short-lived isotopes. Nucl. Instrum. Methods A 368, 675–697 (1996)Google Scholar
  2. 2.
    Herfurth, F., Ames, F., Audi, G., Beck, D., Blaum, K., Bollen, G., Kellerbauer, A., Kluge, H.-J., Kuckein, M., Lunney, D., Moore, R.B., Oinonen, M., Rodríguez, D., Sauvan, E., Scheidenberger, C., Schwarz, S., Sikler, G., Weber, C., ISOLDE Collaboration: Mass measurements and nuclear physics – recent results from ISOLTRAP. J. Phys. B 36, 931–939 (2003)Google Scholar
  3. 3.
    Kugler, E.: The ISOLDE facility. Hyperfine Interact 129, 23–42 (2000)CrossRefADSGoogle Scholar
  4. 4.
    Schweikhard, L., Bollen, G. (eds.): Ultra-accurate mass spectrometry and related topics (special issue). In: International Journal of Mass Spectrometry, 251, 2/3. Elsevier, Amsterdam (2006)Google Scholar
  5. 5.
    Blaum, K.: High-accuracy mass spectrometry with stored ions. Phys. Rep. 425, 1–78 (2006)CrossRefADSGoogle Scholar
  6. 6.
    Gräff, G., Kalinowsky, H., Traut, J.: A direct determination of the proton electron mass ratio. Z. Phys. A 297, 35–39 (1980)CrossRefGoogle Scholar
  7. 7.
    König, M., Bollen, G., Kluge, H.-J., Otto, T., Szerypo, J.: Quadrupole excitation of stored ion motion at the true cyclotron frequency. Int. J. Mass Spectrom. 142, 95–116 (1995)CrossRefGoogle Scholar
  8. 8.
    Kellerbauer, A.: Recent improvements of ISOLTRAP: absolute mass measurements of exotic nuclides at 10 − 8 precision. Int. J. Mass Spectrom. 229, 107–115 (2003)CrossRefGoogle Scholar
  9. 9.
    Blaum, K., Audi, G., Beck, D., Bollen, G., Herfurth, F., Kellerbauer, A., Kluge, H.-J., Sauvan, E., Schwarz, S.: The masses of 32Ar and 33Ar for fundamental tests. Phys. Rev. Lett. 91, 260801 (2003)CrossRefADSGoogle Scholar
  10. 10.
    Kellerbauer, A., Audi, G., Beck, D., Blaum, K., Bollen, G., Brown, B.A., Delahaye, P., Guénaut, C., Herfurth, F., Kluge, H.-J., Lunney, D., Schwarz, S., Schweikhard, L., Yazidjian, C.: Direct mass measurements on the superallowed emitter 74Rb and its daughter 74Kr: Isospin-symmetry-breaking correction for Standard-Model tests. Phys. Rev. Lett. 93, 72502 (2004)CrossRefADSGoogle Scholar
  11. 11.
    Savard, G., St. Becker,, Bollen, G., Kluge, H.-J., Moore, R.B., Otto, T., Schweikhard, L., Stolzenberg, H., Wiess, U.: A new cooling technique for heavy ions in a Penning trap. Phys. Lett. A 158, 247–252 (1991)CrossRefADSGoogle Scholar
  12. 12.
    Brehm, B., Grosser, J., Ruscheinski, T., Zimmer, M.: Absolute detection efficiencies of a microchannel plate detector for ions. Meas. Sci. Technol. 6, 953–958 (1995)CrossRefADSGoogle Scholar
  13. 13.
    Oberheide, J., Wilhelms, P., Zimmer, M.: New results on the absolute ion detection efficiencies of a micro channel plate. Meas. Sci. Technol. 8, 351–354 (1997)CrossRefADSGoogle Scholar
  14. 14.
    BURLE: Channeltron™ Electron Multiplier Handbook for mass Spectrometry. http://www.burle.com/cgi-bin/byteserver.pl/pdf/ChannelBook.pdf (2001)
  15. 15.
    Daly, N.R.: Scintillation type mass spectrometer ion detector. Rev. Sci. Instrum. 31, 264–267 (1960)CrossRefADSGoogle Scholar
  16. 16.
    LLC Idaho: National Engineering & Environnemental Laboratory, SimIon 7.0w-Win NT 05/09/2000 Copyright Bechtel BWXT Idaho (1999)Google Scholar
  17. 17.
    Particle Data Group,: Particle Data Group: Experimental methods and colliders. Phys. Lett. B 592, 235–274 (2004)CrossRefADSGoogle Scholar
  18. 18.
    Philips Semiconductors. Data sheet: 1N4150-1N4151; High-speed diodes (1999)Google Scholar

Copyright information

© Springer Science+Business Media B.V. 2007

Authors and Affiliations

  • C. Yazidjian
    • 1
    • 2
  • K. Blaum
    • 3
  • R. Ferrer
    • 3
  • F. Herfurth
    • 1
  • A. Herlert
    • 2
  • L. Schweikhard
    • 4
  1. 1.GSIDarmstadtGermany
  2. 2.Physics DepartmentCERNGeneva 23Switzerland
  3. 3.Institute of PhysicsJohannes Gutenberg-UniversityMainzGermany
  4. 4.Institute of PhysicsErnst-Moritz-Arndt-UniversityGreifswaldGermany

Personalised recommendations