Production and trapping of radioactive atoms at the TRIμP facility

E. Traykov, U. Dammalapati, S. De, O. C. Dermois, L. Huisman, K. Jungmann, W. Kruithof, A. J. Mol, C. J.G. Onderwater, A. Rogachevskiy, M. da Silva e Silva, M. Sohani, O. Versolato, L. Willmann, H. W. Wilschut

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


The structures for the TRIμP facility have been completed and commissioned. At the facility radioactive nuclides are produced to study fundamental interactions and symmetries. An important feature is the possibility to trap radioactive atoms in order to obtain and hold a pure substrate-free sample for precision measurements. In the TRIμP facility a production target is followed by a magnetic separator, where radioactive isotopes are produced in inverse reaction kinematics. Separation up to 99.95% could be achieved for 21Na. A novel transmitting thermal ionizing device was developed to stop the energetic isotopes. Some 50% of stopped 21Na could be extracted and transported as low energy singly charged ions into a radio frequency quadrupole cooler and buncher with 35% transmission efficiency. The ions are transported lossless via a drift tube and a low energy electrostatic beam line into the experimental setup. Such ions can be neutralized on hot metal foils and the resulting atoms can be stored in a magneto-optical trap. The functioning of that principle was demonstrated with stable Na extracted from the thermal ionizer, radioactive beams will follow next.

Original languageEnglish
Pages (from-to)4532-4536
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Issue number19-20
Publication statusPublished - 2008 Oct
Externally publishedYes


  • 23.40.Bw
  • 25.70.-z
  • 29.27.Eg
  • 29.30.Aj
  • 37.10.Gh
  • 37.10.Rs
  • 41.75.-i
  • Atomic trapping
  • Magnetic separator
  • Radioactive ion beam
  • Thermal ionizer

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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