On-line commissioning of SHIPTRAP

S. M. Wahidur Rahaman , M. Block , D. Ackermann , D. Beck , A. Chaudhuri , S. Eliseev , H. Geissel , D. Habs , F. Herfurth , F.P. Hessberger , S. Hofmann , G. Marx , M. Mukherjee , J.B. Neumayr , M. Petrick , W.R. Plass , W. Quint , C. Rauth , D. Rodriguez (1) , C. Scheidenberger , L. Schweikhard , P.G. Thirolf , C. Weber

1 LPCC - Laboratoire de physique corpusculaire de Caen

The on-line commissioning of the Penning-trap mass spectrometer SHIPTRAP was successfully completed with a mass measurement of holmium and erbium radionuclides produced at SHIP. A large fraction of contaminant ions created in the stopping cell was identified to originate from the buffer-gas supply system. Using a liquid nitrogen cold trap they were reduced to a tolerable amount and mass measurements of $^{147}$Er, $^{148}$Er, and $^{147}$Ho with relative uncertainties of about 1 × 10$^{−6}$ were performed.

Domaines: Physique Nucléaire Expérimentale [nucl-ex]

S. M. Wahidur Rahaman, M. Block, D. Ackermann, D. Beck, A. Chaudhuri, et al.. On-line commissioning of SHIPTRAP. International Journal of Mass Spectrometry, 2006, 251, pp.146-151. ⟨10.1016/j.ijms.2006.01.049⟩. ⟨in2p3-00070877⟩