Precise mass measurements of exotic nuclei--the SHIPTRAP Penning trap mass spectrometer

Journal Article · Fri Nov 30 04:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2827277· OSTI ID:21039482

Herfurth, F; Ackermann, D; Block, M; Dworschak, M; Eliseev, S; Hessberger, F; Hofmann, S; Kluge, H -J; Maero, G; Martin, A; Mazzocco, M; Rauth, C; Vorobjev, G ^[1]; Blaum, K; Ferrer, R; Neidherr, D ^[2]; Chaudhuri, A; Marx, G; Schweikhard, L ^[3]; Neumayr, J ^[4]

---

1. GSI, Planckstrasse 1, 64291 Darmstadt (Germany)
2. Institut fuer Physik, Johannes Gutenberg-Universitaet, 55099 Mainz (Germany)
3. Institut fuer Physik, Ernst-Moritz-Arndt-Universitaet, 17489 Greifswaid (Germany)
4. Department fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, 85748 Garching (Germany)

The SHIPTRAP Penning trap mass spectrometer has been designed and constructed to measure the mass of short-lived, radioactive nuclei. The radioactive nuclei are produced in fusion-evaporation reactions and separated in flight with the velocity filter SHIP at GSI in Darmstadt. They are captured in a gas cell and transfered to a double Penning trap mass spectrometer. There, the cyclotron frequencies of the radioactive ions are determined and yield mass values with uncertainties {>=}4.5{center_dot}10{sup -8}. More than 50 nuclei have been investigated so far with the present overall efficiency of about 0.5 to 2%.

• OSTI ID: 21039482
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 961; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CYCLOTRON FREQUENCY
IONS
MASS SPECTROMETERS
NUCLEAR REACTION YIELD
NUCLEAR STRUCTURE
NUCLEI
TRAPS