✦ LIBER ✦

A linear radiofrequency quadrupole ion trap for the cooling and bunching of radioactive ion beams

✍ Scribed by A. Kellerbauer; G. Bollen; J. Dilling; S. Henry; F. Herfurth; H.-J. Kluge; E. Lamour; R.B. Moore; C. Scheidenberger; S. Schwarz; G. Sikler; J. Szerypo

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 70 KB
Volume: 701
Category: Article
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(01)01645-1

No coin nor oath required. For personal study only.

✦ Synopsis

A linear radio-frequency quadrupole ion guide and beam buncher has been installed at the ISOLTRAP mass spectrometry experiment at the ISOLDE facility at CERN. The apparatus is being used as a beam cooling, accumulation, and bunching system. It operates with a buffer gas that cools the injected ions and converts the quasicontinuous 60-keV beam from the ISOLDE facility to 2.5-keV beam pulses with improved normalized transverse emittance. Recent measurements suggest a capture efficiency of the ion guide of up to 40% and a cooling and bunching efficiency of at least 12% which is expected to still be increased. The improved ISOLTRAP setup has so far been used very successfully in three on-line experiments.

📜 SIMILAR VOLUMES

Ion Trajectory Calculations for a Quadru

Ion Trajectory Calculations for a Quadrupole-ion-trap Reflectron-time-of-flight Hybrid Instrument: Effects of the Initial RF-Phase and the Trapping Time on an Ion Bunch Produced from a Molecular Beam

✍ Ulf Wilhelm; Christian Weickhardt; Jürgen Grotemeyer 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 537 KB

SIMION calculations are compared with experimental observations of ion bunch parameters such as average kinetic energy, time-of-flight, and mass resolution as a function of the storage time and the initial phase in the quadrupole ion trap of a trap-reflectron hybrid instrument (TRAPTOF). It is shown

Triple quadrupole linear ion trap mass s

Triple quadrupole linear ion trap mass spectrometer for the analysis of small molecules and macromolecules

✍ Gérard Hopfgartner; Emmanuel Varesio; Viviane Tschäppät; Chantal Grivet; Emmanue 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 233 KB

## Abstract Recently, linear ion traps (LITs) have been combined with quadrupole (Q), time‐of‐flight (TOF) and Fourier transform ion cyclotron resonance (FT‐ICR) mass spectrometery (MS). LITs can be used either as ion accumulation devices or as commercially available, stand‐alone mass spectrometers

Bunching of radioactive ion beam in the

Bunching of radioactive ion beam in the millisecond region — a pulsed gating-potential method in an ion source for on-line isotope separation

✍ Y. Shirakabe; N. Ikeda; S. Ohkawa; T. Nomura; T. Shinozuka 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 349 KB

The acceleration and storage of radioact

The acceleration and storage of radioactive ions for a beta-beam facility

✍ M. Lindroos; T. Nilsson 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 163 KB

Nano electrospray combined with a quadru

Nano electrospray combined with a quadrupole ion trap for the analysis of peptides and protein digests

✍ Roman Körner; Matthias Wilm; Kenneth Morand; Michael Schubert; Matthias Mann 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 756 KB

A new strategy utilizing electrospray io

A new strategy utilizing electrospray ionization-quadrupole ion trap mass spectrometry for the qualitative determination of GnRH peptides

✍ Tanya R. Myers; Gabor Patonay 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 475 KB

## Abstract Numerous forms of the neurotransmitter GnRH have been discovered in vertebrates and invertebrates. Methods used for identification of these peptides are laborious and often require the application of multiple, confirmatory techniques. In this study, we investigate whether HPLC‐MS/MS and