Eur. Phys. J. A (2005) 25: 37-39
https://doi.org/10.1140/epjad/i2005-06-070-8

ENAM 2004

A MISTRAL spectrometer accoutrement for the study of exotic nuclides

CSNSM-IN2P3/CNRS, Université de Paris Sud, F-91405, Orsay, France

^* e-mail: lunney@csnsm.in2p3.fr

Received: 20 December 2004
Accepted: 18 February 2005
Published online: 17 May 2005

Abstract

An ion beam cooler has been constructed to adapt the emittance of the ISOLDE rare isotope beam to the acceptance of the mass spectrometer MISTRAL at CERN. Using ^20,22Ne⁺ beams with an energy of E _beam = 45 keV the transmission through the cooler was measured to be T = 0.25. An analytical model to describe the transmission as a function of the trapping potential is discussed. By fitting this model to the data, the lateral energy distribution of the radially confined ions was determined to be centered at E ₀ = 1.3(1) eV and to have a width of σ_E = 1.6(1) eV.