  We give a detailed description of an electrospray ion source test bench and a
single-pass setup for ion fragmentation studies at the DESIREE infrastructure
at Stockholm University. This arrangement allows for collision induced
dissociation experiments at center-of-mass energies between 10 eV and 1 keV.
Charged fragment are analyzed with respect to their kinetic energies (masses)
by means of an electrostatic energy analyzer with a wide angular acceptance and
adjustable energy resolution.
