Yacine Kadi

ISOLDE at CERN

ISOLDEs story begins in 1967, when the first on-line production of radioactive nuclei for experiments took place in a newly provisional way. Almost half a century later, ISOLDE is the oldest experiment still in operation at CERN, and for good reasons: it occupies a leading position in the field of nuclear research, having produced nearly 1300 nuclei of more than 70 elements [1]. Over the years, it has developed into a facility dedicated to fundamental science and its applications. ISOLDEs success can be traced to two key elements. One is the continuous development of new radioactive ion beams and steady improvement of experimental conditions. The other is the vibrant ISOLDE collaboration and researcher community, with their ability to adapt to the changing physics landscape, developing new ideas and devices that allow the continuous production of science at the forefront. Figure 1 shows a 3D layout of the facility.

Beam Commissioning of the HIE-ISOLDE Post-Accelerator

Phase 1a of the High Intensity and Energy ISOLDE (HIE-ISOLDE) project [1] was completed in 2015. The first cryomodule and two High Energy Beam Transfer lines (HEBT) were installed. In addition, many of the subsystems of the normal conducting part of the postaccelerator (REX) were renovated or refurbished. Following the hardware commissioning of the different systems [2] and, in preparation for the start of the physics program, many tests and measurements were conducted as part of the beam commissioning program. The results of these tests and the plan for the next beam commissioning campaign are discussed in this paper.