Cryogenic Target Complex of the FAIR Accelerator and Prospects for Its Development

Abstract

The FAIR-PANDA target complex is currently based on two types of targets, a cluster cryogenic target and a cryogenic monodisperse target. Both types of targets in experiments with hydrogen and its isotopes, as well as in experiments with heavier gases, are able to provide a required density of matter at the point of interaction with a beam. The advantages of a cryogenic monodisperse target are the possibility of operation in both the high resolution (PTR) and high luminosity (PTH) modes, the absence of leakage into the interaction chamber, and the possibility of a precise reconstruction for the process of interaction with a beam. These advantages, in our opinion, make this target more promising for the PANDA physical programs. The important goals attained as a result of studies on the prospects for the further development of monodisperse targets are as follows: the possibility of creating high-speed monodisperse targets of small diameter from different cryogenic liquids with a speed of target introduction into a beam >100 m/s alongside supercold cryogenic targets has been shown.