The PRESPEC liquid-hydrogen target for in-beam gamma spectroscopy of exotic nuclei at GSI

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2014-02, Vol.736, p.81-87
• Main Authors: Louchart, C., Gheller, J.M., Chesny, Ph, Authelet, G., Rousse, J.Y., Obertelli, A., Boutachkov, P., Pietri, S., Ameil, F., Audirac, L., Corsi, A., Dombradi, Z., Gerl, J., Gillibert, A., Korten, W., Mailleret, C., Merchan, E., Nociforo, C., Pietralla, N., Ralet, D., Reese, M., Stepanov, V.
• Format: Article
• Language: English
• Subjects: Absorption; Beams (radiation); Detectors; Energy (nuclear); Gamma spectroscopy; Inverse kinematics; Liquid hydrogen target; Nuclear Experiment; Physics; Radioactive ion beam; Spectrometers; Spectroscopy; Target detection
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/j.nima.2013.10.035

We report on a new liquid hydrogen and deuterium target dedicated to in-beam γ spectroscopy experiments in inverse kinematics at relativistic incident energies at GSI/FAIR. Target thicknesses from 10 to 80mm can be achieved for an effective diameter of 60mm. The target-cell and entrance window are maded of 200μm thick Mylar. The design has the advantage of being free of absorbing material at forward angles and 90°, allowing the detection of photons in a wide angular range. A commissioning experiment with a 54Cr beam at 130MeV/nucleon has been performed at GSI, using the Rare Isotopes INvestigation at GSI (RISING) detectors. The target has been shown to behave as expected and is ready for experiments at fragmentation Radioactive-Ion Beam Facilities. •We report on a new liquid hydrogen target for gamma spectroscopy experiments at FAIR.•A commissioning experiment has been performed at GSI, using the RISING detectors.•The target behaves as expected and is ready for experiments.