# Postdoctoral Research position in Nuclear Physics (HISTARS project) - Universidad Complutense de Madrid The Nuclear Physics Group ([https://ucm.es/gfn](https://ucm.es/gfn)) at Universidad Complutense de Madrid (UCM) is offering a Postdoctoral Research position to support the development of HISTARS, the HIE-ISOLDE Timing Array for Reaction Studies, a highly sensitive detector for measuring lifetimes of nuclear excited states populated in reactions at the HIE-ISOLDE accelerator (ISOLDE, CERN). HISTARS aims at further exploiting the vast possibilities offered by HIE-ISOLDE for research in nuclear structure, nuclear astrophysics and other fields. HISTARS intends to profit from recent developments in instrumentation and electronics, and to take advantage of improvements in digital signal processing, to build a device for the measurement of lifetimes of excited states populated in reactions. State-of-the-art fast scintillator detectors for gamma-ray detection and charged-particle detector with good time response and high-rate capabilities will be employed. The selected applicant will join the diverse and dynamic Nuclear Physics Group at UCM, and play a leading role in the development of the HISTARS device and the associated experimental techniques. The successful candidate is expected to contribute to decay and in-beam spectroscopy research activities, lead future experiments, data analysis and interpretation or results, help to supervise postgraduate students and present results at relevant international conferences and meetings. Applicants should have completed a Ph.D. in nuclear physics or associated fields and have a good understanding of instrumentation for spectroscopy radiation measurements, including fast scintillator and semiconductor detectors, as well as proven experience in designing and analysing nuclear structure experiments. Readiness to travel to CERN and other international laboratories, and the ability to communicate effectively within large transnational collaborations are essential. This post is offered on a fixed-term basis until the end of December 2025, with a gross salary of 35 000 € per annum. The public selection procedure will follow the guidelines defined by Universidad Complutense de Madrid, [https://www.ucm.es/personal-de-apoyo-a-la-investigacion-pai-ucm](https://www.ucm.es/personal-de-apoyo-a-la-investigacion-pai-ucm). For further information please contact Prof. Luis Mario FRAILE at lmfraile@ucm.es or luis.fraile@cern.ch. This browser does not support PDFs. Please download the PDF to view it: Download PDF.