Power System Physicist/Engineer for the CMS HGCAL

About this role

Responsibilities

• As Power System Physicist/Engineer for the CMS High-Granularity Calorimeter (HGCAL), you will play a key role in the development, integration, testing and commissioning of the power systems for one of the most innovative particle detectors ever conceived.
• Working within a multinational, multidisciplinary team, you will contribute to the procurement and testing of power supplies for HGCAL detector modules, including low-voltage, high-current supplies for the readout electronics and medium-voltage supplies of up to 800 V for sensor biasing.
• You will also contribute to the integration of power systems with the detector's safety, control and monitoring systems, as well as the testing and implementation of power components such as DC-DC converters, voltage regulation and cabling.
• A key aspect of the role will be to assess the impact of the power system on HGCAL performance and to develop and implement strategies to minimise noise effects such as interference, coupling and ripple.
• This role offers the opportunity to combine strong electrical engineering and detector-physics skills with hands-on involvement in the construction, testing and commissioning of a large-scale, state-of-the-art particle detector.
• Your responsibilities
• Follow the procurement of the power supplies (Low Voltage and Bias Voltage, totalling several MCHF), including carrying out acceptance and stress tests on the delivered units.
• Support the commissioning of these power systems during the mass assembly and testing phases of HGCAL.
• Work with physicists and engineers to evaluate the performance of HGCAL in relation to its power systems and to develop and implement mitigation strategies where possible and necessary, first on the surface and subsequently when HGCAL is installed in CMS, 100 metres underground.
• Work with the HGCAL and central CMS Technical Coordination teams to oversee the installation and testing of the power systems underground in the "Service" and "Experimental" cave