Amir Salehi Lashkajani successfully completes PhD

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QUASAR Amir Salehi Lashkajani successfully passed his PhD defence on the 2nd of August 2022, with Prof. Tim Greenshaw and Dr Pavel Karataev (RHUL) as his examiners.  

The development of particle colliders at the energy frontier has necessitated research into new methods to diagnose the accelerated beams. In particular, non-invasive beam monitoring techniques are highly sought after as they enable online monitoring of the beam properties without affecting accelerator operation or vacuum quality. Amir’s research focused on the design and optimisation of a novel beam profile monitoring technique for the Hollow Electron Lens (HEL) project of the Large Hadron Collider (LHC). This technique utilises the supersonic gas curtain technology and beam-induced fluorescence and is minimally invasive to the accelerated beam and the surrounding vacuum environment.  

This project was a collaborative effort between the Cockcroft Institute, University of Liverpool, CERN and GSI. On the basis of this work, two additional monitors became part of the baseline design of the High Luminosity upgrade of the LHC (HL-LHC). His results have demonstrated the applicability of this monitor to a wide range of high-intensity, high-power accelerators, thus establishing a versatile new beam monitoring method.  

Amir was supervised by Dr Hao Zhang and by Prof Carsten P. Welsch from the University of Liverpool / Cockcroft Institute.