David Haider successfully passed his PhD viva

Published on 27 July 2023

AVA Fellow David Haider, based at the Beam Instrumentation group at GSI, Darmstadt, successfully completed his PhD thesis on ‘Ultra-sensitive Beam Intensity Measurements’.

During his project, David helped develop a Cryogenic Current Comparator (CCC) which allows non-destructive intensity monitoring of (anti)particles in storage rings and transfer lines with great precision, which benefits a wide range of areas from an improved control during antimatter production to a new level of online dose monitoring in radiation therapy.

As part of this work David introduced an absolute DC beam current measurement for beam intensities below 100 nA that are stored at the low energy storage ring CRYRING. At the end of his project he helped install the CCC at CRYRING which was followed by a successful first beam time.

This system now acts as the prototype for several installations in the upcoming Facility for Antiproton and Ion Research (FAIR).

David’s project was carried out within the AVA network, supervised by Dr Thomas Sieber (GSI) and Dr Peter Forck (GSI).