September 29, 2021 to October 1, 2021
Europe/Berlin timezone

Studies of Scintillators Nonproportionality

Oct 1, 2021, 12:40 PM


DESY, Hamburg (online, hybrid/in-person)


Artem Novokshonov (DESY)


For the European XFEL it was decided to use scintillator screens, as the standard diagnostics based on optical transition radiation (OTR) would undergo coherent effects at the machine. LYSO:Ce was chosen as scintillator material. However significantly larger emittances have been measured during the comissioning of the XFEL. Moreover there were measured "smoke-ring" distributions [*] at high bunch charges.The effect is related to the material. Hence several other materials have been chosen for further tests. At first there were number of tests made at the XFEL. Later it was proposed to do the tests at PITZ as one can reach even higher charges. So the talk summs up and demonstrates the main results of the measurements.

  • G. Kube et al., Indentification and Mitigation of Smoke-Ring Effects in Scintillator Based Electron Beam Images at the European XFEL, in Proc. FEL19, Hamburg, 2019, pp. 301-306.

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