Shot-by-shot 250 kHz 3D ion and MHz photoelectron imaging using Timepix3. (13th July 2022)

• Record Type: Journal Article
• Authors: Bromberger, Hubertus; Passow, Christopher; Pennicard, David; Boll, Rebecca; Correa, Jonathan; He, Lanhai; Johny, Melby; Papadopoulou, Christina C; Tul-Noor, Atia; Wiese, Joss; Trippel, Sebastian; Erk, Benjamin; Küpper, Jochen
• Is Part Of: Journal of physics. Volume 55:Number 14(2022)
• Publication Date: 2022-07-13
• Subjects: Timepix3 -- velocity-map-imaging -- VMI -- electron imaging -- time-of-flight -- FLASH -- 3D momentum; Atoms -- Periodicals; Molecules -- Periodicals; Optics -- Periodicals; Nuclear physics -- Periodicals; 539.6
• DOI: 10.1088/1361-6455/ac6b6b
• Languages: English
• ISSNs: 0953-4075

Abstract

Abstract: We demonstrate the application of event-driven Timepix3-based detectors in combination with a double-sided velocity-map-imaging spectrometer to record the full 3D momentum of charged particles at the free-electron-laser facility FLASH. We measured the extreme ultraviolet induced fragmentation of N2 using 250 kHz FLASH bursts with sub-pixel spatial resolution and up to 1.7 ns temporal resolution for photoelectrons. To further demonstrate the capabilities of this camera at even higher repetition rates we measured single-shot images of He(1 s ) photoelectrons for bursts with a repetition rate of 1 MHz. Overall, with the Timepix3 camera we overcome limitations of standard-camera technology for advanced-imaging experiments with requirements on high event-rates and high spatio-temporal resolution.