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26–30 Jun 2022
Riva del Garda, Italy
Europe/Rome timezone

Detection of MeV electrons using a charge integrating hybrid pixel detector

29 Jun 2022, 17:12
1m
Palavela (Riva del Garda)

Palavela

Riva del Garda

Poster Poster

Speaker

Erik Fröjdh (Paul Scherrer Institut)

Description

Electrons are emerging as a strong complement to X-rays for diffraction based studies. In this paper we investigate the performance of a JUNGFRAU [1] detector with 320 um thick silicon sensor at a pulsed electron source [2]. Originally developed for X-ray detection at free electron lasers, JUNGFRAU features a dynamic range of 120 MeV/pixel (implemented with in-pixel gain switching) which translated to about 1200 incident electrons per pixel and
frame in the MeV region.

We preset basic characteristics such as energy deposited per incident particle (Figure 1), resulting cluster size and spatial resolution along with dynamic (intensity) range scans. Measurements were performed at 4, 10 and 20 MeV/c. We compare the measurements with GEANT4 [3] based simulations and extrapolate the results to different sensor thicknesses using these simulations.

[1] A. Mozzanica et al., Characterization results of the JUNGFRAU full scale readout ASIC JINST 11 (2016)
[2] D. Angal-Kalinin et al, Design, specifications, and first beam measurements of the compact linear accelerator for research and applications front end, Phys. Rev. Accel. Beams 23, (2020)
[3] S. Agostinelli et al, Geant4—a simulation toolkit NIMA 506 (2003)

Primary author

Erik Fröjdh (Paul Scherrer Institut)

Co-authors

Aldo Mozzanica (Paul Scherrer Institut) Anna Bergamaschi Bernd Schmitt (Paul Scherrer Institut) Davide Mezza (Paul Scherrer Institut) Dominic Greiffenberg (Paul Scherrer Institut) Filippo Baruffaldi (Paul Scherrer Institut) J Zhang (Paul Scherrer Institut) Julian Heymes (Paul Scherrer Institut) Julian McKenzie Maria Carulla (Paul Scherrer Institut) Marie Andrae (Paul Scherrer Institut) Rasmus Ischebek (Paul Scherrer Institut) Roberto Dinapoli (Paul Scherrer Institut) Sabina Chiriotti (Paul Scherrer Institut) Storm Mathisen (Science and Technology Facilities Council) Viktoria Hinger (Paul Scherrer Institut)

Presentation materials

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