SAMOP 2023 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 7: Poster
MS 7.6: Poster
Donnerstag, 9. März 2023, 16:30–19:00, Empore Lichthof
MOCCA: a 4k-pixel molecule camera for the position and energy resolved detection of neutral molecule fragments — •Daniel Kreuzberger1, Christian Enss1, Andreas Fleischmann1, Lisa Gamer2, Loredana Gastaldo1, Christopher Jakob2, Ansgar Lowack1, Oldřich Novotný2, Andreas Reifenberger1, Dennis Schulz1, and Andreas Wolf2 — 1Heidelberg University — 2Max Planck Institute for Nuclear Physics, Heidelberg
The MOCCA detector is a 4k-pixel high-resolution molecule camera based on metallic magnetic calorimeters and read out with SQUIDs that is able to detect neutral molecule fragments with keV kinetic energies. It will be deployed at the Cryogenic Storage Ring CSR at the Max Planck Institute for Nuclear Physics in Heidelberg, a storage ring built to prepare and store molecular ions in their rotational and vibrational ground states, enabling studies on electron-ion interactions. To reconstruct the reaction kinematics, MOCCA measures the energy and position of incident particles on the detector, even with multiple particles hitting the detector simultaneously.
We present a new read-out scheme which uses only 32 SQUID channels for the 4096 pixels of the detector as well as some new fabrication details including copper-filled through-wafer vias to heat-sink the detector to the wafer backside. In addition we present the results of first characterization measurements.