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MOCCA: a 4k-pixel molecule camera for the position- and energy-resolving detection of neutral molecule fragments at CSR

We present the design of MOCCA, a large-area particle detector that is developed for the position- and energy-resolving detection of neutral molecule fragments produced in electron-ion interactions at the Cryogenic Storage Ring at the Max Planck Institute for Nuclear Physics in Heidelberg. The detec...

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Hauptverfasser: Gamer, Lisa (VerfasserIn) , Schulz, Dennis (VerfasserIn) , Enss, Christian (VerfasserIn) , Fleischmann, Andreas (VerfasserIn) , Gastaldo, Loredana (VerfasserIn) , Kempf, Sebastian (VerfasserIn) , Krantz, C. (VerfasserIn) , Novotný, O. (VerfasserIn) , Schwalm, D. (VerfasserIn) , Wolf, A. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 4 January 2016
In: Journal of low temperature physics
Year: 2016, Jahrgang: 184, Heft: 3, Pages: 839-844
ISSN:1573-7357
DOI:10.1007/s10909-015-1453-0
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s10909-015-1453-0
Volltext
Verfasserangaben:L. Gamer, D. Schulz, C. Enss, A. Fleischmann, L. Gastaldo, S. Kempf, C. Krantz, O. Novotný, D. Schwalm, A. Wolf
Beschreibung
Zusammenfassung:We present the design of MOCCA, a large-area particle detector that is developed for the position- and energy-resolving detection of neutral molecule fragments produced in electron-ion interactions at the Cryogenic Storage Ring at the Max Planck Institute for Nuclear Physics in Heidelberg. The detector is based on metallic magnetic calorimeters and consists of 4096 particle absorbers covering a total detection area of $$44.8\,\mathrm {mm} \times 44.8\,\mathrm {mm}$$44.8mm×44.8mm. Groups of four absorbers are thermally coupled to a common paramagnetic temperature sensor where the strength of the thermal link is different for each absorber. This allows attributing a detector event within this group to the corresponding absorber by discriminating the signal rise times. A novel readout scheme further allows reading out all 1024 temperature sensors that are arranged in a $$32 \times 32$$32×32square array using only $$16+16$$16+16current-sensing superconducting quantum interference devices. Numerical calculations taking into account a simplified detector model predict an energy resolution of $$\Delta E_\mathrm {FWHM} \le 80\,\mathrm {eV}$$ΔEFWHM≤80eVfor all pixels of this detector.
Beschreibung:Gesehen am 07.05.2020
Beschreibung:Online Resource
ISSN:1573-7357
DOI:10.1007/s10909-015-1453-0

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