eprintid: 29810
rev_number: 18
eprint_status: archive
userid: 5868
dir: disk0/00/02/98/10
datestamp: 2021-06-29 15:20:36
lastmod: 2021-07-22 09:23:10
status_changed: 2021-06-29 15:20:36
type: doctoralThesis
metadata_visibility: show
creators_name: Schulz, Dennis Patrick
title: Development and characterization of MOCCA, a 4k-pixel molecule camera for the energy-resolved detection of neutral molecule fragments
subjects: ddc-530
divisions: i-130700
adv_faculty: af-13
abstract: The MOCCA detector is a 64x64-pixel molecule camera with an active area of 4.5 cm x 4.5 cm, developed for the energy-resolved detection of neutral molecule fragments at kinetic energies up to 300 keV at the Cryogenic Storage Ring (CSR) at the Max Planck Institute for Nuclear Physics, Heidelberg. Its principle is based on metallic magnetic calorimeters (MMCs): an energy deposition in the detector leads to an increase in temperature, resulting in a change in magnetization of a paramagnetic sensor, which can be measured with a SQUID. This thesis presents the detector design, the cleanroom processing and the developed cryogenic and electronic platform to operate the detector. To ensure a good thermalization over the complete detector, a process to produce gold-filled through-wafer vias was optimized and used. In characterization measurements, the full functionality of the readout system of MOCCA is presented. In measurements with 5.9 keV X-ray photons, an energy resolution of 88 eV is demonstrated. With the results obtained in this thesis, MOCCA fulfills all requirements for the challenging experiments planned at CSR, presently making it the largest and most complex operational MMC-type detector array.
date: 2021
id_scheme: DOI
id_number: 10.11588/heidok.00029810
ppn_swb: 1764147502
own_urn: urn:nbn:de:bsz:16-heidok-298103
date_accepted: 2021-05-05
advisor: HASH(0x55e0f7f27b28)
language: eng
bibsort: SCHULZDENNDEVELOPMEN2021
full_text_status: public
place_of_pub: Heidelberg
citation:   Schulz, Dennis Patrick  (2021) Development and characterization of MOCCA, a 4k-pixel molecule camera for the energy-resolved detection of neutral molecule fragments.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/29810/7/DennisSchulz_PhDthesis_MOCCA.pdf