{"id":{"repo_id":"freiburg-diss","oai_identifier":"oai:freidok.uni-freiburg.de:11"},"canonical_url":"https://search.dev.ndltd.org/etd/freiburg-diss/oai:freidok.uni-freiburg.de:11","repository":{"repo_id":"freiburg-diss","name":"University of Freiburg","base_url":"https://freidok.uni-freiburg.de/oai/oai2.php"},"display":{"title":"Studies on Ageing and Reanimation of Drift Tubes for the ATLAS Muon Spectrometer","abstract":"The drift tubes of the ATLAS muon spectrometer are expected to accumulate charges of <br>up to 0.6 C/cm wire during ten years of operation. Five drift gases were developed for <br>the drift tubes and tested in various ageing setups. The influence of the drift gas on <br>the ageing performance was studied. Also the gas flow, additives to the drift gas, cathode <br>coating, cathode cleanliness, irradiation rate and high voltage were varied to determine <br>their influence on the ageing performance. <br>Furthermore, a technique for reanimation of inefficient drift tubes was developed, which <br>enables safe reanimation of drift tubes with minimal effort. This technique is also suitable <br>for cathode cleaning and noise curing.","abstract_html":"The drift tubes of the ATLAS muon spectrometer are expected to accumulate charges of &lt;br&gt;up to 0.6 C/cm wire during ten years of operation. Five drift gases were developed for &lt;br&gt;the drift tubes and tested in various ageing setups. The influence of the drift gas on &lt;br&gt;the ageing performance was studied. Also the gas flow, additives to the drift gas, cathode &lt;br&gt;coating, cathode cleanliness, irradiation rate and high voltage were varied to determine &lt;br&gt;their influence on the ageing performance. &lt;br&gt;Furthermore, a technique for reanimation of inefficient drift tubes was developed, which &lt;br&gt;enables safe reanimation of drift tubes with minimal effort. This technique is also suitable &lt;br&gt;for cathode cleaning and noise curing.","abstract_has_math":false,"creators":["Paschhoff, Volker"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Herten, Gregor"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":null,"date_issued":"","date_published":null,"updated_at":"2026-07-24T02:21:24Z","subjects":["Reanimation","Gasmischungen","ageing","sputtering","reanimation, drift chamber","auger-spectroscopy"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://freidok.uni-freiburg.de/data/11","outbound_label":"Repository record","outbound_source":"source_url"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Herten, Gregor"]},{"key":"dc:creator","label":"Author","values":["Paschhoff, Volker"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:type","label":"Dc Type","values":["DoctoralThesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Reanimation","Gasmischungen","ageing","sputtering","reanimation, drift chamber","auger-spectroscopy"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The drift tubes of the ATLAS muon spectrometer are expected to accumulate charges of <br>up to 0.6 C/cm wire during ten years of operation. Five drift gases were developed for <br>the drift tubes and tested in various ageing setups. The influence of the drift gas on <br>the ageing performance was studied. Also the gas flow, additives to the drift gas, cathode <br>coating, cathode cleanliness, irradiation rate and high voltage were varied to determine <br>their influence on the ageing performance. <br>Furthermore, a technique for reanimation of inefficient drift tubes was developed, which <br>enables safe reanimation of drift tubes with minimal effort. This technique is also suitable <br>for cathode cleaning and noise curing."]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Studies on Ageing and Reanimation of Drift Tubes for the ATLAS Muon Spectrometer"]}]}],"canonical_facts":{"dc:contributor":["Herten, Gregor"],"dc:creator":["Paschhoff, Volker"],"dc:description.abstract":["The drift tubes of the ATLAS muon spectrometer are expected to accumulate charges of <br>up to 0.6 C/cm wire during ten years of operation. Five drift gases were developed for <br>the drift tubes and tested in various ageing setups. The influence of the drift gas on <br>the ageing performance was studied. Also the gas flow, additives to the drift gas, cathode <br>coating, cathode cleanliness, irradiation rate and high voltage were varied to determine <br>their influence on the ageing performance. <br>Furthermore, a technique for reanimation of inefficient drift tubes was developed, which <br>enables safe reanimation of drift tubes with minimal effort. This technique is also suitable <br>for cathode cleaning and noise curing."],"dc:format.medium":["application/pdf"],"dc:subject":["Reanimation","Gasmischungen","ageing","sputtering","reanimation, drift chamber","auger-spectroscopy"],"dc:title":["Studies on Ageing and Reanimation of Drift Tubes for the ATLAS Muon Spectrometer"],"dc:type":["DoctoralThesis"]},"updated_at":"2026-07-24T02:21:24Z"}