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Dissertation zugänglich unter
URN: urn:nbn:de:gbv:18-83182
URL: http://ediss.sub.uni-hamburg.de/volltexte/2017/8318/


The cryogenic photon detection system for the ALPS II experiment: characterization, optimization and background rejection

The cryogenic photon detection system for the ALPS II experiment: characterization, optimization and background rejection

Bastidon, Noemie

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 Dokument 1.pdf (17.318 KB) 


Freie Schlagwörter (Englisch): cryogenics , Transition-Edge Sensors , detector , single-photons , Adiabatic Demagnetization Refrigerator
Basisklassifikation: 33.05
Institut: Physik
DDC-Sachgruppe: Physik
Dokumentart: Dissertation
Hauptberichter: Horns, Dieter (Prof. Dr.)
Sprache: Englisch
Tag der mündlichen Prüfung: 12.01.2017
Erstellungsjahr: 2016
Publikationsdatum: 31.01.2017
Kurzfassung auf Englisch: The search for new fundamental bosons at very low mass is the central objective of the ALPS II experiment which is currently set up at the Deutsches-Eleketronen-Synchrotron (Hamburg). This experiment follows the light-shining-through-the-wall concept where photons could oscillate into weakly interacting light bosons in front of a wall and back into photons behind the wall, giving the impression that light can shine through a light tight barrier. In this concept, the background-free detection of near-infrared photons is required to fully exploit the sensitivity of the apparatus.
In this project, a Transition-Edge Sensor operated below 100 mK will be used to detect single photons. Characterizatioon, optimization and background rejection have been studied in depth in order to define if the chosen detector will meet ALPS IIc specifications.

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