Autoren:	Shah, Rikhav Isleif, Katharina-Sophie Januschek, Friederike Lindner, Axel Schott, Matthias
Titel:	Characterising a single-photon detector for ALPS II
Online-Publikationsdatum:	16-Dez-2022
Erscheinungsdatum:	2022
Sprache des Dokuments:	Englisch
Zusammenfassung/Abstract:	Transition Edge Sensors (TESs) have found widespread application in fundamental studies due to their low background rate, high efficiency, and excellent energy resolution. This makes them suitable candidates for ALPS II, which investigates the existence of new particles (axions and axion-like-particles) which couple very weakly to photons. ALPS II anticipates an extremely low signal rate <10−5 cps (amounting to ∼1–2 photons a day). The detection of these low energy (∼1 eV, 1064 nm) photons with a high energy resolution is necessary for ALPS II. We show that with our TES setup, we can analyze the TES pulses with different methods such as pulse fitting and Principal Component Analysis (PCA). These achieve (using the standard deviation) an energy resolution (ΔE/E) down to ∼8%. The pulse analysis, with a chosen fitting approach, assists also in achieving a very low dark count rate O(10−6) cps for 1064 nm photon signal searches in the TES.
DDC-Sachgruppe:	530 Physik 530 Physics
Veröffentlichende Institution:	Johannes Gutenberg-Universität Mainz
Organisationseinheit:	FB 08 Physik, Mathematik u. Informatik
Veröffentlichungsort:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8335
Version:	Published version
Publikationstyp:	Zeitschriftenaufsatz
Nutzungsrechte:	CC BY
Informationen zu den Nutzungsrechten:	https://creativecommons.org/licenses/by/4.0/
Zeitschrift:	Journal of low temperature physics 209
Seitenzahl oder Artikelnummer:	355 362
Verlag:	Springer Science + Business Media B.V.
Verlagsort:	Dordrecht
Erscheinungsdatum:	2022
ISSN:	1573-7357
DOI der Originalveröffentlichung:	10.1007/s10909-022-02720-0
Enthalten in den Sammlungen:	DFG-491381577-H