000168388 001__ 168388
000168388 005__ 20260204153543.0
000168388 0247_ $$2doi$$a10.1063/5.0303520
000168388 0248_ $$2sideral$$a147847
000168388 037__ $$aART-2026-147847
000168388 041__ $$aeng
000168388 100__ $$aFàbrega, Lourdes
000168388 245__ $$aMo/Au transition-edge sensors: Effect of sensor size and absorber stem position on parameters and noise
000168388 260__ $$c2026
000168388 5060_ $$aAccess copy available to the general public$$fUnrestricted
000168388 5203_ $$aThe basic transition parameters and excess noise of Mo/Au-based transition-edge sensor (TES) x-ray detectors without banks and with Au absorber are analyzed as a function of TES dimensions and absorber stems position. We show the effect of the absorber stems and TES dimensions on these parameters. We observe that the logarithmic derivatives of R(T) are reduced and develop non-monotonous behavior vs bias as stems are placed on the Mo/Au sensor area, progressively disturbing the current flow inside the TES. TESs with outer tangent stems display higher excess noise but also higher figures of merit because of their higher α and β values. We find that both longer and narrower TESs have higher excess noise so that a trade-off is required for TES performance optimization. We discuss some hints for that. The possible origins of the experimental excess noise of these devices are also explored and discussed.
000168388 536__ $$9info:eu-repo/grantAgreement/ES/AEI/CEX2023-001263-S$$9info:eu-repo/grantAgreement/ES/DGA/E09-23R-QMAD$$9info:eu-repo/grantAgreement/ES/MICINN/CEX2023-001286-S$$9info:eu-repo/grantAgreement/ES/MICINN/PID2021-122955OB-C42$$9info:eu-repo/grantAgreement/ES/MICINN/2021-SGR-00445
000168388 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000168388 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000168388 700__ $$0(orcid)0000-0001-7289-5649$$aCamón, Agustín
000168388 700__ $$0(orcid)0000-0002-5457-3694$$aPobes, Carlos
000168388 700__ $$aStrichovanec, Pavel
000168388 700__ $$0(orcid)0000-0003-4068-127X$$aBolea, J.
000168388 773__ $$g139 (2026), 034502 [10 pp.]$$pJ. appl. physi.$$tJournal of Applied Physics$$x0021-8979
000168388 787__ $$toptical microscope images of TESs, graphs of Z(¿) with fits, error bars on parameters extracted from Z(¿) fits, and a representative graph of noise and its contributions.$$whttps://aip.figshare.com/collections/Mo_Au_Transition-Edge_Sensors_effect_of_sensor_size_and_absorber_stem_position_on_parameters_and_noise_/8218766
000168388 8564_ $$s2789533$$uhttps://zaguan.unizar.es/record/168388/files/texto_completo.pdf$$yVersión publicada
000168388 8564_ $$s1081980$$uhttps://zaguan.unizar.es/record/168388/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000168388 909CO $$ooai:zaguan.unizar.es:168388$$particulos$$pdriver
000168388 951__ $$a2026-02-04-13:15:02
000168388 980__ $$aARTICLE