TY  - JOUR
AU  - Wenskat, Marc
AU  - King, Leon Adon
AU  - Saribal, Cem
AU  - Lorf, Anton
AU  - Gonzalez Diaz-Palacio, Isabel
AU  - Martens, Cornelius
AU  - Zierold, Robert
AU  - Hillert, Wolfgang
AU  - Koch, Lasse
TI  - Thermal transmittance measurements of niobium at cryogenic temperatures
JO  - Physica / C
VL  - 632
SN  - 0921-4534
CY  - Amsterdam
PB  - North-Holland Physics Publ.
M1  - PUBDB-2024-06669
SP  - 1354694
PY  - 2025
AB  - The first <i>O</i>(100s nm) of the inner surface Niobium-based superconducting RF (SRF) cavities are crucial to achieve high accelerating fields and a low surface resistance. Recent treatments aim to improve superconducting properties by tailoring the interstitial atom concentration or by depositing thin superconducting films. Yet, no investigation of the thermal characteristics of those surfaces after such treatments has been done, although this is a crucial property to cool the induced RF losses away and to maintain the superconducting state while high surface magnetic fields are applied. In this contribution, a newly developed experimental set up is described, which allowed the first ever measurement of the thermal transmittance of Mid-T heat treated and Superconductor-Insulator-Superconductor (SIS) coated Niobium samples. The results show that SIS samples perform the same as standard Niobium and that Mid-T heat treated samples have an improved thermal transmittance of 30%.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001449161300001
DO  - DOI:10.1016/j.physc.2025.1354694
UR  - https://bib-pubdb1.desy.de/record/617272
ER  -