English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Ultra-sensitive cryogenic calorimeters have become a favored technology withwidespread application where eV-scale energy resolutions are needed. In thisarticle, we characterize the performance of an X-ray magnetic microcalorimeter(MMC) using a Fe-55 source. Employing an optimum filter-based amplitudeestimation and energy reconstruction, we demonstrate that an unprecedented FWHMresolution of $\Delta E_\mathrm{FWHM} =\left(1.25\pm0.17\mathrm{\scriptsize{(stat)}}^{+0.05}_{-0.07}\mathrm{\scriptsize{(syst)}}\right)\,\text{eV}$can be achieved. We also derive the best possible resolution and discusslimiting factors affecting the measurement. The analysis pipeline for the MMCdata developed in this paper is furthermore an important step for therealization of the proposed superfluid helium-based experiment DELight, whichwill search for direct interaction of dark matter with masses below 100MeV/c$^2$.

Optimum filter-based analysis for the characterization of a high-resolution magnetic microcalorimeter towards the DELight experiment