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/

Zendy Plus

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

Zendy Tools

Zendy Open

The XIFU X-ray spectrometer instrument on the future Athena mission needsX-ray calibration sources to calibrate the gains of the individual detectorpixels. For this purpose, electronically controlled Modulated X-ray Sources(MXS) are proposed, similar to the calibrations sources used on the Hitomispacecraft and which will also fly on its successor, XARM. Here we present asimulation package based on the particle transport GEANT4 toolkit. Using thispackage, we compute the results for different targets and window configurationsfor the MXS's. The simulations expose the trade-offs to be made to select theoptimum source configuration for the Athena/XIFU and XARM/Resolve spectrometerinstruments.

Simulating Modulated X-ray calibration Sources for future X-ray missions, using GEANT4