4 citations · 4 across the 1 of their papers we have counts for
5 papers
A test platform for the detection and readout chain for the Athena X-IFU
Gabriele Betancourt-Martinez, François Pajot, Sophie Beaumont +26
We present a test platform for the Athena X-IFU detection chain, which will serve as the first demonstration of the representative end-to-end detection and readout chain for the X-…
Charge exchange, from the sky to the laboratory: A method to determine state-selective cross-sections for improved modeling
Gabriele L. Betancourt-Martinez, Renata S. Cumbee, Maurice A. Leutenegger
Charge exchange (CX) is a semi-resonant recombination process that can lead to spectral line emission in the X-ray band. It occurs in nearly any environment where hot plasma and co…
High-Precision Determination of Oxygen-K Transition Energy Excludes Incongruent Motion of Interstellar Oxygen
M. A. Leutenegger, S. Kühn, P. Micke +25
We demonstrate a widely applicable technique to absolutely calibrate the energy scale of x-ray spectra with experimentally well-known and accurately calculable transitions of highl…
High-resolution Charge Exchange Spectra with L-shell Nickel Show Striking Differences from Models
G. L. Betancourt-Martinez, P. Beiersdorfer, G. V. Brown +7
We present the first high-resolution laboratory spectra of X-ray emission following L-shell charge exchange between nickel ions and neutral H2 and He. We employ the commonly used c…
Testing the X-IFU calibration requirements: an example for quantum efficiency and energy resolution
Edoardo Cucchetti, François Pajot, Etienne Pointecouteau +9
With its array of 3840 Transition Edge Sensors (TESs) operated at 90 mK, the X-Ray Integral Field Unit (X-IFU) on board the ESA L2 mission Athena will provide spatially resolved hi…