X-ray spectra provide sharpest image to date of a rapidly spinning black hole

The X-Ray Imaging and Spectroscopy Mission (XRISM), a joint mission between the Japanese Aerospace Exploration Agency (JAXA) and NASA, launched on Sept. 7th, 2023. Its advanced imaging filters and ...
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Decaying dark matter: Unidentified X-ray emission lines in galaxy cluster spectra may point the way

Scientists search for "decaying" dark matter (DDM) because it offers unique signatures like specific X-ray or gamma-ray lines or neutrino signals not seen in normal matter, potentially revealing dark ...
SpaceNews

Opening a new X-ray window to the universe – scientists capture historic, first focused high-energy X-ray images of astronomical objects

X-ray spectrum for high sensitivity exploration,” said Dr. Brian Ramsey, lead scientist for the High Energy Replicated Optics (HERO) project. ” Every time a new wavelength region of the ...
EurekAlert!

What does it take to achieve high quality X-ray imaging?

The relationship between DQE, noise, and sensitivity for the RQA5 X-ray spectrum at 0.5 μGy and 1570000 electrons of full-well capacity (left). The relationship between noise, sensitivity, and dark ...
EurekAlert!

High energy resolution fluorescence spectrum of dispersive X-ray sources based on microcalorimeters: Perspectives for scanning electron microscopy and space exploration ...

The copper target was operated at voltages of 11 kV, 12 kV, 13 kV, and 14 kV for the electron source, and a 50 kV configuration using a molybdenum target was used as a representative example for the ...