activity
20032026
most citedHighly charged ions: optical clocks and applications in fundamental physics

314 citations · 2.4k across the 62 of their papers we have counts for

collaborators
Showing 2024Show all

7 papers · 1 filter

physics.atom-ph2024

Hanle Effect for Lifetime Analysis: Li-like Ions

Jan Richter, Moto Togawa, José R. Crespo López-Urrutia +1

Accurate lifetime measurements of excited states of highly charged ions (HCIs) are essential for advancing diagnostics in both laboratory and astrophysical plasmas, especially in t…

physics.atom-ph2024

Hanle effect for lifetime determinations in the soft X-ray regime

Moto Togawa, Jan Richter, Chintan Shah +16

By exciting a series of transitions in helium-like nitrogen ions with linearly polarized mono…

physics.atom-ph2024

High-accuracy Measurements of Core-excited Transitions in Light Li-like Ions

Moto Togawa, Steffen Kühn, Chintan Shah +11

The transition energies of the two -core-excited soft X-ray lines (dubbed q and r) from to the respective upper levels an…

physics.atom-ph2024

Measurement of differential collisional excitation cross sections for the K emission of He-like oxygen

Filipe Grilo, Chintan Shah, José Marques +3

We measure the energy-differential cross sections for collisional excitation of the soft X-ray electric-dipole K () emission from He-like oxygen (O VII), using an electro…

physics.atom-ph2024★ 8 cited

Natural-linewidth measurements of the 3C and 3D soft-x-ray transitions in Ni XIX

Chintan Shah, Steffen Kühn, Sonja Bernitt +15

We used the monochromatic soft-x-ray beamline P04 at the synchrotron-radiation facility PETRA III to resonantly excite the strongest transitions in neon-like Ni XIX ions, $…

physics.atom-ph2024

Laboratory Benchmark of Dielectronic Recombination Satellites of Fe XVII

Gabriel J. Grell, Maurice A. Leutenegger, Pedro Amaro +2

We calculated cross sections for the dielectronic recombination (DR) satellite lines of Fe XVII and benchmarked our predictions with experimental cross sections of Fe XVII resonanc…

physics.atom-ph2024★ 13 cited

High-Precision Transition Energy Measurements of Neon-like Fe XVII Ions

Chintan Shah, Moto Togawa, Marc Botz +15

We improve by a factor of 4-20 the energy accuracy of the strongest soft X-ray transitions of Fe XVII ions by resonantly exciting them in an electron beam ion trap with a monochrom…