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Absolute cross sections for the K-shell photoionization of ground-state Li-like carbon [C$^{3+}$(1s$^2$2s $^2$S)] ions were measured by employing the ion-photon merged-beams technique at the Advanced Light Source. The energy ranges…

Accurate measurements of electron density are critical for determination of the plasma properties in the solar corona. We compare the electron densities diagnosed from Fe XIII lines observed by the Extreme-Ultraviolet Imaging Spectrometer…

One of the possible ways to maintain the micrometer spatial resolution while performing ion beam analysis in the air is to increase the energy of ions. In order to explore capabilities and limitations of this approach, we have tested a…

Instrumentation and Detectors · Physics 2019-03-13 Milko Jakšić , Davit Chokheli , Stjepko Fazinić , Veljko Grilj , Natko Skukan , Ivan Sudić , Tonči Tadić , Tome Antičić

A study of identification properties of a Si-Si DE-E telescope exploiting an underdepleted residual-energy detector has been performed. Five different bias voltages have been used, one corresponding to full depletion, the others associated…

The resolution and efficiency of a precision drift-tube chamber for the ATLAS muon spectrometer with final read-out electronics was tested at the Gamma Irradiation Facility at CERN in a 100 GeV muon beam and at photon irradiation rates of…

Instrumentation and Detectors · Physics 2016-04-06 M. Deile , J. Dubbert , S. Horvat , O. Kortner , H. Kroha , A. Manz , S. Mohrdieck-Moeck , F. Rauscher , R. Richter , A. Staude , W. Stiller

We report an Fe $K$-edge resonant inelastic X-ray scattering (RIXS) study of K$_{0.83}$Fe$_{1.53}$Se$_2$. This material is an insulator, unlike many parent compounds of iron-based superconductors. We found a sharp excitation around 1 eV,…

Accurate atomic transition data are important in many astronomical research areas especially in line spectroscopy study. Whereas transition data of He-like and H-like ions (i.e., ions at high-charge states) are accurately calculated, that…

High Energy Astrophysical Phenomena · Physics 2013-11-04 Jin-Yuan Liao , Shuang-Nan Zhang , Yangsen Yao

Polarized and azimuthal dependencies of optical second harmonics generation (SHG) at the surface of noncentrosymmetric semiconductor crystals have been measured on polished surfaces of ZnSe(100), using a fundamental wavelength of 1.06$\mu…

Optics · Physics 2007-05-23 Xiangyang Song , Arnold Neumann , Rein Maripuu , Kai Siegbahn

Kilonovae represent key sites of r-process nucleosynthesis, making opacity estimation and spectral analysis crucial for constraining their composition. Since light r-process elements shape the early ($\sim$0.5-1.5$\mathrm{d}$) ejecta…

High Energy Astrophysical Phenomena · Physics 2026-02-27 Matteo Bezmalinovich , Mattia Bulla , Gediminas Gaigalas , Diego Vescovi , Matteo Canzari , Sergio Cristallo

Scintillation and ionisation yields for nuclear recoils in liquid xenon above 10 keVnr (nuclear recoil energy) are deduced from data acquired using broadband Am-Be neutron sources. The nuclear recoil data from several exposures to two…

We present results of high-resolution experiments on single ionization of He, Ne and Ar by ultra-short (25 fs, 6 fs) 795 nm laser pulses at intensities 0.15-2.0x10^15 W/cm^2. We show that the ATI-like pattern can survive deep in the…

Atomic Physics · Physics 2009-11-10 A. Rudenko , K. Zrost , C. D. Schröter , V. L. B. de Jesus , B. Feuerstein , R. Moshammer , J. Ullrich

Dual-phase xenon TPC detectors are a highly scalable and widely used technology to search for low-energy nuclear recoil signals from WIMP dark matter or coherent nuclear scattering of $\sim$MeV neutrinos. Such experiments expect to measure…

We studied the optical absorption induced by 4.7eV pulsed laser radiation on Ge-doped a-SiO2 synthesized by a sol-gel technique. The absorption spectra in the ultraviolet spectral range were measured during and after the end of irradiation…

Materials Science · Physics 2015-06-25 F. Messina , M. Cannas , R. Boscaino , S. Grandi , P. Mustarelli

We have used an electron beam ion trap to measure electron-density-diagnostic line-intensity ratios for extreme ultraviolet lines from F XII, XIII, and XIV at wavelengths of 185-205 255-276 Angstroms. These ratios can be used as density…

New results on the study of radiation effects in solid nitrogen and N$_2$-doped Ne matrix are presented with a focus on the so-called $\gamma$-line origin. The irradiation was carried out in dc regime with an electron beam of subthreshold…

Chemical Physics · Physics 2023-11-30 E. V. Savchenko , I. V. Khyzhniy , S. A. Uyutnov , M. A. Bludov

Absolute photoionization cross-section calculations are presented for Se$^+$ using large-scale close-coupling calculations within the Breit-Pauli and Dirac-Coulomb R-matrix approximations. The results from our theoretical work are compared…

Earth and Planetary Astrophysics · Physics 2012-04-09 Brendan M. McLaughlin , Connor P. Ballance

The ALICE Collaboration is proposing a completely new apparatus, ALICE~3, for the LHC Runs~5 and beyond. In this context, a key subsystem for high-energy charged particle identification will be a proximity-focusing ring-imaging Cherenkov…

We present the first detection of carbon radio recombination line absorption along the line of sight to Cygnus A. The observations were carried out with the LOw Frequency ARray in the 33 to 57 MHz range. These low frequency radio…

Astrophysics of Galaxies · Physics 2015-06-18 J. B. R. Oonk , R. J. van Weeren , F. Salgado , L. K. Morabito , A. G. G. M. Tielens , H. J. A. Rottgering , A. Asgekar , G. J. White , A. Alexov , J. Anderson , I. M. Avruch , F. Batejat , R. Beck , M. E. Bell , I. van Bemmel , M. J. Bentum , G. Bernardi , P. Best , A. Bonafede , F. Breitling , M. Brentjens , J. Broderick , M. Brueggen , H. R. Butcher , B. Ciardi , J. E. Conway , A. Corstanje , F. de Gasperin , E. de Geus , M. de Vos , S. Duscha , J. Eisloeffel , D. Engels , J. van Enst , H. Falcke , R. A. Fallows , R. Fender , C. Ferrari , W. Frieswijk , M. A. Garrett , J. Griessmeier , J. P. Hamaker , T. E. Hassall , G. Heald , J. W. T. Hessels , M. Hoeft , A. Horneffer , A. van der Horst , M. Iacobelli , N. J. Jackson , E. Juette , A. Karastergiou , W. Klijn , J. Kohler , V. I. Kondratiev , M. Kramer , M. Kuniyoshi , G. Kuper , J. van Leeuwen , P. Maat , G. Macario , G. Mann , S. Markoff , J. P. McKean , M. Mevius , J. C. A. Miller-Jones , J. D. Mol , D. D. Mulcahy , H. Munk , M. J. Norden , E. Orru , H. Paas , M. Pandey-Pommier , V. N. Pandey , R. Pizzo , A. G. Polatidis , W. Reich , A. M. M. Scaife , A. Schoenmakers , D. Schwarz , A. Shulevski , J. Sluman , O. Smirnov , C. Sobey , B. W. Stappers , M. Steinmetz , J. Swinbank , M. Tagger , Y. Tang , C. Tasse , S. ter Veen , S. Thoudam , C. Toribio , R. van Nieuwpoort , R. Vermeulen , C. Vocks , C. Vogt , R. A. M. J. Wijers , M. W. Wise , O. Wucknitz , S. Yatawatta , P. Zarka , A. Zensus

We perform multi-dimensional, time-dependent radiation transfer simulations for hard X-ray and gamma-ray emissions, following radioactive decays of 56Ni and 56Co, for two-dimensional delayed detonation models of Type Ia supernovae (SNe Ia).…

High Energy Astrophysical Phenomena · Physics 2015-06-11 K. Maeda , Y. Terada , D. Kasen , F. K. Roepke , A. Bamba , R. Diehl , K. Nomoto , M. Kromer , I. R. Seitenzahl , H. Yamaguchi , T. Tamagawa , W. Hillebrandt
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