G. Gregori

XUV Opacity of Aluminum between the Cold-Solid to Warm-Plasma Transition (2009)

Vinko, S. M., Gregori, G., Nagler, B., Whitcher, T. J., Desjarlais, M. P., Lee, R. W., ...

We present calculations of the free-free XUV opacity of warm, solid-density aluminum at photon energies between the plasma frequency at 15 eV and the L-edge at 73 eV, using both density functional...

Turning solid aluminium transparent by intense soft X-ray photoionization (2009)

B. Nagler, U. Zastrau, R.R. Fäustlin, S.M. Vinko, T. Whitcher, ...

Journal article

The emergence of automated high-frequency flow cytometry: revealing temporal and spatial phytoplankton variability (2008)

Thyssen, M., Tarran, G.A., Zubkov, M.V., Holland, R.J., Gregori, G., Burkill, P.H., ...

Phytoplankton observation is the product of a number of trade-offs related to sampling processes, required level of diversity and size spectrum analysis capabilities of the techniques involved....

Analytical and high-resolution TEM investigation of boron-doped CeO2 (2008)

Rahmati, B., Gregori, G., Sigle, W., Koch, C. T., Van Aken, P. A., Maier, J.

Bremsstrahlung and line spectroscopy of warm dense aluminum plasma heated by xuv free-electron-laser radiation (2008)

U. Zastrau, C. Fortmann, R.R. Fäustlin, L.F. Cao, T. Döppner, ...

Journal article

Plasmon resonance in warm dense matter (2008)

Thiele, R, Bornath, T, Fortmann, C, Hoell, A, Redmer, R, Reinholz, H, ...

Image plate response for conditions relevant to laser-plasma interaction experiments (2008)

Paterson, IJ, Clarke, RJ, Woolsey, NC, Gregori, G

Observations of plasmons in warm dense matter (2007)

Glenzer, SH, Landen, OL, Neumayer, P, Lee, RW, Widmann, K, Pollaine, SW, ...

We present the first collective x-ray scattering measurements of plasmons in solid-density plasmas. The forward scattering spectra of a laser-produced narrow-band x-ray line from isochorically heated...

Temperature sensitivity of Cu K-alpha imaging efficiency using a spherical Bragg reflecting crystal (2007)

Akli, KU, Key, MH, Chung, HK, Hansen, SB, Freeman, RR, Chen, MH, ...

The interaction of a 75 J 10 ps, high intensity laser beam with low-mass, solid Cu targets is investigated. Two instruments were fielded as diagnostics of Cu K-shell emission from the targets: a...

HiPER : The European High Power Laser Energy Research Facility : technical background and conceptual design (2007)

Alexander, N, Amiranoff, F, Auger, P, Atzeni, S, Azechi, H, Bagnoud, V, ...

Thomson scattering from near-solid density plasmas using soft X-ray free electron lasers (2007)

A. Höll, Th. Bornath, L. Cao, T. Döppner, S. Düsterer, ...

Journal article

Potenziale, Umsetzungsstrategien und Visionen . Gastvortragsreihe 2006 (2006)

Elbert, R., Gregori, G., Hans, S., Hupe, J., Ossendorf, P., ...

Logistik ist ein Arbeitsfeld mit Zukunft. In der Diskussion um teure Mitarbeiter und hohe Produktivität wird immer mehr klar, dass althergebrachte Produktions-, Handels- und Dienstleistungskonzepte...

Study of electron and proton isochoric heating for fast ignition (2006)

Key, MH, Akli, K, Beg, F, Chen, MH, Chung, HK, Freeman, RR, ...

Isochoric heating by electrons has been measured in the two limiting cases of small area thin foils with dominant refluxing and cone-long-wire geometry with negligible refluxing in the wire. Imaging...

Development of time resolved x-ray spectroscopy in high intensity laser-plasma interactions (2006)

Notley, MM, Weber, RL, Fell, B, Jeffries, J, Freeman, RR, Mackinnon, AJ, ...

This article discusses the design of a novel time resolved von Hamos Bragg spectrometer to provide spectra in the region around the titanium K-alpha and He-alpha lines. The instrument consists of a...

Hot surface ionic line emission and cold K-inner shell emission from petawatt-laser-irradiated Cu foil targets (2006)

Theobald, W, Akli, K, Clarke, R, Delettrez, JA, Freeman, RR, Glenzer, S, ...

A hot, 2 to 3 keV electron temperature surface plasma was observed in the interaction of a 0.7 ps petawatt laser beam with solid copper-foil targets at intensities > 10(20) W/cm(2). Copper K-shell...

The interrelation between adhesion, contact creep, and roughness on the life of gold contacts in radio-frequency microswitches (2006)

Gregori, G., Clarke, D. R.

With repeated actuation, an increasing adhesive force develops between the gold contacts of radio-frequency microswitches until failure eventually occurs by stiction. Detailed characterization of the...

Microstructure evolution of precursors-derived SiCN ceramics upon thermal treatment between 1000 and 1400 °C (2005)

Gregori, G, Brequel, H, Enzo, S, Ziegler, G

Structural investigation of silicon carbonitride glasses by neutron diffraction (2002)

Brequel, H, Enzo, S, Gregori, G, Kleebe, H-J, Hannon, A C

3-D MHD Numerical Simulations of Cloud-Wind Interactions (2000)

Gregori, G., Miniati, Francesco, Ryu, Dongsu, Jones, T. W.

We present results from three-dimensional (3-D) numerical simulations investigating the magnetohydrodynamics of cloud-wind interactions. The initial cloud is spherical while the magnetic field is...

Enhanced Cloud Disruption by Magnetic Field Interaction (1999)

Gregori, G., Miniati, Francesco, Ryu, Dongsu, Jones, T. W.

We present results from the first three-dimensional numerical simulations of moderately supersonic cloud motion through a tenuous, magnetized medium. We show that the interaction of the cloud with a...

Individualized Strategies for Breast Cancer Surveillance Based on Aggregated Familial Information (1998)

Yakovlev, A., Boucher, K., Tsodikov, A., Kerber, R., Gregori, G.

This final report is concerned with stochastic modeling of breast cancer detection and estimation problems associated with the two-variate distribution of age and tumor size at diagnosis. Our...