TITLE

Damage of amorphous carbon induced by soft x-ray femtosecond pulses above and below the critical angle

AUTHOR(S)
Chalupský, J.; Hájková, V.; Altapova, V.; Burian, T.; Gleeson, A. J.; Juha, L.; Jurek, M.; Sinn, H.; Störmer, M.; Sobierajski, R.; Tiedtke, K.; Toleikis, S.; Tschentscher, Th.; Vysšín, L.; Wabnitz, H.; Gaudin, J.
PUB. DATE
July 2009
SOURCE
Applied Physics Letters;7/20/2009, Vol. 95 Issue 3, p031111
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present results of damage studies conducted at the Free Electron LASer in Hamburg (FLASH) facility with 13.5 nm (91.8 eV) and 7 nm (177.1 eV) radiations. The laser beam was focused on a sample of 890-nm-thick amorphous carbon coated on a silicon wafer mimicking a x-ray mirror. The fluence threshold for graphitization was determined for different grazing angles above and below the critical angle. The observed angular dependence of Fth is explained by the variation in absorption depth and reflectivity. Moreover, the absorbed local dose needed for the phase transition leading to graphitization is shown to vary with the radiation wavelength.
ACCESSION #
43398034

 

Related Articles

  • Adsorption of sodium and cesium on graphite: Work function calculations. Davydov, S. Yu. // Technical Physics Letters;Nov2009, Vol. 35 Issue 11, p998 

    Changes in the charge of adatoms and the substrate work function have been calculated for the adsorption layers of sodium and cesium on graphite using the Anderson-Newns model. The results of calculations are in good agreement with the available experimental data. It is established that there is...

  • Field emission from tetrahedral amorphous carbon. Satyanarayana, B.S.; Hart, A. // Applied Physics Letters;9/8/1997, Vol. 71 Issue 10, p1430 

    Examines the field emission from tetrahedral amorphous carbon. Role of the threshold field and current density in nitrogen incorporation; Effect of increasing sp content on the undoped film threshold film level; Importance of hydrogen in diamond surface affinity; Influence of the nitrogen...

  • Bonding and hardness in nonhydrogenated carbon films with moderate sp... content. Gago, R.; Jimenez, I. // Journal of Applied Physics;6/1/2000, Vol. 87 Issue 11, p8174 

    Presents a study which tested an amorphous carbon films with hydrogen by evaporation of graphite with ion bombardment. Results; Discussion; Conclusions.

  • Angular velocity spread of relativistic photoelectrons induced by excimer laser irradiation. Kawai, M.; Kawamura, Y.; Toyoda, K. // Applied Physics Letters;1984, Vol. 45 Issue 12, p1287 

    The angular velocity spread of relativistic photoelectrons induced by a pulsed excimer laser was measured. The energy, the current density, and the pulse duration of the accelerated photoelectron were 0.34 MeV, 0.5 A/cm2, and 20 ns, respectively. (The method of measurement is based on measuring...

  • Construcción de un Inmunosensor Amperométrico utilizando Apirasa de Solanum tuberosum para la Detección de Esquistosomiasis. Ramírez, Ninoska I. Bojorge; Fortes, Mariana; Salgado, Andréa Medeiros; Valdman, Belkis // Información Tecnológica;2009, Vol. 20 Issue 3, p125 

    This paper presents the development of an amperometric composites inmunosensor based on a vegetable protein for the determination of anti-Ac S. mansoni. The inmunosensor consists of a rigid matrix built with graphite and epoxy resin in which immobilizes covalently the Apyrase. The strategy of...

  • Growth mechanism for spherical carbon particles in a dc methane plasma. Nagai, Tatsuzo; Feng, Zongbao; Kono, Akihiko; Shoji, Fumiya // Physics of Plasmas;May2008, Vol. 15 Issue 5, p050702 

    The growth mechanism for spherical carbon particles of micron sizes observed in a vertically excited CH4/Ar columnar plasma [F. Shoji, Z. Feng, A. Kono, and T. Nagai, Appl. Phys. Lett. 89, 171504 (2006)] is investigated theoretically, based on a model in which the particles are negatively...

  • Cobalt particles wrapped in graphitic carbon prepared by an arc discharge method. Saito, Yahachi; Yoshikawa, Tadanobu; Okuda, Mitsumasa; Fujimoto, Naoya; Yamamuro, Saeki; Wakoh, Kimio; Sumiyama, Kenji; Suzuki, Kenji; Kasuya, Atsuo; Nishina, Yuichiro // Journal of Applied Physics;1/1/1994, Vol. 75 Issue 1, p134 

    Fine particles of cobalt and cobalt carbide nesting in multilayered graphitic sheets, which were synthesized by an electric arc discharge of carbon rods containing cobalt oxide (CoO), were studied by transmission electron microscopy, including microdiffraction and energy dispersive x-ray...

  • Experimental Conductivity Dependence of the Real Part of the Permittivity in a Disordered Paraffin—Graphite Macrosystem. Sotskov, V. A. // Technical Physics;Jun2005, Vol. 50 Issue 6, p807 

    The conductivity dependence of the real part of the permittivity of a paraffin–graphite macrosystem with a variable graphite concentration is studied experimentally. © 2005 Pleiades Publishing, Inc.

  • Adsorption of potassium on graphite: Work function calculations. Davydov, S. Yu. // Technical Physics Letters;Sep2009, Vol. 35 Issue 9, p847 

    Changes in the charge of adatoms and the substrate work function have been calculated using the Anderson-Newns model for the potassium/graphite system. The results of calculations are in good agreement with the available experimental data. It is established that there is electron transfer from K...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics