Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Djouguela"'
Autor:
Djouguela, Fotso Danielle
This dissertation examines the problems facing adolescent girls in the pursuit of their right to education and this especially in South Africa. It presents the right to education as a human right belonging to everyone; not a privilege reserved for a
Externí odkaz:
http://hdl.handle.net/2263/37361
Autor:
Djouguela, Armand, Grießbach, Irmgard, Harder, Dietrich, Kollhoff, Ralf, Chofor, Ndimofor, Rühmann, Antje, Willborn, Kay, Poppe, Bjoern
Publikováno v:
In Zeitschrift fuer Medizinische Physik December 2008 18(4):301-306
Autor:
Djouguela, Armand, Harder, Dietrich, Kollhoff, Ralf, Rühmann, Antje, Willborn, Kay C., Poppe, Björn
Publikováno v:
In Zeitschrift fuer Medizinische Physik 2006 16(3):217-227
Autor:
Poppe, Björn, Atung, Zanzem, Chofor, George, Blechschmidt, Arne, Djouguela, Armand, Kollhoff, Ralf, Rubach, Antje, Harder, Dietrich
Publikováno v:
In Zeitschrift fuer Medizinische Physik 2005 15(4):287-291
Autor:
Bjoern Poppe, Ralf Kollhoff, Irmgard Grießbach, Armand Djouguela, Dietrich Harder, N Chofor, Kay Willborn, A. Rühmann
Publikováno v:
Zeitschrift für Medizinische Physik. 18:301-306
The unshielded Si diode PTW 60012, used for accurate measurements of the transversal dose profiles of narrow photon beams, has been investigated with regard to its linearity, photon energy dependence and spatial resolution. The diode shows a slight s
Publikováno v:
Physics in Medicine and Biology. 52:2921-2935
The spatial resolution of 2D detector arrays equipped with ionization chambers or diodes, used for the dose verification of IMRT treatment plans, is limited by the size of the single detector and the centre-to-centre distance between the detectors. O
Autor:
A. Rühmann, Wolfgang Kunth, Björn Poppe, Kay Willborn, Armand Djouguela, N Chofor, Ralf Kollhoff
Publikováno v:
Strahlentherapie und Onkologie. 183:43-48
To investigate the attenuation of a carbon-fiber tabletop and a combiboard, alongside with the depth-dose profile in a solid-water phantom.Depth-dose measurements were performed with a Roos chamber for 6- and 10-MV beams for a typical field size (15
Publikováno v:
Physics in Medicine and Biology. 51:4345-4356
In consideration of the importance of film dosimetry for the dosimetric verification of IMRT treatment plans, the Schwarzschild effect or failure of the reciprocity law, i.e. the reduction of the net optical density under 'protraction' or 'fractionat
Autor:
A Rubach, Bjoern Poppe, Armand Djouguela, Ralf Kollhoff, Arne Blechschmidt, Kay Willborn, Dietrich Harder
Publikováno v:
Medical Physics. 33:1005-1015
In this paper we describe a concept for dosimetric treatment plan verification using two-dimensional ionization chamber arrays. Two different versions of the 2D-ARRAY (PTW-Freiburg, Germany) will be presented, a matrix of 16 x 16 chambers (chamber cr
Autor:
Zanzem Atung, Arne Blechschmidt, Dietrich Harder, Björn Poppe, A Rubach, George Chofor, Armand Djouguela, Ralf Kollhoff
Publikováno v:
Zeitschrift für Medizinische Physik. 15:287-291
The two-dimensional verification of intensity-modulated radiation plans is one of the major requirements for the safe application of this technique. The present study examines the resolution and sensitivity of a two-dimensional ionisation-chamber arr