Title :
Modeling of a soft X-ray diode using particle-in-cell and Monte-Carlo simulations
Author :
Keinigs, R.K. ; Faehl, R.J. ; Platts, D.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
Summary form only given. A soft X-ray tube built and developed by one of the authors (DP) is a standard radiographic diagnostic for imploding liner experiments conducted at Los Alamos. For particular experiments one would like to increase the X-ray dose and simultaneously decrease the X-ray spot size generated by this tube. We are using both particle-in-cell and Monte Carlo models to determine those design changes to the diode and/or driving voltage that can produce the desired characteristics. To evaluate the X-ray dose, the spectral features of the radiation, and spot size that are generated from electrons striking a cone-shaped tungsten anode target, we are using the Monte-Carlo transport code, MCNPE. A range of electron energies and incident angles is modeled to try to optimize the X-ray characteristics.
Keywords :
Monte Carlo methods; X-ray production; X-ray tubes; diodes; physics computing; plasma diagnostics; plasma inertial confinement; Los Alamos; MCNPE; Monte-Carlo simulations; X-ray dose; X-ray spot size; cone-shaped tungsten anode target; design changes; electron energies; imploding liner experiments; particle-in-cell simulations; radiographic diagnostic; soft X-ray diode; soft X-ray tube; Anodes; Diodes; Electrons; Plasma confinement; Plasma density; Plasma diagnostics; Plasma materials processing; Plasma measurements; Plasma properties; Plasma temperature;
Conference_Titel :
Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-3990-8
DOI :
10.1109/PLASMA.1997.605125
