Title :
Detailed simulation of the Cygnus rod pinch radiographic source
Author :
Miller, C.L. ; Welch, D.R. ; Rose, D.V. ; Oliver, B.V.
Author_Institution :
Voss Sci., LLC, Albuquerque, NM, USA
fDate :
June 28 2009-July 2 2009
Abstract :
In this paper, we present results from particle-in-cell simulations of the nominally 2-MV, 40-kA CYGNUS radiographic machine using a standard rod pinch diode. The rod pinch electron beam diode consists of a small diameter, high atomic number anode extending through a thin cathode aperture. Significant shot-to-shot variation of the photon spectrum emerging from the anode can introduce error in interpreting the radiograph. We present results from these integrated simulations of electron and photon generation and quantify the sensitivities on the photon distribution and compare these to measured data.
Keywords :
X-ray production; electron beam applications; pinch effect; radiography; CYGNUS radiographic machine; CYGNUS rod pinch radiographic source; current 40 kA; electron generation simulation; high atomic number anode; particle in cell simulations; photon generation simulation; photon spectrum variation; rod pinch electron beam diode; small diameter anode; thin cathode aperture; voltage 2 MV; Anodes; Atomic beams; Cathodes; Diodes; Electron beams; Electron emission; Laboratories; Protons; Radiography; Voltage;
Conference_Titel :
Pulsed Power Conference, 2009. PPC '09. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-4064-1
Electronic_ISBN :
978-1-4244-4065-8
DOI :
10.1109/PPC.2009.5386243
