Conference Proceeding

Time Resolved Spot Size Measurements of the Cygnus Rod Pinch Flash Radiographic X-ray Source

Sandia Nat. Labs., Albuquerque;
07/2007; DOI:10.1109/PPPS.2007.4345544 ISBN: 978-1-4244-0915-0 pp.238-238 In proceeding of: Plasma Science, 2007. ICOPS 2007. IEEE 34th International Conference on
Source: IEEE Xplore

ABSTRACT Summary form only given. The Cygnus accelerators, based on a pulsed power Inductive Voltage Adder (IVA) architecture, coupled to a rod pinch source have been used successfully to conduct explosive driven hydrodynamic experiments for DOE laboratories. The rod pinch X-ray source produces a small spot size and is well suited for low energy experiments. Beam plasma interactions, which take place in the ns scale, as well as the material response of the target to the impinging beam dictate the dynamic behavior of the diode. A scintillation based Time Resolved Spot Size Diagnostic (TRSD) has been fielded on various rod pinch configurations, different diameter rods as well as tapered and un-tapered rods were used, on the Cygnus I accelerator. Time integrated spot sizes of 1 to 1.5mm, consistent with rod diameter and previous results were observed. Results of the temporal behavior of the spot size, time integrated spot, beam movement and dose rate are presented here.

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Keywords

Beam plasma interactions
 
conduct explosive
 
different diameter rods
 
dose rate
 
hydrodynamic experiments
 
impinging beam
 
low energy experiments
 
material response
 
ns scale
 
previous results
 
rod diameter
 
rod pinch source
 
rod pinch X-ray source
 
small spot size
 
spot size
 
spot sizes
 
Summary form
 
take place
 
un-tapered rods
 
various rod pinch configurations
 

S. Portillo