Title :
Scaling of SMP diode performance with geometry and voltage
Author :
Kiefer, Mark L. ; Johnston, Mark D. ; Webb, Timothy J. ; Leckbee, Joshua J. ; Renk, Timothy J. ; Oliver, Bryan V. ; Mazarakis, Michael G. ; Nielsen, Dan S. ; Ziska, Derek ; Lake, Patrick W. ; Bennett, N.L. ; Gignac, R.E. ; Smith, Chase C. ; Droemer, Darry
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
Abstract :
The self-magnetic pinch (SMP) electron beam diode has been studied extensively as an intense, flash x-ray, radiographic source at Sandia National Laboratories. It has been fielded across a wide range of voltages and geometric configurations on the Radiographic Integrated Test Stand (RITS-6) inductive voltage adder accelerator and the Ursa Minor 21-cavity linear transformer driver accelerator. We present the observed scaling and reproducibility behavior of the SMP diode with variations in voltage and geometry, as well as effects of various materials used in the diode. With the proper configurations, we have observed excellent performance from the SMP diode at up to 8 MV with indications of improvement at even higher voltages. Proposed physical underpinnings of this behavior, based on measurements, analysis and numerical simulation, will be presented.
Keywords :
electron beams; linear accelerators; numerical analysis; particle beam diagnostics; Radiographic Integrated Test Stand inductive voltage adder accelerator; Sandia National Laboratories; Ursa Minor 21-cavity linear transformer driver accelerator; geometric configurations; intense flash X-ray radiographic source; numerical simulation; reproducibility behavior; self-magnetic pinch electron beam diode performance; Electron beams; Geometry; Laboratories; Lakes; Life estimation; National security; Radiography;
Conference_Titel :
Plasma Sciences (ICOPS) held with 2014 IEEE International Conference on High-Power Particle Beams (BEAMS), 2014 IEEE 41st International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4799-2711-1
DOI :
10.1109/PLASMA.2014.7012695
