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The RITS-6 inductive voltage adder (IVA) accelerator (3.5–8.5 MeV) at Sandia National Laboratories produces highpower (TW) focused electron beams (< 3mm diameter) for flash x-ray radiography applications. The Self-Magnetic Pinch (SMP) diode utilizes a hollowed metal cathode to produce a pinched focus onto a high-Z metal anode converter. There is not a clear understanding as to the effects various...
The results presented here were obtained with an SMP diode mounted at the front high voltage end of the RITS accelerator. RITS is a Self-Magnetically Insulated Transmission Line (MITL) voltage adder that adds the voltage pulses of six 1.3 MV inductively insulated cavities.
The self-magnetic-pinch (SMP) diode1,2 is being developed as a source for flash x-ray radiography. The high electric field stresses applied to this diode and material heating from the intense electron beam generate electrode plasmas. While these plasmas are instrumental in beam formation and focusing, rapid plasma expansion from the electrodes can degrade radiographic performance.
The RITS-6 accelerator (4–7.5 MeV) at Sandia National Laboratories produces high-power (TW) focused electron beams (< 3mm diameter) for flash x-ray radiography applications.1 The beam is generated in a Self-Magnetic Pinch (SMP) diode, which utilizes a hollowed metal cathode to produce a pinched focus onto a high Z metal converter. Optimum radiographic performance requires a small pinch spot size...
This paper introduces the JNM Special Issue on the development of a first wall for the reaction chamber in a laser fusion power plant. In this approach to fusion energy a spherical target is injected into a large chamber and heated to fusion burn by an array of lasers. The target emissions are absorbed by the wall and encapsulating blanket, and the resulting heat converted into electricity. The bulk...
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