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We propose to construct a compact and portable x-pinch driver with x-rayradiation performance, comparable to standard x-pinch drivers. Such a newx-pinch driver was recently designed, fabricated and tested at the IdahoAccelerator Center. The generator is based on two slow LTD bricks combined intoone solid unit, and can be described by a simple RLC circuit with four fast140-nF, 100-kV capacitors that store up to 2.8 kJ. The test data reveals thatwhen charged to 80 kV, the driver supplies 185-kA peak-current into a shortNi-wire load with 220-ns, 10-90%, rise time. The total internal inductance ofour driver was measured to be about 60 nH. The revised driver model shows thatwhen fully charged to 100 kV, the driver will supply 180-kA peak-current with150-ns rise-time into the x-pinch load. The corresponding current rise rate isabout 1.2 kA/ns. To prove the driver x-pinch efficiency and to estimate thex-ray radiation performance, we could, for example, image an exploding wires,placed in a separate HV pulser, with our x-pinch x-ray radiation source. Thestudy of exploding wires helps to understand the behavior of a warm densematter, and our x-pinch driver can be part of the diagnostics needed for thisstudy which is currently under progress at the IAC. Our driver contains no oilinside, is very compact and portable, and can be easily relocated topractically anywhere, which makes it an ideal backlighting diagnostic tool inmany areas of plasma physics, biology, and industry where a bright, fast, andsmall x-pinch radiation source is required.

A new compact, portable 2-LTD-brick x-pinch driver at the Idaho Accelerator Center: design, fabrication, testing and x-ray performance