Radiographic Properties of Plasma-Filled Rod-Pinch Diodes

Weber, B.V.; Allen, R.J.; Commisso, R.J.; Cooperstein, G.; Hinshelwood, D.D.; Mosher, D.; Murphy, D.P.; Ottinger, P. F.; Phipps, D.G.; Schumer, J.W.; Stephanakis, S. J.; Swanekamp, S.B.; Pope, S.; Threadgold, J.; Biddle, L.; Clough, S.G.; Jones, Aled; Sinclair, Mark; Swatton, D.; Carden, T.; Oliver, B.V.

doi:10.1109/tps.2008.918953

Cited by 26 publications

(3 citation statements)

References 22 publications

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“…In recent years, the rodpinch diode (RPD), similar to the RTD, has been widely used in 1-4 MV flash X-ray machines. Such characteristics as simple structure, easy assembly, excellent radiation dose, and small imaging focus attracting many researchers [4,5], which gradually developed the prefilled rod-pinch diode [6], the radial foil RPD [7], and other X-ray diodes with better imaging effect. Our previous experiments show that using RPDs on the 450 kV pulsed X-ray machine can improve the radiation dose compared with the RTD.…”

Section: Introductionmentioning

confidence: 99%

A preliminary study on the hollow anode of a 450 kV rod-pinch diode

Feng

et al. 2022

J. Inst.

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This paper proposes a hollow rod as the anode of a rod-pinch diode (RPD) at about 450 kV voltage. Two kinds of hollow rod anodes that may enhance the central radiation dose are obtained through PIC and Monte Carlo simulations. The experimental results show that the hollow anode made by Electrical Discharge Machining (EDM) can effectively enhance the forward central dose of the 450 kV rod-pinch diode, which helps to improve the radiation imaging definition.

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Section: Introductionmentioning

confidence: 99%

A preliminary study on the hollow anode of a 450 kV rod-pinch diode

Feng

et al. 2022

J. Inst.

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“…Rod pinch diodes are limited by the spatial distribution characteristics of the radiation field and are often used in an environment where voltage is not higher than 6 MV [3][4][5][6]. A plasma filled rod pinch diode, which exhibits low impedance, is applicable to low working voltages (1-2 MV) [7,8]. Paraxial diodes are disadvantageous because of their complicated structure and large focal spots (diameter=4-6 mm), and their impedance is than that of rod pinch or self pinch diodes [9].…”

Section: Introductionmentioning

confidence: 99%

Design and experimental research on a self-magnetic pinch diode under MV

Zhang

Yang

Sun

et al. 2017

Plasma Sci. Technol.

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A self-magnetic pinch diode (SMPD) integrating an anode foil-reinforced electron beam pinch focus and a small high-dose x-ray spot output was designed and optimized. An x-ray focal spot measuring system was developed in accordance with the principle of pinhole imaging. The designed SMPD and the corresponding measuring system were tested under ∼MV, with 1.75×2 mm 2 oval x-ray spots (AWE defined) and forward directed dose 1.6 rad at 1 m. Results confirmed that the anode foil can significantly strengthen the electron beam pinch focus, and the focal spot measuring system can collect clear focal spot images. This finding indicated that the principle and method are feasible.

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“…However, magnetic core transformer, which is widely used in the field of high power pulse power, has high coupling coefficient and high energy conversion efficiency (Mesyats et al, 2003;Su et al, 2009). IEBA based on Tesla transformer has been used in many fields, such as high power microwave driven (Miller et al, 1975;Weber et al, 1993;Tarasenko et al, 2005), X-ray radiography (Weber et al, 2008), and radiation effects testing (Weber et al, 2004) and so on.…”

Section: Introdutionmentioning

confidence: 99%

Study of low impedance intense electron-beam accelerator based on magnetic core Tesla transformer

Liu¹,

Zhang²,

Yang³

et al. 2012

Laser Part. Beams

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An intense electron-beam accelerator, which consists of a primary storage capacitor system, a magnetic core Tesla transformer, Blumlein pulse forming line of water dielectric, and a field-emission diode, are constructed and described. The experimental results show that the output voltage of transformer is more than 740 kV, the rise time is about 5 μs, the diode voltage is about 596 kV, electron beam current is about 60 kA, the duration is about 100 ns, and the power is 36 GW when charging voltage is 40 kV. It was suitable to drive magnetically insulated transmission line oscillator. And it can be also used in materials surface modification. This accelerator is very compact and works stably and reliably.

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Radiographic Properties of Plasma-Filled Rod-Pinch Diodes

Cited by 26 publications

References 22 publications

A preliminary study on the hollow anode of a 450 kV rod-pinch diode

A preliminary study on the hollow anode of a 450 kV rod-pinch diode

Design and experimental research on a self-magnetic pinch diode under MV

Study of low impedance intense electron-beam accelerator based on magnetic core Tesla transformer

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