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Article Dans Une Revue Review of Scientific Instruments Année : 1997

High repetition rate compact source of nanosecond pulses of 5–100 keV x-ray photons

Résumé

A powerful, compact, and repetitive flash x-ray system based on a cable transformer technology powered by ceramic capacitors in a Blumlein-like configuration has been developed. Open circuit voltages in excess of 100 kV can be achieved while commutation occurs at low voltage (<20 kV). The x-ray emission from a low impedance x-ray diode with a hollow cathode configuration was observed under a wide range of experimental conditions. The critical parameters limiting the flash x-ray performances are mainly the pressure in the x-ray diode and the anode– cathode space. This true table top device is able to produce doses up to 1 R per shot, measured at the output window, of x-rays between 5 and 100 keV. The pulse widths were about 20 ns and the maximum repetition rate was about 60 Hz. Operation is possible in air or in other gases (He, Ne, Ar, Kr, Xe, H2, N2) at pressures varying from 1 µbar for xenon to about 1 mbar for helium.
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Dates et versions

hal-00198483 , version 1 (17-12-2007)

Identifiants

  • HAL Id : hal-00198483 , version 1

Citer

Ahmed Khacef, Raymond Viladrosa, Christophe Cachoncinlle, Eric Robert, Jean Michel Pouvesle. High repetition rate compact source of nanosecond pulses of 5–100 keV x-ray photons. Review of Scientific Instruments, 1997, 68 (6), pp.2292-2297. ⟨hal-00198483⟩
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