Dosimetry standardization in radiation technology

Generalova, V. V.; Gurskii, M. N.

doi:10.1007/bf00824096

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Time-integrated patterns of the electron beam and cross sectional current density distribution were obtained by ZDP-2-F2 x-ray films. 17 These films were attached to an anode made of 50 m thick Al foil. After the exposure, the films were analyzed by an IFO-463 densitometer.…”

Section: Methodsmentioning

confidence: 99%

High-current electron beam generation by a metal–ceramic cathode

Krasik

Dunaevsky

Gleizer

et al. 2002

Journal of Applied Physics

View full text Add to dashboard Cite

We present results of the investigation of a metal–ceramic cathode suitable for technological applications. The cathode was tested in electron diodes powered by two different high-voltage generators (500 kV, 50 ns, 300 Ω, ⩽200 Hz and 300 kV, 250 ns, 84 Ω, ⩽5 Hz). The metal–ceramic cathode which was made in a form of a disk was composed of TiO2 ceramics with stainless steel spherical particles uniformly inserted inside. It was shown that already at relatively low accelerating fields (E⩽5 kV/cm) fast cathode plasma formation occurs as a result of surface flashover. This surface flashover is initiated in triple points located in micropores which were formed during the process of cathode preparation due to the different thermal expansion coefficients of the ceramic and the metal. Experimental data concerning the uniformity of the light emission from the cathode surface and inside the anode–cathode gap and divergence of the generated electron beams are presented. Also, it is shown that the uniformity of the generated electron beam depends strongly on the duration of the accelerating pulse.

show abstract

Section: Methodsmentioning

confidence: 99%