[ RadSafe ] Beryllium window micro-focus tube

[Robert Barish]

Can someone advise me about the TVL for primary and scattered radiation in lead and concrete from an industrial Be-window x-ray unit operated at 130 kV? The tube has a tungsten target, a 100 micron focal spot at that maximum kV and its maximum mA, with a beryllium window 300 microns thick. The unit will not be placed in a shielded cabinet, so the information is needed for room wall/floor shielding calculations.

With thanks,

Robert Barish CHP