[Stabilization of the energy component of the radiation from diagnostic x-ray tubes]

A variation of X-ray energy spectrum has been experimentally studied in operating conditions. The filtration on the irregular sites of a destroyed target has been shown to cause a growth in effective radiant energy. A possibility to stabilize the spectrum by reducing a thickness of an additional filter is discussed. The relationship between the thickness of the equivalent aluminium filter and a value of X-ray tube ageing is given, the error of the spectrum stabilization being 5%.