Three Phase Generator X Ray

The three main parts to an x ray generator setup are an x ray tube a high voltage power supply and a control unit.

Three phase generator x ray. In the portable x ray machine. The discrete portion of the x ray emission spectrum would change position with a change in. Requires less mas than a sigle phase full wave generator. Higher ratings for ma and kvp can set technique higher and exposure times are as short as 1 msec.

Because of this uninterrupted reliability three phase generators are much more powerful. Table 1 3 relative radiation intensity as a function of distance from the radiation source inverse square law a generator uses a transformer to increase the voltage that is applied across the x ray tube. It has more efficient x ray production. In the development of x ray systems there are three major trends affecting the high voltage generator.

Three phase generators work by producing three separate waves of ac power that operate in a sequence ensuring that there is always a continuous flow of energy and that the power level never dips as it does with single phase generators. First nowadays x ray systems use passive three phase rectifiers which limit the application with weak power grids emit low frequency current harmonics and usually require adaption transformers for use with different nominal mains voltages. Three phase generators rectifier circuit inverts negative voltage sends highest of 3 phases to x ray tube to x ray tube input 3 phase voltage rectified 55. In order to obtain similar film optical density and or to obtain similar radiation dose the hf x ray generators require less exposure time nearly half to 2 3 rd as compared to single phase sp generators due to constant potential and radiation.

The x ray generator provides three things that are required to produce x rays and they are a source of electrons a means of acceleration and a target for interaction. Single phase three phase high frequency capacitor discharge mobile units battery operated mobile units not much used falling load where is the capacitor type generator used. Three phase generators produces nearly constant potential much higher tube ratings than single phase more efficient than single phase shorter exposures high repetition rates. Virtually all current x ray generators in radiology departments use three phase power supplies.

The invention relates to a three phase x ray generator comprising a three phase transformer having secondary windings which are connected to the x ray source via a rectifier circuit the high.