X-ray generators, in which electrical energy for loading is completely or mainly stored and switched capacitively, and in which the storage capacitor does not exceed 2GmF and the tube voltage is 40 kV to 150 kV.Cross References:BS 5724:Part 1BS 5724:Section 2.7BS 6059BS 6217BS 6641PD 6499PD 6499 (Amendment No. 1)IEC 407IEC 407AIEC 62B(Secretariat)91ICRP Publication 26