H
SECTION H — ELECTRICITY
 H05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
 H05G
X-RAY TECHNIQUE (X-ray therapy A61N; testing by X-rays G01N; apparatus for X-ray photography G03B; X-ray tubes H01J 35/00)
 H05G 1/00
X-ray apparatus or circuits therefor (X-ray therapy A61N 5/10; filters, conversion screens, microscopes G21K)
 H05G 1/02
·  Constructional details
 H05G 1/04
·  ·  Mounting the X-ray tube within a closed housing
 H05G 1/06
·  ·  ·  X-ray tube and at least part of the power supply apparatus being mounted within the same housing
 H05G 1/08
·  Electrical details
 H05G 1/10
·  ·  Power supply arrangements for feeding the X-ray tube
 H05G 1/12
·  ·  ·  with dc or rectified single-phase ac
 H05G 1/14
·  ·  ·  with single-phase low-frequency ac
 H05G 1/16
·  ·  ·  ·  Reducing the peak-inverse voltage
 H05G 1/18
·  ·  ·  with polyphase ac of low frequency
 H05G 1/20
·  ·  ·  with high-frequency ac; with pulse trains
 H05G 1/22
·  ·  ·  with single pulses
 H05G 1/24
·  ·  ·  ·  Obtaining pulses by using energy storage devices (pulse generators H03K)
 H05G 1/26
·  ·  Measuring, controlling, protecting (measuring electric values G01R; measuring X-ray intensity G01T)
 H05G 1/28
·  ·  ·  Measuring or recording actual exposure time; Counting number of exposures; Measuring required exposure time
 H05G 1/30
·  ·  ·  Controlling
 H05G 1/32
·  ·  ·  ·  Supply voltage of the X-ray apparatus or tube (regulating supply without reference to operating characteristics of the apparatus G05F)
 H05G 1/34
·  ·  ·  ·  Anode current, heater current, heater voltage of X-ray tube (regulating supply without reference to operating characteristics of the apparatus G05F)
 H05G 1/36
·  ·  ·  ·  Temperature of anode; Brightness of image
 H05G 1/38
·  ·  ·  ·  Exposure time
 H05G 1/40
·  ·  ·  ·  ·  using adjustable time switch
 H05G 1/42
·  ·  ·  ·  ·  using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube
 H05G 1/44
·  ·  ·  ·  ·  ·  in which the switching instant is determined by measuring the amount of radiation directly
 H05G 1/46
·  ·  ·  ·  Combined control of different quantities, e.g. exposure time as well as voltage or current
 H05G 1/48
·  ·  ·  ·  Compensating the voltage drop occurring at the instant of switching-on of the apparatus (regulating supply without reference to operating characteristics of the apparatus G05F)
 H05G 1/50
·  ·  ·  ·  Passing the tube current only during a restricted portion of the voltage waveform
 H05G 1/52
·  ·  ·  ·  Target size or shape; Direction of electron beam, e.g. in tubes with one anode and more than one cathode
 H05G 1/54
·  ·  ·  Protecting (overload protection combined with control H05G 1/46)
 H05G 1/56
·  ·  Switching-on; Switching-off
 H05G 1/58
·  ·  Switching arrangements for changing-over from one mode of operation to another, e.g. from radioscopy to radiography, from radioscopy to irradiation
 H05G 1/60
·  ·  Circuit arrangements for obtaining a series of X-ray photographs or for X-ray cinematography
 H05G 1/62
·  ·  Circuit arrangements for obtaining X-ray photography at predetermined instants in the movement of an object, e.g. X-ray stroboscopy
 H05G 1/64
·  ·  Circuit arrangements for X-ray apparatus incorporating image intensifiers
 H05G 1/66
·  ·  Circuit arrangements for X-ray tubes with target movable relatively to the anode
 H05G 1/68
·  ·  Circuit arrangements for Lilienfeld tubes; Circuit arrangements for gas-filled X-ray tubes
 H05G 1/70
·  ·  Circuit arrangements for X-ray tubes with more than one anode; Circuit arrangements for apparatus comprising more than one X-ray tube