|  | H |
SECTION H — ELECTRICITY

|  | H05 |
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

|  | H05G |
X-RAY TECHNIQUE (X-ray therapy Fulltext... Hierarchy... Expanded...A61N; testing by X-rays Fulltext... Hierarchy... Expanded...G01N; apparatus for X-ray photography Fulltext... Hierarchy... Expanded...G03B; X-ray tubes Fulltext... Hierarchy... Expanded...H01J 35/00)

|  | H05G 1/00 |
X-ray apparatus or circuits therefor (X-ray therapy Fulltext... Hierarchy... Expanded...A61N 5/10; filters, conversion screens, microscopes Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...H03K)

|  | H05G 1/26 |
· · | Measuring, controlling, protecting (measuring electric values Fulltext... Hierarchy... Expanded...G01R; measuring X-ray intensity Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...G05F)

|  | H05G 1/34 |
· · · · | anode current, heater current, heater voltage of X-ray tube (regulating supply without reference to operating characteristics of the apparatus Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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