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Outline
Indent Level
Color Curly Brackets (indicating CPC extensions to IPC) References Date Revised

CPC
COOPERATIVE PATENT CLASSIFICATION
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X-RAY TECHNIQUE (apparatus for radiation diagnosis A61B 6/00; X-ray therapy A61N; testing by X-rays G01N; apparatus for X-ray photography G03B; filters, conversion screens, microscopes G21K; X-ray tubes H01J 35/00; TV systems having X-ray input H04N 5/321)
WARNING
-
The following IPC group is not used in the CPC scheme. H05G1/61 covered by H05G 1/60

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X-ray apparatus involving X-ray tubes; circuits therefor
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H05G 1/02
.
Constructional details
H05G 1/025
. .
{
Means for cooling the X-ray tube or the generator
}
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. .
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
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H05G 1/08
.
Electrical details
H05G 1/085
. .
{
Circuit arrangements particularly adapted for X-ray tubes having a control grid
}
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H05G 1/10
. .
Power supply arrangements for feeding the X-ray tube
{
supply circuits with converters in general H02M; supply circuits for emitters and amplifiers H04B 1/16 to H04B 1/1623
}
H05G 1/12
. . .
with dc or rectified single-phase ac
{
or double-phase
}
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H05G 1/14
. . .
with single-phase low-frequency ac
{
also when a rectifer element is in series with the X-ray tube
}
H05G 1/16
. . . .
Reducing the peak-inverse voltage
H05G 1/18
. . .
with polyphase ac of low frequency
{
rectified
}
H05G 1/20
. . .
with high-frequency ac; with pulse trains
{
(pulse generators in general H03K 3/00, H03K 4/00)
}
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H05G 1/22
. . .
with single pulses
H05G 1/24
. . . .
Obtaining pulses by using energy storage devices (pulse generators H03K)
{
current and voltage pulse generators H03K 3/53
}
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H05G 1/26
. .
Measuring, controlling, protecting (measuring electric values G01R; measuring X-ray intensity G01T)
H05G 1/265
. . .
{
Measurements of current, voltage or power
}
H05G 1/28
. . .
Measuring or recording actual exposure time; Counting number of exposures; Measuring required exposure time
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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)
{
voltage regulation in general 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)
{
current regulation in general G05F
}
H05G 1/36
. . . .
temperature of anode; brightness of image
{
power (electrical temperature regulating in general G05D 23/19)
}
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H05G 1/38
. . . .
exposure time
{
time switches in general H01H 43/00 and subgroups
}
H05G 1/40
. . . . .
using adjustable time-switch
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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
{
dosimetry in general G01T 1/02
}
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 the operating characteristics of the apparatus G05F)
{
voltage regulation in general 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
{
or lifetime prediction
}
(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
{
or from one tube voltage to an other
}
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
WARNING
-
Material provisionally in 97DP27; image intensifiers H01J 31/00
H05G 1/66
. .
Circuit arrangement for X-ray tubes with target movable relatively to the anode
H05G 1/68
. .
Circuit arrangements for Lilienfield 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
{
or more than one cathode (H05G 1/58 takes precedence)
}
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Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma (X-ray lasers H01S 4/00; plasma technique in general H05H)
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.
{
X-ray radiation generated from plasma (plasma for generation of electrons to be accelerated towards an anode H01J 35/00)
}
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. .
{
being produced from a liquid or gas
}
H05G 2/005
. . .
{
containing a metal as principal radiation generating component
}
H05G 2/006
. . .
{
details of the ejection system, e.g. constructional details of the nozzle
}
H05G 2/008
. .
{
involving a beam of energy, e.g. laser or electron beam in the process of exciting the plasma
}
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Last Modified: 10/10/2013