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IPC 7
H05H-H05H01500

SECTION H – ELECTRICITY


H 05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR


H 05 HPLASMA TECHNIQUE (fusion reactors G21B; ion-beam tubes H01J 27/00; magnetohydrodynamic generators H02K 44/08; producing X-rays involving plasma generation H05G 2/00); PRODUCTION OF ACCELERATED ELECTRICALLY- CHARGED PARTICLES OR OF NEUTRONS (obtaining neutrons from radioactive sources G21, e.g. G21B, G21C, G21G); PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS (atomic clocks G04F 5/14; devices using stimulated emission H01S; frequency regulation by comparison with a reference frequency determined by energy levels of molecules, atoms, or subatomic particles H03L 7/26)


Notes

(1)This subclass covers:

 (a)generating or handling plasma;

 (b)devices not covered by subclass H01J and in which electrons, ion beams, or neutral particles are accelerated to high energies;

 (c)devices for producing neutral particle beams;  [3]

 (d)targets for (a), (b), or (c).  [3]

(2)Attention is drawn to subclass G21K.  [3]


Subclass Index

PLASMA TECHNIQUE 

H05H 1/00 

PRODUCTION OR ACCELERATION OF NEUTRAL PARTICLE BEAMS 

H05H 3/00 

TARGETS FOR NUCLEAR REACTIONS 

H05H 6/00 

PARTICLE ACCELERATORS 

Direct voltage accelerators, accelerators using single pulses 

H05H 5/00 

Linear; magnetic induction; magnetic resonance 

H05H 9/00; H05H 11/00; H05H 13/00 

Others 

H05H 15/00 

Details 

H05H 7/00 



1/

00Generating plasma; Handling plasma

1/

02.Arrangements for confining plasma by electric or magnetic fields; Arrangements for heating plasma (electron optics H01J)

1/

03..using electrostatic fields  [3]

1/

04..using magnetic fields substantially generated by the discharge in the plasma

1/

06...Longitudinal pinch devices

1/

08...Theta pinch devices

1/

10..using applied magnetic fields only

1/

11...using cusp configuration (H05H 1/14 takes precedence)  [3]

1/

12...wherein the containment vessel forms a closed loop, e.g. stellarator

1/

14...wherein the containment vessel is straight and has magnetic mirrors

1/

16..using applied electric and magnetic fields

1/

18...wherein the fields oscillate at a very high frequency, e.g. in the microwave range

1/

20..Ohmic heating

1/

22..for injection heating

1/

24.Generating plasma  [2]

1/

26..Plasma torches  [2]

1/

28...Cooling arrangements  [3]

1/

30...using applied electromagnetic fields, e.g. high-frequency or microwave energy (H05H 1/28 takes precedence)  [3]

1/

32...using an arc (H05H 1/28 takes precedence)  [3]

1/

34....Details, e.g. electrodes, nozzles  [3]

1/

36.....Circuit arrangements (H05H 1/38, H05H 1/40 take precedence)  [3]

1/

38.....Guiding or centering of electrodes  [3]

1/

40.....using applied magnetic fields, e.g. for focusing or rotating the arc  [3]

1/

42....with provisions for introducing materials into the plasma, e.g. powder, liquid (electrostatic spraying, spraying apparatus with means for charging the spray electrically B05B 5/00)  [3]

1/

44....using more than one torch  [3]

1/

46..using applied electromagnetic fields, e.g. high frequency or microwave energy (H05H 1/26 takes precedence)  [3]

1/

48..using an arc (H05H 1/26 takes precedence)  [3]

1/

50...and using applied magnetic fields, e.g. for focusing or rotating the arc  [3]

1/

52..using exploding wires or spark gaps (H05H 1/26 takes precedence; spark gaps in general H01T)  [3]

1/

54.Plasma accelerators  [3]


3/

00Production or acceleration of neutral particle beams, e.g. molecular or atomic beams  [3]

3/

02.Molecular or atomic-beam generation, e.g. resonant beam generation (gas masers H01S 1/06)  [3]

3/

04.Acceleration by electromagnetic wave pressure  [3]

3/

06.Generating neutron beams (targets for producing nuclear reactions H05H 6/00; neutron sources G21G 4/02)  [5]


5/

00Direct voltage accelerators; Accelerators using single pulses (H05H 3/06 takes precedence) [5]

5/

02.Details (targets for producing nuclear reactions H05H 6/00)  [3]

5/

03..Accelerating tubes (vessels or containers of electric discharge tubes with improved potential distribution over surface of vessel H01J 5/06; shields of X-ray tubes associated with vessels or containers H01J 35/16)  [4]

5/

04.energised by electrostatic generators, e.g. by van de Graaff generator  [4]

5/

06.Tandem accelerators; Multi-stage accelerators

5/

08.Particle accelerators using step-up transformers, e.g. resonance transformers  [4]


6/

00Targets for producing nuclear reactions (supports for targets or objects to be irradiated G21K 5/08) [3]


7/

00Details of devices of the types covered by groups H05H 9/00 to H05H 13/00 (targets for producing nuclear reactions H05H 6/00) [3]

7/

02.Circuits or systems for supplying or feeding radio-frequency energy (radio-frequency generators H03B)

7/

04.Magnet systems; Energisation thereof

7/

06.Two-beam arrangements; Multi-beam arrangements

7/

08.Arrangements for injecting particles into orbits

7/

10.Arrangements for ejecting particles from orbits

7/

12.Arrangements for varying final energy of beam

7/

14.Vacuum chambers (H05H 5/03 takes precedence)  [4]

7/

16..of the waveguide type  [4]

7/

18..Cavities; Resonators  [4]

7/

20...with superconductive walls  [4]

7/

22.Details of linear accelerators, e.g. drift tubes (H05H 7/02 to H05H 7/20 take precedence)  [4]


9/

00Linear accelerators (H05H 11/00 takes precedence)

9/

02.Travelling-wave linear accelerators

9/

04.Standing-wave linear accelerators


11/

00Magnetic induction accelerators, e.g. betatrons

11/

02.Air-cored betatrons

11/

04.Biased betatrons


13/

00Magnetic resonance accelerators; Cyclotrons

13/

02.Synchrocyclotrons, i.e. frequency-modulated cyclotrons

13/

04.Synchrotrons

13/

06.Air-cored magnetic resonance accelerators

13/

08.Alternating-gradient magnetic resonance accelerators

13/

10.Accelerators comprising one or more linear accelerating sections and bending magnets or the like to return the charged particles in a trajectory parallel to the first accelerating section, e.g. microtrons  [4]


15/

00Methods or devices for acceleration of charged particles not otherwise provided for  [4]


  
 

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