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IPC 7
G21K-G21K00700

SECTION G – PHYSICS


G 21NUCLEAR PHYSICS; NUCLEAR ENGINEERING


G 21 KTECHNIQUES FOR HANDLING PARTICLES OR ELECTROMAGNETIC RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA- OR X-RAY MICROSCOPES (X-ray technique H05G; plasma technique H05H) [2]



1/

00Arrangements for handling radiation or particles, e.g. focusing, moderating (radiation filters G21K 3/00) [2]

1/

02.using diaphragms, collimators  [2]

1/

04..using variable diaphragms, shutters, choppers  [2]

1/

06.using diffraction, refraction, or reflection, e.g. monochromators (G21K 1/10, G21K 7/00 take precedence)  [2]

1/

08.Deviation, concentration, or focusing of the beam by electric or magnetic means (electron-optical arrangements in electric discharge tubes H01J 29/46)  [2]

1/

087..by electrical means  [4]

1/

093..by magnetic means  [4]

1/

10.Scattering devices; Absorbing devices  [2]

1/

12..Resonant absorbers or driving arrangements therefor, e.g. for Mössbauer-effect devices  [3]

1/

14.using charge exchange devices, e.g. for neutralising or changing the sign of the electrical charges of beams (producing or accelerating neutral particle beams H05H 3/00)  [3]

1/

16.using polarising devices, e.g. for obtaining a polarised ion beam  [3]


3/

00Radiation filters, e.g. X-ray filters  [2]


4/

00Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens (photographic processes using X-ray intensifiers G03C 5/17; discharge tubes comprising luminescent screens H01J 1/62; cathode ray tubes for X-ray conversion with optical output H01J 31/50) [3]


5/

00Irradiation devices (adaptations of reactors to facilitate irradiation G21C 23/00; discharge tubes for irradiating H01J 33/00, H01J 37/00) [2]

5/

02.having no beam-forming means  [2]

5/

04.with beam-forming means  [2]

5/

08.Holders for targets or for objects to be irradiated  [2]

5/

10.with provision for relative movement of beam source and object to be irradiated  [3]


7/

00Gamma- or X-ray microscopes  [2]


  
 

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