OperaV1, Main, Merge, bibRecord, 000B60

Research and development of an electron beam focusing system for a high‐brightness X‐ray generator

Identifieur interne : 000B60 ( Main/Merge ); précédent : 000B59; suivant : 000B61

Research and development of an electron beam focusing system for a high‐brightness X‐ray generator

Auteurs : Takeshi Sakai ; Satoshi Ohsawa ; Noriyoshi Sakabe ; Takashi Sugimura ; Mitsuo Ikeda

Source :

Journal of Synchrotron Radiation [ 1600-5775 ] ; 2011-01-01.

RBID : ISTEX:51E006EF276B57FE61173CDFF0EE04D1D4CFCED1

English descriptors

KwdEn :
- DC electron gun, Electrons, Equipment Design, Synchrotrons (instrumentation), X-Rays, X‐ray generator, combined‐function bending magnet, high‐flux electron beam.
MESH :
- instrumentation : Synchrotrons.
- Electrons, Equipment Design, X-Rays.

Abstract

A new type of rotating anticathode X‐ray generator, where an electron beam of up to 60 keV irradiates the inner surface of a U‐shaped Cu anticathode, has achieved a beam brilliance of 130 kW mm−2 (at 2.3 kW). A higher‐flux electron beam is expected from simulation by optimizing the geometry of a combined‐function‐type magnet instead of the fringing field of the bending magnet. In order to minimize the size of the X‐ray source the electron beam has been focused over a short distance by a new combined‐function bending magnet, whose geometrical shape was determined by simulation using the Opera‐3D, General Particle Tracer and CST‐STUDIO codes. The result of the simulation clearly shows that the role of combined functions in both the bending and the steering magnets is important for focusing the beam to a small size. FWHM sizes of the beam are predicted by simulation to be 0.45 mm (horizontal) and 0.05 mm (vertical) for a 120 keV/75 mA beam, of which the effective brilliance is about 500 kW mm−2 on the supposition of a two‐dimensional Gaussian distribution. High‐power tests have begun using a high‐voltage 120 kV/75 mA power supply for the X‐ray generator instead of 60 kV/100 mA. The beam focus size on the target will be verified in the experiments.

Url:

https://api.istex.fr/document/51E006EF276B57FE61173CDFF0EE04D1D4CFCED1/fulltext/pdf

DOI: 10.1107/S0909049510029948

Links to Exploration step

ISTEX:51E006EF276B57FE61173CDFF0EE04D1D4CFCED1

Le document en format XML

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<author><name sortKey="Ohsawa, Satoshi" sort="Ohsawa, Satoshi" uniqKey="Ohsawa S" first="Satoshi" last="Ohsawa">Satoshi Ohsawa</name>
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<author><name sortKey="Sakabe, Noriyoshi" sort="Sakabe, Noriyoshi" uniqKey="Sakabe N" first="Noriyoshi" last="Sakabe">Noriyoshi Sakabe</name>
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<author><name sortKey="Sugimura, Takashi" sort="Sugimura, Takashi" uniqKey="Sugimura T" first="Takashi" last="Sugimura">Takashi Sugimura</name>
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<front><div type="abstract" xml:lang="en">A new type of rotating anticathode X‐ray generator, where an electron beam of up to 60 keV irradiates the inner surface of a U‐shaped Cu anticathode, has achieved a beam brilliance of 130 kW mm−2 (at 2.3 kW). A higher‐flux electron beam is expected from simulation by optimizing the geometry of a combined‐function‐type magnet instead of the fringing field of the bending magnet. In order to minimize the size of the X‐ray source the electron beam has been focused over a short distance by a new combined‐function bending magnet, whose geometrical shape was determined by simulation using the Opera‐3D, General Particle Tracer and CST‐STUDIO codes. The result of the simulation clearly shows that the role of combined functions in both the bending and the steering magnets is important for focusing the beam to a small size. FWHM sizes of the beam are predicted by simulation to be 0.45 mm (horizontal) and 0.05 mm (vertical) for a 120 keV/75 mA beam, of which the effective brilliance is about 500 kW mm−2 on the supposition of a two‐dimensional Gaussian distribution. High‐power tests have begun using a high‐voltage 120 kV/75 mA power supply for the X‐ray generator instead of 60 kV/100 mA. The beam focus size on the target will be verified in the experiments.</div>
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<front><div type="abstract" xml:lang="en">A new type of rotating anticathode X‐ray generator, where an electron beam of up to 60 keV irradiates the inner surface of a U‐shaped Cu anticathode, has achieved a beam brilliance of 130 kW mm−2 (at 2.3 kW). A higher‐flux electron beam is expected from simulation by optimizing the geometry of a combined‐function‐type magnet instead of the fringing field of the bending magnet. In order to minimize the size of the X‐ray source the electron beam has been focused over a short distance by a new combined‐function bending magnet, whose geometrical shape was determined by simulation using the Opera‐3D, General Particle Tracer and CST‐STUDIO codes. The result of the simulation clearly shows that the role of combined functions in both the bending and the steering magnets is important for focusing the beam to a small size. FWHM sizes of the beam are predicted by simulation to be 0.45 mm (horizontal) and 0.05 mm (vertical) for a 120 keV/75 mA beam, of which the effective brilliance is about 500 kW mm−2 on the supposition of a two‐dimensional Gaussian distribution. High‐power tests have begun using a high‐voltage 120 kV/75 mA power supply for the X‐ray generator instead of 60 kV/100 mA. The beam focus size on the target will be verified in the experiments.</div>
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<front><div type="abstract" xml:lang="en">A new type of rotating anticathode X-ray generator, where an electron beam of up to 60 keV irradiates the inner surface of a U-shaped Cu anticathode, has achieved a beam brilliance of 130 kW mm(-2) (at 2.3 kW). A higher-flux electron beam is expected from simulation by optimizing the geometry of a combined-function-type magnet instead of the fringing field of the bending magnet. In order to minimize the size of the X-ray source the electron beam has been focused over a short distance by a new combined-function bending magnet, whose geometrical shape was determined by simulation using the Opera-3D, General Particle Tracer and CST-STUDIO codes. The result of the simulation clearly shows that the role of combined functions in both the bending and the steering magnets is important for focusing the beam to a small size. FWHM sizes of the beam are predicted by simulation to be 0.45 mm (horizontal) and 0.05 mm (vertical) for a 120 keV/75 mA beam, of which the effective brilliance is about 500 kW mm(-2) on the supposition of a two-dimensional Gaussian distribution. High-power tests have begun using a high-voltage 120 kV/75 mA power supply for the X-ray generator instead of 60 kV/100 mA. The beam focus size on the target will be verified in the experiments.</div>
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Research and development of an electron beam focusing system for a high‐brightness X‐ray generator

Research and development of an electron beam focusing system for a high‐brightness X‐ray generator

Source :

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

	Serveur d'exploration sur l'opéra
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