Title:
POLARIZED ELECTRON GUN AND METHOD FOR GENERATING POLARIZED ELECTRON BEAM
Document Type and Number:
WIPO Patent Application WO/2010/106791
Kind Code:
A1
Abstract:
Provided are a polarized electron gun and a method for generating polarized electron beams, wherein polarized electron beams can be easily generated.
The polarized electron gun is comprised of a laser light source (11); a light dividing means (12) which divides light emitted from the laser light source; a polarization conversion element (36) which applies a phase difference to one of the laser lights divided by the light dividing means (12) in accordance with the position of incidence; a lens (18) which collects the incident light through the polarization conversion element (36); and a photo cathode (21) of a semiconductor wherein one laser light collected by the lens (18) enters in synchronization with the other laser light.
Inventors:
NISHITANI TOMOHIRO (JP)
TOMIZAWA HIROMITSU (JP)
TOMIZAWA HIROMITSU (JP)
Application Number:
PCT/JP2010/001859
Publication Date:
September 23, 2010
Filing Date:
March 16, 2010
Export Citation:
Assignee:
RIKEN (JP)
NISHITANI TOMOHIRO (JP)
TOMIZAWA HIROMITSU (JP)
NISHITANI TOMOHIRO (JP)
TOMIZAWA HIROMITSU (JP)
International Classes:
H01J37/073; H01J1/34
Foreign References:
| JP2008288099A | 2008-11-27 | |||
| JP2007258119A | 2007-10-04 | |||
| JPH0547326A | 1993-02-26 | |||
| JP2008536313A | 2008-09-04 |
Attorney, Agent or Firm:
IEIRI, Takeshi (JP)
家入健 (JP)
家入健 (JP)
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