| (19) |
 |
|
(11) |
EP 2 239 755 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
25.11.2015 Bulletin 2015/48 |
| (43) |
Date of publication A2: |
|
13.10.2010 Bulletin 2010/41 |
| (22) |
Date of filing: 28.06.2000 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
| (30) |
Priority: |
09.07.1999 US 349592
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
|
00943252.7 / 1194944 |
| (71) |
Applicant: SERAC GROUP |
|
72400 La Ferté-Bernard (FR) |
|
| (72) |
Inventors: |
|
- Avnery, Tzvi
Winchester, MA 01890 (US)
- Felis, Kenneth P.
Stowe, VT 05672 (US)
|
| (74) |
Representative: Lavialle, Bruno François Stéphane |
|
Cabinet Boettcher
16, rue Médéric
75017 Paris
75017 Paris (FR) |
|
| |
|
| (54) |
Electron Beam Accelerator |
(57) An electron accelerator includes a vacuum chamber having an electron beam exit window.
The exit window is formed of metallic foil bonded in metal to metal contact with the
vacuum chamber to provide a gas tight seal therebetween. The exit window is less than
about 12.5 microns thick. The vacuum chamber is hermetically sealed to preserve a
permanent self-sustained vacuum therein. An electron generator is positioned within
the vacuum chamber for generating electrons. A housing surrounds the electron generator.
The housing has an electron permeable region formed in the housing between the electron
generator and the exit window for allowing electrons to accelerate from the electron
generator out the exit window in an electron beam when a voltage potential is applied
between the housing and the exit window.