X-ray or gamma ray systems or devices – Source – Electron tube
Reexamination Certificate
2004-12-13
2010-10-05
Kiknadze, Irakli (Department: 2882)
X-ray or gamma ray systems or devices
Source
Electron tube
C378S119000
Reexamination Certificate
active
07809112
ABSTRACT:
A method of generating in particular EUV radiation (12) and/or soft X-ray radiation (12a) emitted by a plasma (26) is described. The plasma (26) is formed by an operating gas (22) in a discharge space (14) which comprises at least one radiation emission window (16) and an electrode system with at least one anode (18) and at least one cathode (20). This electrode system transmits electrical energy to the plasma (26) by means of charge carriers (24) introduced into the discharge space (14). It is suggested for obtaining a reliable ignition of the plasma (26) at high repetition frequencies that a radiation (30) generated by at least one radiation source (28) is introduced into the discharge space (14) for making available the discharge carriers (24).
REFERENCES:
patent: 7427766 (2008-09-01), Jonkers et al.
patent: 2006/0113498 (2006-06-01), Vaudrevange et al.
Apetz Rolf Theo Anton
Derra Günther Hans
Neff Willi
Rosier Oliver
Zink Peter
Kiknadze Irakli
Koninklijke Philips Electronics , N.V.
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