X-ray or gamma ray systems or devices – Source – Electron tube
Patent
1997-03-04
1998-06-02
Porta, David P.
X-ray or gamma ray systems or devices
Source
Electron tube
378113, H01J 3530
Patent
active
057612684
ABSTRACT:
In an X-ray diagnostic apparatus, for acquiring the cross-section, position and/or alignment, relative to a target, of an electron beam generated by an electron generating system, at least one conductor is provided in the region of the target so that a signal can be derived by the conductor under the influence of the electron beam and supplied to an evaluation stage. The conductor is composed of a material having an atomic number lower than that of tungsten, so that no undesirable radiation arises due to the interaction of the electrons with this conductor.
REFERENCES:
patent: 4075489 (1978-02-01), Neal et al.
patent: 4631741 (1986-12-01), Rand et al.
patent: 5224137 (1993-06-01), Plomgren et al.
patent: 5491734 (1996-02-01), Boyd et al.
"Introduction To X-Ray Spectrometric Analysis," Bertin, pp. 8-11, 22-49. No date.
Hell Erich
Voss Gustav-Adolf
Porta David P.
Siemens Aktiengesellschaft
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