TY - PAT
T1 - X-ray tube comprising an exit window
AU - Achard van Enschut, d', J.F.M.
AU - Jenneskens, T.J.J.M.
AU - Swemmers, A.H.M.
PY - 1994/11/22
Y1 - 1994/11/22
N2 - An electron-optical system directs an electron beam which emanates, for example from a line-shaped or annular emissive cathode element, onto an anode target face in a collimated fashion so that a large part of reflected electrons is incident on the target face again, thus contributing to the generating of X-rays. The construction of the electron-optical system and the high degree of re-incidence of scattered electrons allows for a minimum distance between the anode target face and the exit window. A filament of the cathode may be constructed so as to achieve an optimally uniform operating temperature over a comparatively large part of its length.
AB - An electron-optical system directs an electron beam which emanates, for example from a line-shaped or annular emissive cathode element, onto an anode target face in a collimated fashion so that a large part of reflected electrons is incident on the target face again, thus contributing to the generating of X-rays. The construction of the electron-optical system and the high degree of re-incidence of scattered electrons allows for a minimum distance between the anode target face and the exit window. A filament of the cathode may be constructed so as to achieve an optimally uniform operating temperature over a comparatively large part of its length.
UR - http://v3.espacenet.com/publicationDetails/biblio?DB=EPODOC&adjacent=true&locale=nl_nl&FT=D&date=19941122&CC=US&NR=5367553A&KC=A
M3 - Patent publication
M1 - US5367553
ER -