EP 0768699 A1 19970416 - X-ray tube and barrier means therefor
Title (en)
X-ray tube and barrier means therefor
Title (de)
Röntgenröhre und Barrierevorrichtung dafür
Title (fr)
Tube à rayons X et élément barrière associé
Publication
Application
Priority
GB 9519715 A 19950927
Abstract (en)
An X-ray tube (7) is provided which is capable of generating high intensity X-rays without loss of reliability. The tube (7) includes a barrier means disposed between the focal spot (24) of the incident electron beam and the tube window (31) which prevents scattered electrons from reaching the window (31), whereas X-rays (9) are permitted to pass through at least a portion of the barrier means to reach the window (31). The X-ray permeable portion (20) of the barrier means typically consists of a diamond sheet. The X-ray tube has a small incident angle alpha (preferably between 7 DEG and 13 DEG ), a short distance between the focal spot (24) and the window (31), and a take-off angle beta preferably in the range 0 DEG to 20 DEG . <IMAGE>
IPC 1-7
IPC 8 full level
H01J 35/16 (2006.01)
CPC (source: EP)
H01J 35/16 (2013.01); H01J 2235/168 (2013.01)
Citation (search report)
- [DY] WO 9203837 A1 19920305 - DANOS MICHAEL [US]
- [Y] US 4468802 A 19840828 - FRIEDEL RUDOLF [DE]
- [A] US 2665391 A 19540105 - JAN BLEEKSMA
- [A] EP 0319244 A2 19890607 - MEICOR INC [US]
- [A] "RONTGENROHRE MIT BERYLLIUMFENSTER", NEUES AUS DER TECHNIK, no. 3, 15 September 1989 (1989-09-15), pages 4, XP000071660
- [A] PATENT ABSTRACTS OF JAPAN vol. 009, no. 251 (E - 348) 8 October 1985 (1985-10-08)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0768699 A1 19970416; EP 0768699 B1 20020619; DE 69621894 D1 20020725; DE 69621894 T2 20030220; GB 9519715 D0 19951129
DOCDB simple family (application)
EP 96307066 A 19960927; DE 69621894 T 19960927; GB 9519715 A 19950927