X-ray generator selectively providing point- and line-focusing x

Details X-ray generator selectively providing point- and line-focusing x X-ray generator selectively providing point- and line-focusing x

1988-08-05

1989-09-12

Howell, Janice A.

X-ray or gamma ray systems or devices

Source

Electron tube

378136, H01J 3506

Patent

active

048667498

ABSTRACT:
An X-ray is generated when thermoelectrons emitted from a cathode impinge upon an anode, and the X-ray thus generated is taken out from a window. The cathode has a surface formed with two grooves intersecting at a right angle with each other and two coil filaments are fitted thereinto. By selectively heating one of the two coil filaments, a region on the anode upon which the thermoelectrons impinge is changed, whereby one of point- and line-focusing X-rays is selectively taken out from the window provided at a portion slightly below the face of the anode and at a wall of a casing of an X-ray tube.

REFERENCES:
patent: 3631289 (1971-12-01), Perry et al.

Affiliated with

Also associated with

Rating

X-ray generator selectively providing point- and line-focusing x does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with X-ray generator selectively providing point- and line-focusing x, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray generator selectively providing point- and line-focusing x will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-923115