2-22. IMAGE INTENSIFIER FAULT CONDITIONS
a. If the intensifier presents you with fuzzy and distorted images, check for the
following conditions.
(1)
The mirror is out of adjustment.
(2)
Dirty mirror(s) or lenses.
(3) Ionized gas in the intensifier tube. To remedy this condition, apply
power to the intensifier tube and let it run for 24 hours without X-rays.
(4)
(5) The collimating lens is out of focus. To remedy this condition, refocus
the collimating lens and/or tighten the collimator clamp.
b. If the intensifier output glows without the presence of X-rays, it is most likely
caused by ionized gas in the intensifier tube. Apply power to the intensifier and let it run
for 24 hours without X-rays.
c. If there is no output when X-rays are applied, one or more of the following
conditions may exist.
(1)
Electrical power is not applied. Check the incoming power connectors.
(2)
The power supply has failed. Replace the power supply.
(3) The intensifier insert may be cracked allowing air into it. Replace the
image intensifier.
MD0351
2-44