om 5184516-100 Rev. 5 A-3
Rating plates on housing list focal spot sizes and serial numbers.
Leakage technique factors:
Radiographic tube unit–150 kVp, 4 mA
Fluoroscopic tube unit–150 kVp, 5 mA
Minimum inherent filtration:
Tube housing – 0.3 mm aluminum at 150 kVp
Tube insert – 0.8 mm aluminum at 150 kVp
2-2 Tube Insert
Glass envelope facilitates “near” omni–directional heat radiation from target to the
interior of the housing for improved heat dissipation.
Special treatment of inner surface of glass envelope improves high–voltage stabil-
ity for consistent technics.
Special anode and cathode design minimizes metal deposits.
Rotor bearing design allows longitudinal thermal expansion of shaft with no
increase in friction.
NOTE: A high–speed rotor controller is required for operation of the Maxiray
TM
100
Tube Unit.
2-3 Thermal Ratings
Heat Storage Capacity:
• Anode – 260,000 Joules (350,000 heat units)
• Tube Unit – 1,110,000 Joules (1,500,000 heat units)
Maximum Heat Dissipation Rate:
• Anode – 75,000 heat units per minute.
• Tube Unit – 60,000 heat units per minute, blower operating, type 09 or 18
casings (740 watts).
• 75,000 heat units per minute, heat exchanger operating, type FL casings
(925 watts).
For single–phase equipment, heat units equal kVp x mA x seconds.
For three–phase, 12–pulse equipment, heat units equal the product of kVp x
mA x seconds x 1.35.
Internal oil circulation in the casing provides more uniform oil temperature for
improved heat dissipation.
External blower increases air circulation over tube casing for rapid casing heat
dissipation.
FOR TRAINING PURPOSES ONLY!
NOTE: Once downloaded, this document is UNCONTROLLED, and therefore may not be the latest revision. Always confirm revision status against a validated source (ie CDL).
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