Current = number of electrons = quantity = mAs

Energy = quality = kVp

I CM. –DISTANCE BETWEEN FILAMENT AND TUBE TARGET

PROJECTIVE ELECTRONS

TRANSFER THEIR ENERGY

PENETRATE THE TARGET

CONVERT KE INTO HEAT AND X-RAYS

THE ELECTRONS THEMSELVES ARE CONDUCTED THROUGH THE X-RAY ANODE ASSEMBLY AND OUT.

INFRARED RADIATION

NO TRANSFER OF ENERGY FROM ELECTRON

EXCITES OUTER SHELL ELECTRON OF ANODE TARGET

DOUBLE THE TUBE CURRENT = DOUBLE THE HEAT

Increases with kVp

See page 149

USEFUL BEAM

INNER SHELL

At 100 kVp = 15% of the x-rays produced are characteristic

At 65kVp = none are characteristic

BRAKING

At 65kVp all are bremstraulung

Large the "bump" = more quantity pg 156, figure 10-11

Farther to the right = more quality pg 156, figure 10-12

Added filtration decreases intensity but increases quality. Pg 157, figure 10-13

Increased atomic number of target

Single phase vs three phase in efficiency and quality pg 159, figure 10-16