High Voltage Section Flashcards
The step up transformer increases voltage how many times?
500-1000
The high voltage generator contains
- High voltage transformer (step up)
- Filament transformer (step down)
- Rectifiers
What are the components for rectification in modern imaging systems?
solid state semiconductors
Rectifiers change
AC to DC
Full wave rectified, three phase, six pulse provides how many pulses per second?
360
voltage across the x-ray tube is most constant with
high frequency generators
single phase wave for has what percent ripple?
100%
The principle disadvantage of 3 phase equipment is
cost
The x-ray generator with the lowest power rating is
single phase
What device is used to allow electricity to flow in one direction?
diode/rectifier
What device is used to increase or decrease voltage by a certain amount?
transformer
Mutual induction involves electricity being induced into the
secondary coil
With mutual induction, to reduce voltage on the secondary side, there must be
AC in the primary coil
When mutual induction takes place, which current is being produced?
AC
A step up transformer results in
increased voltage & decreased amps
A step down transformer results in
decreased voltage & increased amps
A transformer with 100x more turns on the secondary side is a
step up transformer
The step up transformer converts
volts to kVp
What device changes AC to DC?
rectifiers
a solid state rectifier what which to types?
p-type/n-type
the fluctuation in voltage is know as
ripple
4 rectifiers will produce
full wave
single phase full wave will produce what percent of ripple?
100
3 phase uses how many AC wave forms at the same time?
3
The less the ripple, the more
constant the energy
The least amount of ripple is the result of
high frequency generator
the primary purpose of the step down is to
increase the amperage going into the filament
The high voltage section is the only section with
all three circuits
High voltage is responsible for converting
volts to kVp (step up)
