x-rays ALEVEL PHYSICS NOTES
@maltee notes
vx-ray tube
*it can be defined as : the vaccum tube where the
convertion of eletrical input to x-rays photons take place
x-ray tube is used in radiography for viewing the internal
body parts of human organs e.g the lungs and scanning
airports
**the x-ray tube consists of cathode(negatively charged
eletrode) and the rotating anode (the positively charged
eletrode)
**the anode target material is made from tungsten mate
of melting point 3374 degrees ,so that it would not easia
due to high temperatures experienced within the tube wh
elerons bombard the anode side ..
, **at the cathode ,eletrons are boiled off by a hot filamen
after it is heated to white
**high voltage source is responsible for heating cathode
white
**the beam of eletrons is targeted at the the tungsten an
by a cup shaped cathode
**thethe eletrons will be knocked from the cathode they
travel in a straigt line towards the the tungsten target
material (anode)
**there is voltage difference of upto 200kv between the t
eletrodes
**when the eletrons hit the metal target(anode ) their hig
@maltee notes
vx-ray tube
*it can be defined as : the vaccum tube where the
convertion of eletrical input to x-rays photons take place
x-ray tube is used in radiography for viewing the internal
body parts of human organs e.g the lungs and scanning
airports
**the x-ray tube consists of cathode(negatively charged
eletrode) and the rotating anode (the positively charged
eletrode)
**the anode target material is made from tungsten mate
of melting point 3374 degrees ,so that it would not easia
due to high temperatures experienced within the tube wh
elerons bombard the anode side ..
, **at the cathode ,eletrons are boiled off by a hot filamen
after it is heated to white
**high voltage source is responsible for heating cathode
white
**the beam of eletrons is targeted at the the tungsten an
by a cup shaped cathode
**thethe eletrons will be knocked from the cathode they
travel in a straigt line towards the the tungsten target
material (anode)
**there is voltage difference of upto 200kv between the t
eletrodes
**when the eletrons hit the metal target(anode ) their hig
