Kilovoltage peak
Updates to Article Attributes
Body
was changed:
Kilovoltage peak (kVp) is the peak voltage applied to the X-ray tube. It determines the highest energy of X-ray photon. It is responsible for the acceleration of electrons from the cathode to the anode. It also determines tube current in space charge region.
Increase in kVp shifts the X-ray spectrum to right. The radiation dose to the patient is directly proportional to the square of kV. However, it must be remembered that in practical purposes where a different kVp is used in different cases (say for e.g. low kV in mammography as compared to chest X-ray), other factors like mA and FFD (filmfilm focus distance (FFD) play a role and a complex relation exist to the patient dose (patient dose in mammography is much more than a chest X-ray).
-<p><strong>Kilovoltage peak (kVp) </strong>is the peak voltage applied to the <a href="/articles/x-ray-tube-1">X-ray tube</a>. It determines the highest energy of X-ray photon. It is responsible for acceleration of electrons from cathode to anode. It also determines tube current in <a href="/articles/space-charge-effect">space charge</a> region. </p><p>Increase in kVp shifts the <a href="/articles/x-ray-spectrum">X-ray spectrum</a> to right. The radiation dose to the patient is directly proportional to square of kV. However it must be remembered that in practical purposes where a different kVp is used in different cases (say for e.g low kV in mammography as compared to chest X-ray), other factors like mA and FFD (film focus distance) play a role and a complex relation exist to the patient dose (patient dose in mammography is much more than a chest X-ray).</p>- +<p><strong>Kilovoltage peak (kVp) </strong>is the peak voltage applied to the <a href="/articles/x-ray-tube-1">X-ray tube</a>. It determines the highest energy of X-ray photon. It is responsible for the acceleration of electrons from the cathode to the anode. It also determines tube current in <a href="/articles/space-charge-effect">space charge</a> region. </p><p>Increase in kVp shifts the <a href="/articles/x-ray-spectrum">X-ray spectrum</a> to right. The radiation dose to the patient is directly proportional to the square of kV. However, it must be remembered that in practical purposes where a different kVp is used in different cases (say for e.g. low kV in mammography as compared to chest X-ray), other factors like mA and <a title="film focus distance" href="/articles/film-focus-distance">film focus distance</a> (FFD) play a role and a complex relation exist to the patient dose (patient dose in mammography is much more than a chest X-ray).</p>
Unable to process the form. Check for errors and try again.