kVp is the penetrating ability of an x-ray and half value layer is the amount of filtration or thickness of an object needed to reduce the intensity of the x-ray by half. So if you decreased kVp, then the half value layer would decrease.
kvp calculation 6cm*2+40=?
An increase in kVp by 15% must be accompanied by a reduction in mAs by 50% in order to maintain radiographic density. Inversely, a reduction of 15% in kVp must be accompanied by an increase in mAs by a factor of 2 (Doubling).
Rearranging the the equation to make c the subject:- c = kVp-2t
kvp- peak kilovoltage controls the radiographic contrast of an x-ray image. on some x-ray machines (older ones) the kvp's have to be manually set according to the measurements of the subject being x-rayed, in order for the x-ray to come out right.
Matter mAs kVp
KVp
kVp(kilovoltage potential)
kVp(kilovoltage potential)
mA kVp Time SID
Both (A) and (C). mA and kVp
kVp should be increased by 15%
There are parameters used for x-ray examination (chest x-ray, many others including computed tomography). kVp stands for kilovolt peak and mAs for mili-Ampere-second. These parameters affect the effective dose the patient may get from a x-ray examination.