How does kVp controls x-ray quality?

Kilovolt peak (kVp) controls the quality of x-rays by determining their energy and penetrating power. Higher kVp settings produce x-rays with greater energy, which can penetrate thicker or denser materials, resulting in improved image contrast and clarity. Conversely, lower kVp settings yield lower energy x-rays, which may be insufficient for penetrating certain tissues, leading to images with poor detail and increased radiation dose. Thus, optimizing kVp is crucial for achieving high-quality diagnostic images while minimizing patient exposure.