The difference between ct and ordinary X-ray.

Ct: Use accurately calibrated X-ray beams, gamma rays, ultrasonic waves, etc. Together with the high sensitivity detector, cross-sectional scanning around a certain part of the human body is carried out one after another.

X-ray: the tough radiation of electrons bombards metals with high-energy electrons, and the electrons decelerate sharply in the process of hitting the metals. According to electromagnetism, charged particles with acceleration will radiate electromagnetic waves. If the energy of electrons is large, such as tens of thousands of electron volts, X-rays can be generated. This is the method of generating X-rays used in laboratories, factories, hospitals and other places.

2. Different dangers:

CT: Long-term and high-dose radiation may lead to cataract, sterilization, growth retardation and even induce malignant tumor or leukemia.

X-ray: Long-term exposure to X-ray will cause many hazards to human body, such as autonomic nerve dysfunction, low hematopoietic function, lens opacity, spermatogenesis disorder, and even induce tumors. X-ray injury is the most common radiation injury of medical staff. Injured cells, tissues and organs can also cause secondary harm to the body.

3. Different uses:

CT: CT diagnosis has been widely used in clinic because of its special diagnostic value. With the development of modern industry, CT plays an important role in nondestructive testing and reverse engineering. Air transport, transport ports, large cargo container equipment.

X-ray: X-ray can excite fluorescence, ionize gas and make photosensitive latex sensitive, so X-ray can be used in ionization meter, scintillation counter and photosensitive latex sheet, and the crystal lattice structure can produce significant diffraction effect on X-ray.

Reference: Baidu Encyclopedia -CT

Reference: Baidu encyclopedia -X-ray