Angina may feel like pressure or squeezing in your chest. The pain also can occur in your shoulders, arms, neck, jaw, or back. Angina pain may even feel like indigestion. Angina isn't a disease; it's a symptom of an underlying heart problem.
Uses of X-rays. The main use of X-rays is in medicine. A comman application is in the form of X-ray machines, which take photos of a patientâs body. If an arm or leg were broken for example, then this limb would be put in front of the X-ray with a piece of photographic film behind.
How are gamma rays used? Gamma rays are a form of electromagnetic radiation, and they have the greatest energy of all forms of electromagnetic radiation. Gamma rays can easily penetrate most materials, including lead. Gamma rays are classified as ionizing radiation and are therefore hazardous to living cells.