Hospital physics is a branch of applied physics focusing on the use of physical principles and technologies in medical settings, especially hospitals. It covers various areas such as medical imaging (X-ray, MRI, CT scans), radiotherapy, nuclear medicine and medical instrumentation. Hospital physicists ensure the safe and effective use of radiation in diagnosis and treatment, optimize imaging techniques for accurate diagnosis, and maintain quality control of medical equipment. Their expertise is crucial to improving patient care and radiological safety in healthcare.