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- Physicists and astronomers

Physicists and astronomers conduct research and improve or develop concepts, theories and operational methods concerning matter, space, time, energy, forces and fields and the interrelationship between these physical phenomena. They apply scientific knowledge relating to physics and astronomy in industrial, medical, military or other fields.
Tasks include -
conducting research and improving or developing concepts, theories, instrumentation, software and operational methods related to physics and astronomy;
conducting experiments, tests and analyses on the structure and properties of matter in fields such as mechanics, thermodynamics, electronics, communications, power generation and distribution, aerodynamics, optics and lasers, remote sensing, medicine, sonics, magnetism, and nuclear physics;
evaluating results of investigations and experiments and expressing conclusions, mainly using mathematical techniques and models;
applying principles, techniques and processes to develop or improve industrial, medical, military and other practical applications of the principles and techniques of physics or astronomy;
ensuring the safe and effective delivery of radiation (ionising and non-ionising) to patients to achieve a diagnostic or therapeutic result as prescribed by a medical practitioner;
ensuring the accurate measurement and characterization of physical quantities used in medical applications;
testing, commissioning and evaluating equipment used in applications such as imaging, medical treatment and dosimetry;
advising and consulting with medical practitioners and other health care professionals in optimizing the balance between the beneficial and deleterious effects of radiation;
observing, analysing and interpreting celestial phenomena and developing methods, numerical models and techniques to extend knowledge of fields
such as navigation, satellite communication, space

Physicists and astronomers