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High energy forms of radiation, which can be harmful to our bodies, include UV or ultraviolet light, which can burn our skin. Other types of high energy radiation are X-rays and gamma rays, which are used in hospitals for doctors to be able to diagnose illnesses.High energy forms of radiation, which can be harmful to our bodies, include UV or ultraviolet light, which can burn our skin. Other types of high energy radiation are X-rays and gamma rays, which are used in hospitals for doctors to be able to diagnose illnesses.

What radiations are used in medicine?

Ionising radiation is used in medicine in 3 ways:

• diagnostic radiology, which uses x-ray machines to obtain images of the inside of the patient's body.
• nuclear medicine, which uses radioactive substances introduced into the patient for diagnosis or treatment.

Why gamma radiation is used in medical treatment?

However, gamma rays can also be used to treat cancer. Radiation therapy, or radiotherapy, uses high-energy gamma rays to kill cancer cells and shrink tumours. Gamma Knife Radiosurgery is a special form of radiotherapy. It uses beams of gamma rays to treat injured brain tissue by damaging the DNA of dangerous cells.

How are gamma rays used in hospitals?

Sterilisation surgical instruments Gamma rays are high energy electromagnetic waves which are only stopped by thick lead. This means they can easily pass through medical equipment, such as syringes. As gamma rays pass through the packaging and syringe, they will kill viruses and bacteria which contaminate the syringe.

What is a source of radiation in the healthcare setting?

Today, in the US, medical procedures from ionizing radiation account for 51% of our average annual dose from radiation (the other 49% is from naturally occurring sources such as cosmic rays, radon, and soils).

What type of radiation is used in radiotherapy?

Radiation therapy uses high-energy particles or waves, such as x-rays, gamma rays, electron beams, or protons, to destroy or damage cancer cells. Your cells normally grow and divide to form new cells. But cancer cells grow and divide faster than most normal cells.

How is radiotherapy used in medicine?

Radiation therapy (also called radiotherapy) is a cancer treatment that uses high doses of radiation to kill cancer cells and shrink tumors. At low doses, radiation is used in x-rays to see inside your body, as with x-rays of your teeth or broken bones.

Do CT scans use gamma rays?

A nuclear scan uses an injected gamma ray emitting substance that accumulates in the organ of interest and a special camera records the gamma rays. A CT Scan is usually a series of X-rays taken from different directions that are then assembled into a three dimensional model of the subject in a computer.

Why is alpha radiation not used in medicine?

Although very energetic, and high in ionizing properties, the weight and size of alpha particles means they lose their energy over relatively short distances, and can easily be stopped by a layer of paper or human skin. As such, 'external' bodily exposure to alpha radiation carries little risk to health.

What radiation is used to Sterilise surgical instruments?

gamma rays Gamma irradiation is a physical/chemical means of sterilization, because it kills bacteria by breaking down bacterial DNA, inhibiting bacterial division. Energy of gamma rays passes through the equipment, disrupting the pathogens that cause contamination.