radiation what does it mean

9 Everyday Sources of Radiation

radiation. [ ra?de-a ?sh?n ] Streams of photons, electrons, small nuclei, or other particles. Radiation is given off by a wide variety of processes, such as thermal activity, nuclear reactions (as in fission), and . Dec 08,  · Radiation is the release of energy, whether it takes the form of waves or particles. Radioactivity refers to the decay or splitting of an atomic nucleus. A radioactive material releases radiation when it decays. Examples of decay include alpha decay, beta decay, gamma decay, neutron release, and spontaneous fission.

They shoot bright spurts of radiation into space, said David Berghmans. Deinococcus, which can be found high up in our atmosphere, is known for its unusual ability to resist genetic damage from high doses of ultraviolet radiation and its tendency to form relatively large colonies.

DNA analysis suggested the radiation had fried their genetic material. For decades, that meant sterilizing males by exposing them to radiation and then releasing them into the wild. He was very familiar with the reality of what could happen: Tokyo could be covered with a really high dosage of radiation. Everything serene, snow piling on trees, over lawns, on houses, before we realize that all the snow is poisoned with radiation.

She said that whenever she came into the room, she had felt the radiation of a vast and unseen force. Hawking radiation for realistic black holes is a minuscule effect, and the bigger the black hole, the less radiation there is.

The effect of the heated air which acquires its temperature by radiation from the earth's surface is to produce the winds. Websites to know what your name means we can imagine the earth cut off from the solar radiationthe air would cease to move.

Aboard were not only oceanographers, but marine biologists experienced in radiation physics. Short hard radiation emitted from the tab neutralized the claws, put them out of commission.

Radiation tabs protected the UN troops, but if a man lost his tab he was fair game for the claws, no matter what his uniform. Energy sent out in the form of particles or waves. See alpha radiationbeta radiationblackbodycosmic rayselectromagnetic radiationfluorescencegamma radiationphotonand quanta. Save This Word! See synonyms for radiation on Thesaurus. Did you ever collect all those state quarters? Put them to good use on this quiz about curious state monikers and the facts around them.

What is it? The Sunflower State. See radiate-ion. How long to cook salmon on a charcoal grill nearby radiation Radiataradiata pineradiateradiate crown radiation what does it mean, radiate ligament of ribradiationradiational coolingradiation beltradiation biologyradiation damageradiation dermatitis.

Words related to radiation emissionradioactivitydiffusioncirculationtransmissiondivergencebroadcastdispersionpropagationspreadramificationdispersaldissipation radiation what does it mean, distributionscatteringdivaricationpolarizationdiffraction. Example sentences from the Web for radiation They shoot bright spurts of radiation into space, said David Berghmans.

If bacteria band together, they can survive for years in space Jonathan Lambert August 26, Science News. Black Holes Exist. Second Variety Philip Kindred Dick. Also called: radiation therapy med treatment using a radioactive substance. See adaptive radiation. Derived forms of radiation radiationaladjective.

The act or condition of diverging in all directions from a center. Radiation what does it mean emission and propagation of energy in the form of rays or waves. The energy radiated or transmitted in the form of rays, waves, or particles. A stream of particles or electromagnetic waves that is emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.

The radial arrangement of anatomical or histological parts. The spread of a group of organisms into new habitats. Published by Houghton Mifflin Company. Streams of photons, electrons, small nuclei, or other particles. Radiation is given off by a wide variety of processes, such as thermal activity, nuclear reactions as in fissionand by radioactive decay. The emission or movement of such particles through space or a medium, such as air. What is the best type of weed Notes at conduction electromagnetic radiation.

The use of such energy, especially x-rays, in medical diagnosis and treatment. All rights reserved. Book Your Online Tutor Now.

What to Expect When Having Radiation Therapy

In physics, radiation is a process in which energetic particles or energetic waves travel through a vacuum, or through matter-containing media that are not required for their propagation. Waves of a mass filled medium itself, such as water waves or sound waves, are usually not considered to be forms of "radiation" in this sense. Radiationis a very general term, used to describe any process that transmits energy through space or a material away from a source. Light, sound, and radio waves are all examples of radiation. When most people think of radiation, however, they are thinking of ionizing. Apr 04,  · Dose: 1 mrem per year. The average American watches about hours of TV per day, acquiring 1 mrem of X-ray radiation per year from the machine’s electric conductivity.

Skip to Content. It is normal to feel worried or overwhelmed when you learn that you will need radiation therapy. However, learning more about this type of cancer treatment may help you feel more prepared and comfortable. The information in this article can help you prepare for your first treatment. A highly trained medical team will work together to provide you with the best possible care. This team may include the following health care professionals:.

Radiation oncologist. This type of doctor specializes in giving radiation therapy to treat cancer. A radiation oncologist oversees radiation therapy treatments. They work closely with other team members to develop the treatment plan. Radiation oncology nurse.

This nurse specializes in caring for people receiving radiation therapy. A radiation oncology nurse plays many roles, including:.

Medical radiation physicist. This professional helps design treatment plans. They are experts at using radiation equipment. The dosimetrist helps your radiation oncologist calculate the right dose of radiation.

Radiation therapist or radiation therapy technologist. This professional operates the treatment machines and gives people their scheduled treatments.

Other health care professionals. Additional team members may help care for physical, emotional, and social needs during radiation therapy. These professionals include:. Each treatment plan is created to meet a patient's individual needs, but there are some general steps.

You can expect these steps before beginning treatment:. Meeting with your radiation oncologist. The doctor will review your medical records, perform a physical exam, and recommend tests. You will also learn about the potential risks and benefits of radiation therapy. This is a great time to ask any questions or share concerns you may have. Giving permission for radiation therapy. If you choose to receive radiation therapy, your health care team will ask you to sign an "informed consent" form.

Signing the document means:. Simulating and planning treatment. Your first radiation therapy session is a simulation. This means it is a practice run without giving radiation therapy. Your team will use imaging scans to identify the tumor location. These may include:. Depending on the area being treated, you may receive a small mark on your skin. This will help your team aim the radiation beam at the tumor. For radiation therapy to the head or neck, you may receive a thermoplastic mask.

This is a mesh mask that is molded to your face and secured to the table. It gently holds your head in place. It is important for your body to be in the same position for each treatment. Your radiation oncology team cares about your comfort. Talk with the team to find a comfortable position that you can be in every time you come in for radiation therapy. Tell them if you experience anxiety lying still in an immobilization device. Your doctor can prescribe medication to help you relax.

After the simulation at your first session, your radiation therapy team will review your information and design a treatment plan. Computer software helps the team develop the plan. What happens during your radiation therapy treatment depends on the kind of radiation therapy you receive. External-beam radiation therapy delivers radiation from a machine outside the body. It is the most common radiation therapy treatment for cancer.

Each session is quick, lasting about 15 minutes. Radiation does not hurt, sting, or burn when it enters the body. You will hear clicking or buzzing throughout the treatment and there may be a smell from the machine.

Typically, people have treatment sessions 5 times per week, Monday through Friday. This schedule usually continues for 3 to 9 weeks, depending on your personal treatment plan. This type of radiation therapy targets only the tumor. But it will affect some healthy tissue surrounding the tumor.

While most people feel no pain when each treatment is being delivered, effects of treatment slowly build up over time and may include discomfort, skin changes, or other side effects, depending on where in the body treatment is being delivered.

The 2-day break in treatment each week allows your body some time to repair this damage. Some of the effects may not go away until the treatment period is completed. Let the health care professionals if you are experiencing side effects. Read more about the side effects of radiation therapy. Internal radiation therapy is also called brachytherapy. This includes both temporary and permanent placement of radioactive sources at the site of the tumor.

Typically, you will have repeated treatments across a number of days and weeks. These treatments may require a brief hospital stay. You may need anesthesia to block the awareness of pain while the radioactive sources are placed in the body.

Most people feel little to no discomfort during this treatment. But some may experience weakness or nausea from the anesthesia. You will need to take precautions to protect others from radiation exposure.

Your radiation therapy team will provide these instructions. The need for such precautions ends when:. During your treatment, your radiation oncologist will check how well it is working. Typically, this will happen at least once a week. If needed, they may adjust your treatment plan. Many people experience fatigue, sensitive skin at the site of radiation exposure, and emotional distress during radiation therapy.

It is important to rest and take care of yourself during radiation therapy. Consider these ways to care of yourself:. Learn more about coping during treatment. And, be sure to talk with your health care team about how you are feeling throughout your treatment period. Once treatment ends, you will have follow-up appointments with the radiation oncologist.

It's important to continue your follow-up care, which includes:. As your body heals, you will need fewer follow-up visits. Ask your doctor for a written record of your treatment. This is a helpful resource as you manage your long-term health care.

Are there special services for patients receiving radiation therapy, such as certain parking spaces or parking rates? Will special precautions be needed to protect my family and others from radiation exposure during my treatment period? This 1-page printable PDF gives an introduction to radiation therapy, including an overview of the different types of radiation, what to expect during treatment, possible side effects, terms to know, and questions to ask the health care team.

Who is on my radiation therapy team? This team may include the following health care professionals: Radiation oncologist. A radiation oncology nurse plays many roles, including: Answering questions about treatments Monitoring your health during treatment Helping you manage side effects of treatment Medical radiation physicist. These professionals include: Social workers Nutritionists or dietitians Rehabilitation therapists, such as physical therapists or speech therapists Dentists Learn more about the oncology team.

What happens before radiation therapy treatment? You can expect these steps before beginning treatment: Meeting with your radiation oncologist. Signing the document means: Your team gave you information about your treatment options.

You choose to have radiation therapy. You give permission for the health care professionals to deliver the treatment. You understand the treatment is not guaranteed to give the intended results.