What is radiation

about radiation
What is radiation. The radiation could be simply defined as an "influence" that is traveling outward. Radiation could not be seen directly. It is common to hear the word "field" when speaking about radiation.

Magnetic Field: This field has an effect on other materials nearby such as iron that are composed of magnetic material. Basically, a magnetic field is invisible to the human eye and cannot be directly seen.

Electric Field: The common another type of field that people encounter almost every day is an electric field. For example, you will accumulate an electric charge on your body when you walk across a wool carpet and the humidity is low. And you will get a momentary electric shock if you touch some other object that is not charged in the same way as you are. This happens because of the invisible electric field
or EMR is present in many different ways, that is a combination of a magnetic field and an electric field and these are specifically "changing" fields. It means that these radiations have a frequency associated with them or they are changing at some specific rate. The Electromagnetic Radiation includes light and all radio frequencies.

Basically, Radiation can be classified as non-Ionozing and ionizing radiation.
Non-ionizing Radiation: Non-ionizing radiation can be dynamic or static. Simply means the static s is not changing, otherwise, dynamic means changing.

Ionizing Radiation: The ionizing radiation creates ions. Ionizing radiation either steals electrons or adds electrons into the basic atoms that make up a material. Examples of ionizing radiation are X-rays (a stream of photons within a specific photon energy band), Gamma rays (similar to x-rays but a higher photon energy band) and Beta radiation (a stream of electrons)

There is a phenomenon in nature with dynamic magnetic fields and dynamic electric fields. This phenomenon is that one of these fields are created from the other one, as well. In electromagnetic radiation (EMR) that is non-ionizing radiation, an electric field that creates a magnetic field, which in turn creates another electric field, and so on.

Radiation Therapy For Cancer

There are many radiation methods that can be used for cancer’s therapy depending on its location, the type of cancer and health level of the patient's. In many cases, radiation is also used in conjunction or combination with other treatments.

There are two main forms of radiation. One of them is external beam therapy or external radiation. In this radiation type, radiation is emitted or administered directly at the tumor by a large machine that points the waves. It uses shield to protect the tissues surrounding of treatment area.

The internal radiation is other type of radiation. Internal radiation requires a high dose of radiation being placed inside the body in some way as close to the cancer site as possible. This type also known as implant radiation or brachytherapy. The treatment can be injected, swallowed or implanted directly into the tumor. Some of the internal radioactive implants are referred to as capsules or seeds.

The internal radiation delivers a high dose of radiation in a short period of time. The time involved by internal radiation is much shorter than external radiation.

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