The radiation emitted covers the entire electromagnetic spectrum and the intensity of the radiation (power/unit-area) at a given frequency is described by Planck's law of radiation.

The Office of Radiation Safety has prepared information sheets on various topics around ionising radiation, and guidance for dealing with radiation sources in New Zealand.

Dec 19, 2025 · All matter is constantly bombarded with radiation of both types from cosmic and terrestrial sources. This article delineates the properties and behaviour of radiation and the matter …

Dec 22, 2022 · If you have internal radiation treatment, a radioactive source will be placed into the body close to your cancer, or into the cancer itself. By doing this, high doses of radiation can be delivered …

Jan 25, 2023 · Radiation is energy that moves from one place to another in a form that can be described as waves or particles. We are exposed to radiation in our everyday life.

Jul 7, 2023 · Radiation is the emission of energy as electromagnetic waves or moving subatomic particles. Natural radiation comes from many naturally occurring radioactive materials found in soil, …

There are four major types of radiation: alpha, beta, neutrons, and electromagnetic waves such as gamma rays. They differ in mass, energy and how deeply they penetrate people and objects.