Radiation refers to the emission or transmission of energy in the form of waves or particles through space or through a material medium. It includes a wide range of types, from electromagnetic radiation, such as light, radio waves, and X-rays, to particle radiation, like alpha and beta particles, which are emitted by radioactive materials. Radiation can be classified into ionizing and non-ionizing radiation, based on its ability to ionize atoms and disrupt molecular bonds. Ionizing radiation, which includes ultraviolet light, X-rays, and gamma rays, has enough energy to remove tightly bound electrons from atoms, thus creating ions. Non-ionizing radiation, such as radio waves, microwaves, and visible light, does not have enough energy to ionize atoms. While radiation is naturally occurring and essential in many aspects of modern life, including medical imaging and communications, excessive exposure can be harmful to living organisms, potentially causing health issues like cancer and genetic damage.
A new study has directly imaged radioactive cesium atoms in environmental samples from Fukushima, providing crucial data for nuclear waste management and environmental recovery efforts….
The device, based on simple tetromino shapes, could determine the direction and distance of a radiation source, with fewer detector pixels. The spread of radioactive…
Studying animals resistant to DNA damage could offer insights into human vulnerability factors. The catastrophic event at the Chornobyl nuclear power plant in 1986, also…
Findings should inform rules on workplace protection from low-dose radiation, say researchers. Prolonged exposure to low-dose ionizing radiation is associated with a higher risk of…
According to a new study by a global team of researchers, individuals exposed to small amounts of ionizing radiation may experience a slight increase in…
Adequate protection cannot be guaranteed by standard personal protective equipment for breast tissue; employers should invest in protective gear that ensures the safety of all…
Technion researchers present the first-ever observation of the Cherenkov radiation phenomenon in a two-dimensional space. The researchers from the Andrew and Erna Viterbi Faculty of…
First-of-its-kind experimental evidence contradicts traditional theories about the emission and absorption of radiation by plasmas. While solids, liquids, and gases are familiar states of matter,…
The study in mouse cells analyzed the impact of space radiation and will help scientists better estimate the safety and dangers of space travel. An…
Mars is a lifeless wasteland for more than one reason. Not only are the temperatures and lack of water difficult for life to deal with,…
Nuclear power offers an efficient, reliable way to provide energy to large populations — as long as all goes well. Accidents involving nuclear reactors such…
Review explores ways that space radiation can damage cardiovascular health, and discusses how we can protect astronauts, from vitamin C to spinach. Space: the final…
In the coming years and decades, various nations want to explore the moon, and plan to send astronauts there again for this purpose. But on…
In certain alloys, exposure to proton irradiation can extend the material’s lifetime, study finds. Radiation nearly always degrades the materials exposed to it, hastening their…
An international team of scientists, led by the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), have found a new compound of plutonium with an unexpected, pentavalent oxidation state, using…
Radiation detector with the lowest noise in the world boosts quantum work. The nanoscale radiation detector is a hundred times faster than its predecessors, and…
In mice, new compound lifts molecular ‘brakes’ that normally slow the regeneration of blood stem cells. A drug developed by UCLA physician-scientists and chemists speeds…
Planning a trip to Mars? You’ll want to remember your anti-radiation pills. NASA and private space companies like SpaceX plan to send humans to the…