Any electromagnetic radiation can be dangerous. Alpha waves are higher on the radiation scale than x-rays so yes, they are dangerous.
The radiation belt around Earth can be dangerous for humans and electronics in space due to high levels of energetic particles. Astronauts in space missions need to carefully monitor their exposure and take precautions to minimize risks. Satellites and spacecraft passing through the radiation belt may experience electrical issues or even damage to their components.
Fluoroscopy is generally considered more dangerous than radiography because it involves real-time imaging that exposes patients and medical staff to higher doses of radiation. Prolonged or frequent fluoroscopy procedures can increase the risk of radiation-related health effects. Radiography, on the other hand, produces a lower dose of radiation per procedure and is typically considered safer.
EXTREMLY
Yes!! Of course they can!! Today's radiotherapy machines are know as Linear Accelerators which are electric and once they are shut off they are off no radiation leaks, or go anywhere. They do not have a live source, and you do not become radioactive when you are receiving radiation therapy. You can't harm others, and you can't spread radiation to others. The only thing you can't do is be in the room with them when they are receiving the treatment. Other than that being around family is a great way for the person with cancer to get better it picks up their spirits, and improves their quality of life.
It is potentially dangerous. The radiation level found in granite is enough to suppress the immune system, cause birth defects, and cause cancer. There are granite composite options which are not containing the level of radiation that is dangerous.
Patients receiving interstitial radiation do become temporarily radioactive
Children under the age of 18 should not be near a radiation patient. Radiation can poison the child. While patients are taking radiation treatment the child is exposed to there saliva, sweat, urine, tears any bodily fluid which contains (of course) radiation and cause the child to get very ill.
Yes they very are
Other than Japan most countries haven't been majorly affected by radiation at dangerous levels.
Radiation therapists have a potentially dangerous job since they work with radioactive materials, however, there are numerous safety procedures, and if followed correctly, the job is not particularly dangerous. The median yearly salary for a radiation therapist in the U.S. is $74,813.
Radiation oncology specializes in radiology for cancer patients. Radiation Oncologists use machines to administer radiation to those suffering from all sorts of cancers.