This type of radiation could raise your chances ... equal to about 7 years of background radiation Head: 4 mSv, equal to about 16 months of background radiation For most people, a CT scan doesn ...

it is 4.5 billion years. Potassium 40, the main source of radioactivity in our bodies, has a half-life of 1.42 billion years. Types of Radiation The term "radiation" is very broad, and includes such ...

including the type, size, and location of the cancer. External beam radiation therapy won't make you radioactive, so you can safely spend time around other people. Internal radiation therapy.

The open window allows all types of radiation through ... the film to tell what kinds of Beta radiation they have been exposed to. Windows 4,5 and 6 are of different metals (including lead ...

The kind of radiation we recommend depends on the type of bile duct cancer, the location of the tumor, and whether it has spread. External-beam radiation therapy is the most common type of radiation ...