In internal radiation therapy a source of radioactivity is surgically placed inside the body near the cancer
There are two main types of radiation: External Radiation External radiation is the most common type of radiation, typically given after lumpectomy and sometimes, mastectomy. Internal Radiation Internal radiation is a less common method of giving radiation. It is being studied for use after lumpectomy.
Gamma radiation is not easily absorbed by the human body(not as easily as alpha and beta anyway). So it can penetrate to the internal organs and harm them.
gamma if you're counting external damage, and alpha if you're counting internal
Energy can enter the earth system from internal sources through convection and from external sources through radiation from the Sun (solar energy).
Refraction and total internal reflection of sun's radiation in fine droplets of water cause rainbow formation
Cosmic radiation External terrestrial and internal radiation
The advantage of internal radiation therapy is that it concentrates the radiation near the cancer and lessens the chance of damage to normal cells
Internal radiation therapy
There are two main types of radiation: External Radiation External radiation is the most common type of radiation, typically given after lumpectomy and sometimes, mastectomy. Internal Radiation Internal radiation is a less common method of giving radiation. It is being studied for use after lumpectomy.
Patients receiving internal radiation therapy do become temporarily radioactive
Radiation therapy is delivered via external radiation or via internal radiation therapy (the implantation/injection of radioactive substances).
Yes
Yes
internal conversion
Yes
Yes
- Radiation of cosmic origin- Radiation from radioactive elements (and decay products) of the Earth- Internal radiation of organisms