Making Sense of Radiation
- Nuclear weapon
- Nuclear power plan accidents
- Transportation and waste storage accidents
- Military accidents
Rules for Radiosensitivity...made easy
“The sensitivity of cells to irradiation is in direct proportion to their reproductive activity and inversely proportional to their degree of differentiation.” (Bergonie and Trubondeau)What this means is:
- The faster turnover rate (reproduction rate) a cell has the greater radiation exposure will effect it.
- Unborn children and young children are affected more.
- Effects can be terotgenic or mutagenic.
What this means is:
At lower dose rates more subleathal damage to the cell can repair and cell populations have time to reproduce and repopulate.
Units of radioactivity measurements
The three units of activity that are of concern to patient care are:
- Units of activity.
- Units of radiation dose or deposited energy
- Units of biological dose equivalent.
- Units of activity
- The Becquerel (Bq) or disintegrations per second:
- 1Bq = 1 disintegration per second
- The Curie (Ci)
- 1 Ci = 3.7 x 1010 Bq
Units of radiation dose
Units of radiation that is absorbed by the body is the dose. The units of absorbed dose are:
- The radiation absorbed dose (rad)
- 1 rad = 0.01 Gy
- 1 Gray (Gy) = 100 rad