00:02
Cell survivor curves are a graph showing you the percentage or fraction of surviving cells after they have been exposed to some type of radiation.
00:13
So the x -axis is going to show us the different dosages of radiation and the y -axis is the fraction of cells.
00:21
So this graph can give you some really important information used to figure out the lethality of different types of radiation.
00:29
The first thing i'll show you how to find is the dq or the quasi -threshold dose, otherwise known as the sublethal dose.
00:39
The first thing you have to do is draw a horizontal line across where the graph shows 100 % of the cells have survived.
00:49
And then you draw a second line coming off the straight portion of the graph.
00:59
And where these two lines intersect is your dq.
01:03
So you would take that intersection down to your x -axis.
01:11
And this dose here, which you would read off the scale, is your dq.
01:20
Another dosage that's often used, or this graph is often used to find, is the d -37, which is also known as the d -sub -0...