Half life and Fission test Flashcards
1
Q
Absorbed dose equation
A
D = E/M
D- absorbed dose
E- energy
M- mass
2
Q
How to convert from atomic mass units to kg
A
x 1.66x10-27
3
Q
How to convert from kg to atomic mass units
A
divide 1.66x0-27
4
Q
How to convert from meV to atomic mass units
A
divide by 931
5
Q
How to convert from atomic mass units to meV
A
x 931
6
Q
How to convert eV to J
A
x 1.6x10-19
7
Q
How to convert J to eV
A
divide 1.6x10-19
8
Q
What is mass defect
A
the difference between the mass of the nucleus and the sum of the mass of its parts
9
Q
What is E =Mc
A
E= Energy released M= mass defect C= speed of light in a vaccum squared
10
Q
What is E =Mc
A
E= Energy released M= mass defect C= speed of light in a vacuum squared
11
Q
What is mass difference
A
total mass before fission - total mass after fission
12
Q
Charge of a proton + electron
A
+/- 1.60 x 10-19
13
Q
Rate of decay equation (Activity)
A
A = Ao (1/2)n
A= activity or count rate of a radioactive sample Ao= original activity or count rate of a radioactive sample n= number of half lives elapsed
14
Q
Equation of half lives
A
n = T/t(1/2)
n= number of half lives elapsed T= period of time a radioactive sample has decayed t(1/2)= half life of radioactive sample
15
Q
What is the activity of 1 bq (becquerel)
A
1 decay per second
