| ln 2 |
| T½ |
| 0.693 |
| T½ |
[7]The detector efficiency is the ratio of the number of gamma rays detected to the number emitted by the sample.
[8]A deuteron is the nucleus of a heavy hydrogen (deuterium) atom and consists of one neutron and one proton.
[9]Not all nuclear reactors are appropriate for this work. For example, reactors designed for electric power production do not have the means built into them for inserting and removing small samples for a “short” period of irradiation.
[10]A scintillation detector is a crystalline device, usually sodium iodide containing a small amount of thallium, which has the property of emitting light when energy is absorbed from nuclear radiation.
[11]After a 10-minute irradiation and a 3-minute delay before counting, corrected for decay to a common time.
[12]One mole is the atomic weight of an atom or molecule expressed in grams, or the weight of 6.02 × 10²³ atoms or molecules per mole.
[13]ln 2 is the natural logarithm of 2.