1. The units of the decay constant are s " 1. 2. Particular radionuclides decay at different rates, so each has its own decay constant . 3. The notation ? for the decay constant is a remnant of the usual notation for an eigenvalue. 4. If we had enough information to calculate the decay constant , we could narrow down some more. 5. The decay constant is a function of the material's relative dielectric constant and its bulk resistivity. 6. Any one of decay constant , mean lifetime, or half-life is sufficient to characterise the decay. 7. The half-life can be written in terms of the decay constant , or the mean lifetime, as: 8. For an empty cavity, the decay constant is dependent on mirror loss and various optical phenomena like scattering and refraction: 9. For sufficiently large deviations of \ omega _ { p }, the decay constant \ alpha can become purely imaginary since 10. The THz response also contains \ gamma ( \ omega ) that stems from the decay constant of macroscopic THz currents.
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