- 1A parameter of an oscillatory system or device, such as a laser, representing the degree to which it is undamped and hence expressing the relationship between stored energy and energy dissipation.More example sentences
- This relationship leads to the quality factor, Q, being a constant.
- This so-called quality factor, or ‘Q,’ is much higher than the value of about 50 achieved by the Cornell team, although the NIST researchers had reached a Q of only 800 at the time they submitted their paper to PRL.
- The cantilever oscillation is anharmonic and asymmetric when the quality factor is low, in contrast with TM AFM in air, where the cantilever oscillation is approximately sinusoidal and symmetric.
- 1.1A figure expressing the ability of ionizing radiation to cause biological damage, relative to a standard dose of X-rays.More example sentences
- The SI unit for dose equivalent is the sievert, which is measured in grays times a quality factor for the type of radiation and the weighting factor for the tissue irradiated.
- The dose equivalent in rems is numerically equal to the absorbed dose in rads multiplied by the quality factor, which, for most medical radiation, is one.
- Fast moving gamma photons have a quality factor of about one, whereas alpha particles (which lose all of their energy over a very small path length) have quality factors nearer 20.
More definitions of quality factorDefinition of quality factor in:
- The British & World English dictionary