Fall time

Cooldown is the time period in which a size drops to a certain value.

Music

The term cooldown or Decay Time is used in music and acoustics, as all musical instruments resonate after the beating and refers to the time until the echo is no longer almost audible. In room acoustics, the reverberation time is referred to herewith. This is the time that elapses until the sound has become so reduced by 60 dB to the thousandth part of the initial sound pressure.

Radioactivity, Radiation Medicine and Nuclear Engineering

The decrease in the activity of a given radionuclide decay follows the law and is described by a half-life.

In the nuclear decay time means the period must stay the used fuel assemblies in the spent fuel pool to produce so little heat that they may be transported by Castor. The decay is not realized by a half- time recordable as it is a mixture of many different radionuclides.

When contamination with relatively short-lived radionuclides, the radioactive decay is used as a decontamination method: The material is so long stored safely until the activity has dropped to a safe level and the material eg can be enabled or safely disposed of conventionally. Even with other radioactive materials (eg medical preparations ) denotes the cooldown period after which the remains may be disposed of as normal. This is either dependent on the dose rate or in small quantities according to a subjective scale. This 10 half hours to wait in the rule, as hereinafter the original dose has decreased by a factor of 1024.

The principle of decay is also based on the safe enclosure from the dismantling of nuclear power plants. After the decay, the handling is very simplified.

Computer Games

Cooldown (also cooldown or cooldown ) called in computer games, the time that must elapse after the onset of an ability of an object or an action, to this (r ) can be used again.

Other meanings

In sizes decrease with a decay constant, it is called Cooldown:

• Signal decrease of NMR signals
• Decay of bells
• Earthquake