The energy confinement time is simply the time it takes the fusing plasma to expand.
Cowley says a successful fusion plant will have a confinement time of around three seconds.
This is the typical solution to the problem of confinement time.
But the maximum confinement time they could achieve was around 1 millisecond.
As such, the confinement time, or minimum burn time, can be as short as 20 × 10−12 second.
The Lawson criterion provides density and confinement time requirements for practical fusion reactors.
As such, the confinement time, or minimum burn time, can be as short as 20 × 10−12 second.
At last, confinement time had entered the range needed for ignition; this was a major milestone in fusion research.
Optimal combinations of magnetic shape, temperature and density profiles as well as the confinement time are identified as advanced regimes.
The energy confinement time must then be at least one second i.e., the energy in the plasma must be replaced every second.
Suppression of plasma instabilities is a key issue to improve the confinement time of controlled thermonuclear fusion with Tokamaks.
