THE INTERNET PLASMA PHYSICS EDUCATION EXPERIENCE
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## Exercise #1

Last, we will look at how increasing the plasma current effects our last performance variable, energy confinement time.

>> Input the same shot numbers 41087, 41152, and 45599. For questions 4 and 5, plot plasma current on the top plot, energy confinement time on the bottom one. Note the energy confinement time at 4 seconds. (You will have to change the x-axis (time) before plotting to see the values around 4 seconds clearly.)

 Shot Number (black line) (red line) (green line) (blue line) (magenta line) Data Type (Top Plot) Plasma Current Beam Input Power Total Input Power Toroidal Magnetic Field Stored Energy Energy Confinement Time Fusion Output Power Data Type (Bottom Plot) (None) Plasma Current Beam Input Power Total Input Power Toroidal Magnetic Field Stored Energy Energy Confinement Time Fusion Output Power From seconds to seconds

Question 4: As the plasma current is increased in each shot what happens to the energy confinement time (at 4 seconds)?

a) The energy confinement time doesn't change.
b) The energy confinement time increases.
c) The energy confinement time decreases.

Question 5: Which performance variables improve as the plasma current is increased?

a) Fusion output power.
b) Stored energy.
c) Energy confinement time.
d) None of them.
e) All of them.