Reference no: EM132611994

Question 1: A 20 kev deuteron in a large mirror fusion device has a pitch angle of 450 at the mid plane, where B = 0.7T compute its Larmor radius.

Question 2: A Plasma with an isotropic velocity distribution is placed in a magnetic mirror trap with mirror ratio Rm = 4. There are no collision, so the particles in the loss come simply escape, and the next remain trapped. What fraction is trapped?

Question 3: In plasma heating by adiabatic compression, the invariance of require that KT1 increases as B increases. The magnetic field, however cannot accurate particles because the Lorentz force q(V x B) is always perpendicular to the velocity. How do the particles gain energy?

Question 4: A hydrogen plasma is heated by applying a radio frequency wave with E perpendicular to B abd with an angular frequency w = 109 rad/sec. The combining magnetic field is 1 T. Is the motion of a the e-s and b ions in resonance to this wave adiabatic?

Question 5: A 1-kev proton with V11 = 0 in a uniform magnetic field β = 0.1 T is accelerated as B is slowly increased to 1 T. It then makes an elastic collision with a heavy particle and changes direction so that V1 = V11. The β field is then slowly decreased back to 0.1 T. What is the portions energy now?