- #1
Abdurahman
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Hello all physicists,
Actually, I am trying to solve Chen’s book problems which is titled Intro to Plasma Physics Controlled Fusion, 2ed. I encountered many steps that I would like to discuss with you which still not so clear in my mind. Please take a look into that problems either in your library or on >>http://books.google.com/books?id=To...S_7uJoqGzATm7vHCDQ&cd=1#v=onepage&q=&f=false"<<
The points that are for discussion(solved problems):
1-Problem 1-1: we use here the ideal gas equation…what about the Saha equation? It also links the temperature with the density? is n equivalent to n_n in ideal gas vs. Saha equation?
2-Problem 1-2: why we do not also integrate over (dz) since we are in cylindrical coordinates?
3-Problem 1-6: using Poisson equation: does that counterpart the meaning of quasineutrality?!
4-Problem 2-4: how can we have different Larmor radiuses(r_ 1and r_2) for the guiding center?
5-Problem 2-6: is that mathematically acceptable to take the radial component of E without that of B? and how can the radial component of E has a theta basis without radial basis?
6-Problem 2-9:why does the orbit follow this strange trajectory? in calculating the grad-B drift: do we always implement in plasma physics that grad-B is perpendicular to B(just as we assume between E and B for ExB drift) ?
7-Problem 3-4: is it mathematically allowable to cancel B from the cross product (with (n)) with that of the denominator?
8-Problem 3-5: where does this relation of delta(n) and (n’.L) come from?
9-Problem 3-7: why does the phase velocity follow the V_E velocity in direction? In (c): why the diamagnetic drift does not appear directly in the sum of lab frame velocities?
10-Problem 3-9: how can we end up with the change in B while we have just B in Ampere’s law and not grad-B ? the direction of J_D: should not it be in the opposite direction?
Thanks for help very much...
Abdurahman
Actually, I am trying to solve Chen’s book problems which is titled Intro to Plasma Physics Controlled Fusion, 2ed. I encountered many steps that I would like to discuss with you which still not so clear in my mind. Please take a look into that problems either in your library or on >>http://books.google.com/books?id=To...S_7uJoqGzATm7vHCDQ&cd=1#v=onepage&q=&f=false"<<
Homework Statement
The points that are for discussion(solved problems):
1-Problem 1-1: we use here the ideal gas equation…what about the Saha equation? It also links the temperature with the density? is n equivalent to n_n in ideal gas vs. Saha equation?
2-Problem 1-2: why we do not also integrate over (dz) since we are in cylindrical coordinates?
3-Problem 1-6: using Poisson equation: does that counterpart the meaning of quasineutrality?!
4-Problem 2-4: how can we have different Larmor radiuses(r_ 1and r_2) for the guiding center?
5-Problem 2-6: is that mathematically acceptable to take the radial component of E without that of B? and how can the radial component of E has a theta basis without radial basis?
6-Problem 2-9:why does the orbit follow this strange trajectory? in calculating the grad-B drift: do we always implement in plasma physics that grad-B is perpendicular to B(just as we assume between E and B for ExB drift) ?
7-Problem 3-4: is it mathematically allowable to cancel B from the cross product (with (n)) with that of the denominator?
8-Problem 3-5: where does this relation of delta(n) and (n’.L) come from?
9-Problem 3-7: why does the phase velocity follow the V_E velocity in direction? In (c): why the diamagnetic drift does not appear directly in the sum of lab frame velocities?
10-Problem 3-9: how can we end up with the change in B while we have just B in Ampere’s law and not grad-B ? the direction of J_D: should not it be in the opposite direction?
Thanks for help very much...
Abdurahman
Homework Equations
The Attempt at a Solution
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