isw wrote:
With electrostatic (but not magnetic) deflection, there is an increase
in the momentum of the electrons -- they are accelerated sideways while
traversing the deflection plates.

I'll show my ignorance: why doesn't magnetic deflection cause an increase
in momentum? Seems to me the electrons would be accelerated sideways while
traversing the magnetic field.

--
If John McCain gets the 2008 Republican Presidential nomination,
my vote for President will be a write-in for Jiang Zemin.