CHOICE NONPRINT REVIEWS  27-1255  [Computer software]   OCT 89 
Electron & positron motion in electric & magnetic fields.               
By John A.Mackinnon  and John E. Sicard; 
Editor: Lottie E. Mackay. (Dist. by Educational Materials & Equipment Co.,
P.O. Box 2805, Danbury, CT 06813) 1989. 
Disk Physics  $57.00 (IBM/PC). 	With manual.




This program calculates the trajectories of electrons and positions in uniform
electric and magnetic fields and displays numerical and graphical results.  Particle
motion may be studied in an electric field only, in a magnetic field only, in parallel
electric and magnetic fields and in perpendicular electric and magnetic fields.
Field strengths, particle types and velocities, and angles of injection may be
changed using a menu.  A three-dimensional graphical simulation that may be ro-
tated can be obtained with ease.  The program could be used in courses ranging in
level from high school to intermediate college. It is easy to use, however,
understanding the theory underlying the more difficult calculations would be a challenge
for high school students and introductory-level college students. Recommended
as a supplement in college courses in which a computer-generated simulation of
charged particle motion would be useful. -D.S. Fielder. SUNY College at
Oneonta
1989
American
Library
Association

727