. The Bell System technical journal . /^£P£LL£R P£SOA^/iTOfl OUTPUT L//V£Fig. 8—The elements of a modern reflex tube (Pierce). ELECTRON BALLISTICS IX IIIGII-FREQrEXCY FIELDS 341 penetrating the tield to a greater extent and waiting, as it were, for theslower electrons which follow to catch up. The electrons which pass acrossthe gap while the field is becoming progressively more accelerating arespread out. If the retarding field is uniform it can be likened to the earthsgravitational field and the phase-focusing paths on our time-distance plot areparabolas. Figure 9, taken from Pierces paper, i
. The Bell System technical journal . /^£P£LL£R P£SOA^/iTOfl OUTPUT L//V£Fig. 8—The elements of a modern reflex tube (Pierce). ELECTRON BALLISTICS IX IIIGII-FREQrEXCY FIELDS 341 penetrating the tield to a greater extent and waiting, as it were, for theslower electrons which follow to catch up. The electrons which pass acrossthe gap while the field is becoming progressively more accelerating arespread out. If the retarding field is uniform it can be likened to the earthsgravitational field and the phase-focusing paths on our time-distance plot areparabolas. Figure 9, taken from Pierces paper, illustrates this while is such a plot taken from the paper by Harrison. One interesting 1r>Vo PETUffA/^ //V ^/>££0 x/o />£ ri/PA/S zr<iro P£rU/9A/To //t^ T/zW^ To //^ 7-/M£ T< To Fig. 9—The gravitational-field analogy to reflex bunching (Pierce).
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1