Title of Document: LONGITUDINAL SPACE-CHARGE WAVES INDUCED BY ENERGY MODULATIONS Brian L. Beaudoin, Master of Science, 2008 Directed By: Professor Patrick G. O’Shea and Professor Rami A. Kishek Department of Electrical and Computer Engineering High intensity beams that are space-charge dominated are important for applications such as free electron lasers that require high intensity and low emit...

A physically valid theory of partial dischargetransientshas beendeveloped through a field theoretical approach. The theory is based upon the concept of the charge induced upon the detecting electrode by the partial discharge. This induced charge consists of a component associated with the actual space charge in the void, and one related to changes in the polarization of the bulk dielectric. The...

Why two formulas for the electric field intensity and the magnetic induction created by a uniformly moving point charge? Abstract A derivation of the electric field intensity and of the magnetic induction generated by a uniformly moving point charge is presented. The derivation is in accordance with the fact that the electric and magnetic fields of moving charge are propagating from the charge ...

We determine the mobility of positive and negative charge carriers in a soluble green-emitting alternating block copolymer with a methoxy bi-substituted conjugated segment. The negative charge carrier mobility of 6 10 11 cm/V.s is directly determined using space-charge-limited current analytical expressions. Positive charge carrier transport is also space-charge-limited, with a mobility of 1 10...