Title :
A novel concept for a lithium lens exciter
Author :
Karady, G.G. ; Thiessen, H.A.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
A new circuit concept for the exciter to produce a 100-kA current pulse with a 1-ms flat top is presented. In every half-cycle a capacitor generates a current pulse. A thyristor-controlled rectifier charges the capacitor to the supply voltage, and a thyristor switch discharges it through a pulse transformer which supplies the lens. A zinc-oxide surge arrester, connected in parallel with the pulse transformer, produces the current flat top. The control of a larger current pulse with a nonlinear component improves the lens performance. The exciter can be built with commercially available components.<>
Keywords :
focusing; 1-ms flat top; 100-kA current pulse; Li lens exciter; ZnO/sub 2/ surge arrester; capacitor; focusing; half-cycle; lens performance; pulse transformer; supply voltage; thyristor switch; thyristor-controlled rectifier; Capacitors; Lenses; Lithium; Pulse circuits; Pulse generation; Pulse transformers; Rectifiers; Surges; Switches; Thyristors;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.165211
