Author/Authors :
Seidl، نويسنده , , P.A and Celata، نويسنده , , C.M and Chupp، نويسنده , , W.W and Faltens، نويسنده , , A and Fawley، نويسنده , , W.M and Ghiorso، نويسنده , , W and Hahn، نويسنده , , T. and Henestroza، نويسنده , , E and MacLaren، نويسنده , , S and Peters، نويسنده , , C and Grote، نويسنده , , D.P and Haber، نويسنده , , I، نويسنده ,
Abstract :
Transverse beam combining is a cost-saving option employed in many designs for induction linac heavy-ion fusion drivers. The resultant transverse emittance increase, due partly to anharmonic space charge forces, must be kept minimal so that the beam remains focusable at the target. A prototype combining experiment has been built. Four sources each produce 4.5 mA Cs+ beams at 160 keV. Focusing upstream of the merge consists of four quadrupoles and a final combined-function element (quadrupole and dipole). Due to the small distance between beams near the merge (∼3–4 mm), the electrodes of the final element for each beam are a cage of small rods, each at a different voltage. Recent results are presented along with plans for modifications and future measurements.
