The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - UNPB AU - Derbenev, Y.S. ED - Akers, Evelyn (Jefferson Lab), Satogata, Todd Satogata (Jefferson Lab), Schaa, Volker RW Schaa (GSI) TI - Matched Electron Cooling J2 - Proc. of COOL2015, Newport News, VA, USA, September 28 - October 2, 2015 C1 - Newport News, VA, USA T2 - International Workshop on Beam Cooling and Related Topics T3 - 10 LA - english AB - Electron cooling of an ion beam is considered in a ring with coupled optics matched with the solenoid of a cooling section. Betatron motion of ions is then represented as a superposition of the two independent circular modes of the two uncorrelated uncoupled canonical emittances, similar to the drift and cyclotron modes of an electron beam in a solenoid. Then cooling of the ion cyclotron mode is not limited by the ion space charge. Cooling of the drift mode is attained by use of dispersion of both beams introduced to the solenoid section. Ion optics organized in this way allows one to drastically diminish the space charge impact on the 4D emittance at beam stacking in a booster and cooling in a collider ring, thus enhancing the cooling rate. Equilibrium due to the IBS is estimated. We also evaluate the gain in luminosity by means of a round to flat beam transformation around the Interaction Point. PB - JACoW CP - Geneva, Switzerland ER -