• A.V. Semenov, V.G. Cherepkov, V. Klyuev, E.S. Konstantinov, E.A. Kuper, V.R. Mamkin, A.S. Medvedko, P.I. Nemytov, V.V. Repkov, V.B. Reva, R.A. Salimov, D.V. Senkov, V.A. Vostrikov
  BINP SB RAS, Novosibirsk

An elec­tro­stat­ic tan­dem ac­cel­er­a­tor with 1.25 MV at the high volt­age ter­mi­nal was de­signed, as­sem­bled and suc­cess­ful­ly com­mis­sioned at BINP. The ac­cel­er­a­tor of ELV-type will be used as in­jec­tor for can­cer ther­a­py fa­cil­i­ty by car­bon ions beams. The 10 keV beam of neg­a­tive car­bon ions with cur­rent up to 100 mkA is in­ject­ed into the tan­dem and charge ex­change in the vac­u­um heat in­su­la­tion mag­ne­sium vapor tar­get. The re­sults of com­mis­sion­ing tests and beam pa­ram­e­ters mea­sure­ments are pre­sent­ed.

• J. Dietrich, V. Kamerdzhiev
  FZJ, Jülich
• M.I. Bryzgunov, A.D. Goncharov, V.M. Panasyuk, V.V. Parkhomchuk, V.B. Reva, D.N. Skorobogatov
  BINP SB RAS, Novosibirsk

The 2 MeV elec­tron cool­ing sys­tem for COSY-Jülich was pro­posed to fur­ther boost the lu­mi­nos­i­ty even in pres­ence of strong heat­ing ef­fects of high-den­si­ty in­ter­nal tar­gets. The pro­ject is fund­ed since mid 2009. Man­u­fac­tur­ing of the cool­er com­po­nents has al­ready begun. The space re­quired for the 2 MeV cool­er is being made avail­able in the COSY ring. The de­sign and con­struc­tion of the cool­er is ac­com­plished in co­op­er­a­tion with the Bud­ker In­sti­tute of Nu­cle­ar Physics in Novosi­birsk, Rus­sia. The 2 MeV cool­er is also well suit­ed in the start up phase of the High En­er­gy Stor­age Ring (HESR) at FAIR in Darm­stadt. It can be used for beam cool­ing at in­jec­tion en­er­gy and is in­tend­ed to test new fea­tures of the high en­er­gy elec­tron cool­er for HESR. Two new pro­to­types of the mod­u­lar high volt­age sys­tem were de­vel­oped, one con­sist­ing of gas tur­bines the other based on in­duc­tance-cou­pled cas­cade gen­er­a­tors. The new 2 MeV elec­tron cool­er is de­scribed in de­tail and tests of com­po­nents are re­port­ed.