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Shishov, Yu. A.

Paper Title Page
E-02 Simulation and Design of Tubular Electron String Ion Source 321
 
  • D. E. Donets, E. D. Donets, E. E. Donets, V.M. Drobin, A.V. Shabunov, Yu. A. Shishov, V.B. Shutov, E.M. Syresin
    JINR, Dubna
  • A.E. Dubinov, R.M. Garipov, I.V. Makarov
    VNIIEF, Sarov
 
 

The so-called re­flex mode of Elec­tron String Ion Source (ESIS) op­er­a­tion has been under in­tense study, both ex­per­i­men­tal and the­o­ret­i­cal at JINR dur­ing the last decade. The idea of using a tubu­lar elec­tron string ion source (TESIS) has been put for­ward re­cent­ly to ob­tain 1- 2 or­ders of mag­ni­tude in­crease in the ion out­put as com­pared with ESIS. The pro­ject is aimed at cre­at­ing TESIS and study­ing an elec­tron string in the tubu­lar ge­om­e­try. The new tubu­lar source with a su­per­con­duct­ing solenoid up to 5 T should be con­struct­ed in 2010. The method of the off-ax­is TESIS ion ex­trac­tion will be used to get TESIS beam emit­tance com­pa­ra­ble with ESIS emit­tance. It is ex­pect­ed that this new TESIS (Krion T1) will meet all rigid con­cep­tu­al and tech­no­log­i­cal re­quire­ments and should pro­vide an ion out­put ap­proach­ing 10 mA of Ar16+ ions in the pulse mode and about 10 μA of Ar16+ ions in the av­er­age cur­rent mode. An­a­lyt­i­cal, nu­mer­i­cal study of the tubu­lar elec­tron strings and the de­sign of the TESIS con­struc­tion are given in this re­port. The ex­per­i­ments with quasi tubu­lar elec­tron beams per­formed on the mod­i­fied ESIS Krion 2 are also dis­cussed there.