Development of polarized ion source for the JINR accelerator complex

16th Workshop on High Energy Spin Physics

Fimushkin, V.V.^1 ; Kovalenko, A.D.^1 ; Kutuzova, L.V.^1 ; Prokofichev, Yu V.^1 ; Shutov, B.^1 ; Belov, A.S.^2 ; Zubets, V.N.^2 ; Turbabin, A.V.^2

Joint Institute for Nuclear Research, Joliot-Curie 6, Moscow region, Dubna

141980, Russia^1

Institute for Nuclear Research of RAS, prospect 60letiya Oktyabrya, 7A, Moscow

117312, Russia^2

关键词: Accelerator complex;    Atomic hydrogen;    Charge exchanges;    Deuterium ion beams;    High frequency HF;    Polarized ion source;    Polarized proton beams;    Repetition rate;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/678/1/012058/pdf
DOI  :  10.1088/1742-6596/678/1/012058

来源: IOP

【 摘 要 】

Status of the JINR polarized ion source development is described. The source is under tests at the test-bench of LHEP, JINR. A charge-exchange plasma ionizer has been tested initially without a storage cell in the ionization region. An unpolarized deuterium ion beam with peak current of 160 mA, 23 keV energy, pulse duration of 100 μs and repetition rate of 1 Hz has been extracted from the ionizer. With a free polarized atomic hydrogen beam injected into the ionizer a polarized proton beam with peak current of 1.4 mA has been obtained. The nearest plans for the source development include tests of the ionizer with the storage cell and tuning of the high frequency transition units installed in their operating position with a Breit-Rabi polarimeter.