A novel setup for the pulsing and energy enhancement of a positron beam

16th International Conference on Positron Annihilation

Piochacz, C.^1,2 ; Hugenschmidt, C.^1,2

Physik-Dep. E21, Technische Universität München, James-Franck-Str. 1, D-85748 Garching, Germany^1

FRM II, Technische Universität München, Lichtenbergstr. 1, D-85748 Garching, Germany^2

关键词: Beam energies;    Energy enhancement;    Positron beams;    Pulsed beams;    Repetition rate;    RF fields;    Total energy;    Transversal beams;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/443/1/012093/pdf
DOI  :  10.1088/1742-6596/443/1/012093

来源: IOP

【 摘 要 】

We propose a detailed concept to raise the total energy of a positron beam by an amount of at least 10keV. The setup consists of a combination of a pre- and a main-buncher which is able to convert the continuous remoderated positron beam of NEPOMUC into pulses of about 2.5 ns width with a repetition rate of 5 MHz. This pulsed beam is suited for a new setup which elevates the beam energy by rf-fields. In contrast to existing rf-accelerators, the new setup has only negligible influence on the transversal beam phase space.