Bunching and chopping for tandem accelerators. Part I: Bunching

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:499

Article

Lobanov, Nikolai R.¹  Linardakis, Peter¹  Tempra, Daniel¹ 

[1] Australian Natl Univ, Res Sch Phys & Engn, Dept Nucl Phys, Canberra, ACT 2601, Australia

关键词: Tandem accelerator;    Beam bunching;    Longitudinal phase space;   

DOI  :  10.1016/j.nimb.2021.02.013

来源: Elsevier

【 摘 要 】

A pulsed system capable of delivering up to a few microamps with a mass range 1-100 u, and with pulse width of bursts of ions approximately 1-2 ns is described. Critical design limitations are discussed to show the overall approach to meet a number of experimental requirements. The system consists of a SNICS negative ion source, a low energy buncher which uses the entire tandem electrostatic accelerator as a drift path to produce bunched ion bursts at the targets or linac entry, and high energy choppers. The buncher consists of a single acceleration gap with aligned removable grids. A detailed analysis is presented of the factors limiting the system performance, with the aim to lessen their effect on the ultimate minimum longitudinal phase space of the ion burst.

【 授权许可】

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