Title of article
Beam optimization of helium injector for coupled RFQ–SFRFQ linac
Author/Authors
Xia، نويسنده , , W.L. and Wang، نويسنده , , Z. and Lu، نويسنده , , Y.R. and Chen، نويسنده , , J. and Zhao، نويسنده , , J. and Ren، نويسنده , , H.T. and Zhu، نويسنده , , K. and Peng، نويسنده , , S.X and Chen، نويسنده , , J.E.، نويسنده ,
Pages
7
From page
55
To page
61
Abstract
The coupled RFQ–SFRFQ (CRS) cavity designed in Peking University is a new type linac that coupled radio frequency quadrupole (RFQ) and separated function radio frequency quadrupole (SFRFQ) structure into a single cavity. An upgraded helium injector for the CRS cavity consisting of a 2.45 GHz permanent magnet electron cyclotron resonance (ECR) ion source and a 1.16 m low energy beam transport (LEBT) has been constructed and tested. The beam conditions of the injector were carefully optimized to satisfy the requirements of the CRS linac, the corresponding control system and a two-dimension scanner code CRSv1.0 were developed for optimizing the beam transmission from LEBT section to the entrance of the CRS cavity. The beam transmission efficiency has reached to approximately 87.5% as well as the optimized operating parameters were obtained by means of the scanner code.
Keywords
CRS , Helium injector , CONTROL SYSTEM , Beam optimization
Journal title
Astroparticle Physics
Record number
2012304
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