Contribution to a conference proceedings/Contribution to a book

GSI-2025-00593

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png On the UNILAC Pulsed Gas Stripper at GSI

Gerhard, P. (Corresponding author)GSI* ; Maier, M.GSI*

2022
JACoW Publishing Geneva, Switzerland

Please use a persistent id in citations: doi:10.18429/JACOW-LINAC2022-MOPORI13  doi:10.15120/GSI-2025-00593

Abstract: The UNILAC will serve as injector linac for heavy ion beams for the future FAIR, with the commissioning being anticipated in 2025. One of the crucial steps in the course of acceleration along the UNILAC is the stripping of the ions by a gas stripper in front of the main linac. Its efficiency is decisive in reaching the intensities required and may be increased by more than 50% by introducing hydrogen as stripping target, instead of the nitrogen used so far. This requires the stripper to be operated in a pulsed mode, since otherwise the pumping speed is not sufficient to maintain suitable vacuum conditions. The proof of principle was demonstrated in 2016*. A dedicated project aims for a setup suitable for routine operation. Main issues are safety, reliability and automated operation. We report on the development done since 2016 and give an overview of the realisation coming within the next few years. Results from systematic measurements on the properties of the valves and their impact on the properties of the stripping target are presented.

Keyword(s): Accelerator Physics ; Technology

Note: "Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI."

---

Contributing Institute(s):

1. UNILAC Post Stripper Upgrade (PSU)

Research Program(s):

1. 899 - ohne Topic (POF4-899) (POF4-899)

Experiment(s):

1. no experiment theory work (theory)

Appears in the scientific report 2022

---

Database coverage:
;

---