Open AccessDOI
Vacuum System for the Diamond Light Source DDBA Upgrade
Matthew Cox,Martin Duignan,Richard Howard,Simon Lay,Andrew Miller,Hugo Shiers,Andrew Wolfenden +6 more
- pp 3587-3589
TLDR
One cell of the diamond light source (Diamond) storage ring was upgraded in late 2016 to a Double Double Bend Achromat (DDBA) configuration to provide an additional mid-achromat insertion device straight as discussed by the authors.Abstract:
One cell of the Diamond Light Source (Diamond) storage ring was upgraded in late 2016 to a Double Double Bend Achromat (DDBA) configuration to provide an additional mid-achromat insertion device straight. For practical reasons it was decided to use discrete nonevaporable getter (NEG) pumps rather than NEG coatings. This paper outlines the vacuum design of the upgrade, the reasons for the choices made and the vacuum simulation tools used as well as describing the vacuum system engineering, assembly, installation and commissioning. The measured vacuum performance is found to be in close agreement with the simulations and a simple expression is derived for the beam gas lifetime.read more
Citations
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Electron Beam Commissioning of the DDBA Modification to the Diamond Storage Ring
Ian Martin,Marco Apollonio,Christopher Bailey,Riccardo Bartolini,Chris Christou,Richard Fielder,Matthew Furseman,Eirini Koukovini-Platia,Thapakron Pulampong,Guenther Rehm,Will Rogers,Beni Singh +11 more
TL;DR: In this paper, the diamond storage ring has been modified by replacing one of the existing double bend achromat (DBA) cells with a double-DBA (DDBA) cell, which represents the largest modification to the storage ring since it was first commissioned in 2006 and was installed and fully commissioned during an 8 week shutdown in autumn 2016.
References
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Journal ArticleDOI
Design modelling and measured performance of the vacuum system of the Diamond Light Source storage ring
Oleg B. Malyshev,M.P. Cox +1 more
TL;DR: In this article, a one-dimensional diffusion model of the diamond light source storage ring vacuum system is described and its predictions are compared with actual measured static (without beam) and dynamic (with beam) pressures over more than 2000 Ah of beam conditioning at 3 GeV.
Electron Beam Commissioning of the DDBA Modification to the Diamond Storage Ring
Ian Martin,Marco Apollonio,Christopher Bailey,Riccardo Bartolini,Chris Christou,Richard Fielder,Matthew Furseman,Eirini Koukovini-Platia,Thapakron Pulampong,Guenther Rehm,Will Rogers,Beni Singh +11 more
TL;DR: In this paper, the diamond storage ring has been modified by replacing one of the existing double bend achromat (DBA) cells with a double-DBA (DDBA) cell, which represents the largest modification to the storage ring since it was first commissioned in 2006 and was installed and fully commissioned during an 8 week shutdown in autumn 2016.
Journal ArticleDOI
Storage ring vacuum system pressure modelling at Diamond
TL;DR: In this article, two complementary vacuum system simulation programs, "MCTPVac" and "Pressure Profile", have been developed and tested at Diamond and used to model sections of the diamond storage ring.