| Paper |
Title |
Page |
| MOPC033 |
Sapphire - A High Peak Brightness X-Ray Source as a Possible Option for a Next Generation UK Light Source
|
142 |
| |
- R. P. Walker, C. Christou, J. H. Han, J. Kay
Diamond, Oxfordshire
- R. Bartolini
JAI, Oxford
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In the UK there is increasing interest in a radiation source which would provide ultra-fast (from 100 fs down to a few fs and potentially below) multi-keV X-ray pulses with high peak brightness, in order to study rapid dynamical processes in electronic and molecular systems, complementary to the newly operational Diamond Light Source which has been designed principally for high time-averaged X-ray brightness. In this paper we present the results of our initial studies for one option for a cost-effective, staged, linac based source suitable as a national facility which can act additionally as a portal to larger X-ray free-electron laser facilities in Europe, the US and Japan.
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| WEPC044 |
Top-Up Safety Simulations for the Diamond Storage Ring
|
2085 |
| |
- I. P.S. Martin, C. P. Bailey, E. C. Longhi, R. P. Walker
Diamond, Oxfordshire
- R. Bartolini, I. P.S. Martin
JAI, Oxford
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| |
To ensure that it is not possible for a train of injected electron bunches to pass down an open beam-line during top-up operation at the Diamond Light Source, an extensive program of tracking studies has been performed. Various error scenarios have been investigated, with realistic magnetic field, trajectory, aperture and energy errors all taken into account. We describe the tracking methods used, scenarios considered and the interlocks required in order to maintain user safety during top-up operation.
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| WEPC057 |
Preparation for Top-up Operation at Diamond
|
2121 |
| |
- R. P. Walker, P. T. Bonner, F. Burge, Y. S. Chernousko, C. Christou, J. A. Dobbing, M. T. Heron, V. C. Kempson, I. P.S. Martin, G. Rehm, R. J. Rushton, S. J. Singleton, M. C. Wilson
Diamond, Oxfordshire
- R. Bartolini
JAI, Oxford
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| |
We report on progress towards top-up operation of Diamond. We describe the extensive safety assessment that has carried out, including the measurements and simulations to assess the potential radiation doses in the case of poor injection efficiency or a top-up "accident", and the various levels of safety measures - procedures, software limits and personnel safety system interlocks - that have been implemented. We describe the top-up control algorithm, the technique used to maintain a given arbitrary filling pattern and the performance in practise. The work carried out to reduce the effect of the injection kickers on the stored beam is described, and the effect of the residual disturbance on user operation is discussed. The modifications to the timing system to provide hardware and software gating signals, and experience with the use of these, are also described.
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