JAI, Oxford, United Kingdom
CERN, Geneva, Switzerland
Università di Pisa, Pisa, Italy
CERN, Geneva, Switzerland
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| Paper | Title | Page | |||
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| WEPP12 | Simulation of the Signal Processing for the New Interaction Region BPMs of the High Luminosity LHC | 120 | |||
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| New stripline beam position monitors (BPMs) will be installed at the Interaction Regions of the ATLAS and CMS experiments as part of the High-Luminosity upgrade to the LHC. These BPMs will be located in sections of the beamline where the two counter-propagating proton beams co-exist within a single pipe, such that the signal observed on each output port is a combination of the signals generated by each beam. The use of the BPMs as the input for a possible luminosity feedback system places a demanding requirement on the long-term accuracy of the BPMs. Accurate measurement of the position of each beam requires a method for isolating the individual beam signals. A simulation framework has been developed covering all stages of the measurement process, from generation of the signals expected for beams of a given intensity and orbit through to digitization, and has been used to evaluate several candidate methods for extracting the position of each beam in the presence of the unwanted signal from the other. | |||||
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Poster WEPP12 [1.004 MB] | ||||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2020-WEPP12 | ||||
| About • | paper received ※ 02 September 2020 paper accepted ※ 17 September 2020 issue date ※ 30 October 2020 | ||||
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||||
| FRAO02 | Direct Digitization and ADC Parameter Trade-off for Bunch-by-Bunch Signal Processing | 288 | |||
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| With the technology improvements of analog-to-digital converters in terms of sampling rate and achievable resolution, direct digitization of beam signals is of growing interest in the field of beam diagnostics. The selection of a state-of-the-art analog-to-digital converter for such a task imposes a trade-off between sampling frequency and resolution. Understanding the dependency of the system performance on these features is fundamental. This paper presents an analysis and design methodology for such architectures. Analytical tools are used to guide the designer and to estimate the system performance as a function of the analog-to-digital converter performance. These estimations are then validated by Monte-Carlo simulations. As an example of this methodology an analysis for the next-generation electronics of the Large Hadron Collider beam position monitoring system is presented. The analytical model and the results obtained are discussed, along with comparisons to beam measurements obtained at the Large Hadron Collider. | |||||
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Slides FRAO02 [4.539 MB] | ||||
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-IBIC2020-FRAO02 | ||||
| About • | paper received ※ 02 September 2020 paper accepted ※ 16 September 2020 issue date ※ 30 October 2020 | ||||
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | ||||