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BE Newsletter Issue #22 22 October 2018

BE Newsletters - Mon, 22/10/2018 - 16:38
Inside this issue: Editorial - Lars Jensen, Kiosks for printing visitor badges - P. Martel, R. Nunes and T. Riesco BE-ICS, Welcoming new arrivals in the Beams Department - J. Kotzian BE-HDO, Planning Manager and Dashboard - T. Hesselberg and E. Matli BE-OP

Wire Scanner optimization

BE at IPAC - Fri, 14/09/2018 - 15:33
The beam emittance is a crucial parameter of an accelerator to evaluate the performance of the machine. This is in particular important for the HL-LHC upgrade. To compute the beam emittance, the beam profile has to be measured. This can be done with Wire Scanners, but the Wire Scanner setting has to be chosen carefully to obtain accurate results. Systematic measurements of the beam profile and intensity have been done with the Wire Scanner. An empirical formula, which could be used to to predict optimal operational conditions for the Wire Scanner, has been tested and optimal operational photomultiplier gain range has been proposed for the measured beams.

BE Newsletter Issue #21 10 September 2018

BE Newsletters - Mon, 03/09/2018 - 09:21
Inside this issue: Editorial - Lars Jensen, Waste Heat Recovery at CERN - Matias Peljo and Brad Schofield BE-ICS, Mon voyage aux USA - Aurelie Goldblatt, Improvement of Safety Awareness for CERN Beam Facilities - Dario Carloni and Marc Tavlet, First Beam Dynamics Results from SPS Crab Cavities - R. Calaga (BE-RF), L. Carver (BE-ABP) and T. Levens (BE-BI)

Construction of a Kubernetes cluster in the CERN Technical Network and automating its deployment with Ansible

BE at IPAC - Fri, 31/08/2018 - 14:38
This report describes how the cluster deployed in the Technical Network works and how to deploy it in other machines. Firstly, the base technologies such as Docker, Kubernetes, and Ansible are explained. Secondly, the methodology followed during the development of the project is described. Thirdly, how it works and the Ansible play-books structure, and fourthly, the manual in which how to install the cluster and do some usual operations is explained. Finally, the results showing the improvement in time, and the difficulties found during the project.

Remote Forwarding of Human-Machine Interfaces for Industrial Controls

BE at IPAC - Wed, 08/08/2018 - 17:26
This report deals with the remote display forwarding software Xpra and its possible use at CERN. It shows the various possibilities and limits of Xpra when employed within an industrial control setting and concludes about the ability of Xpra as a potential replacement for Windows Terminal Servers

Beam Doc

BE at IPAC - Fri, 03/08/2018 - 14:29
LHCINDIV beam document Phase difference of the RF system in PS during accelerate PS FTA&FTN; line

BE Newsletter Issue #20 14 June 2018

BE Newsletters - Wed, 13/06/2018 - 15:03
Editorial - L. Jensen, Safety management for extended projects - C. Gaignant, G. Rumolo et al, Accelerator Schedule Management - B. Urbaniec, Scintillating fibre beam monitor - I. Ortega Ruiz, Trainees in the BE Department - J. Kotzian, Reminder of deadlines, BE news-letter contacts.

BE Newsletter Issue #19 12 May 2018

BE Newsletters - Mon, 07/05/2018 - 14:19
Inside this issue: Editorial - L. Jensen, The HL-LHC crab cavities - G. Vandoni et al, My work as BE DAO - J. Kotzian, Diamond BLMs for LHC collimation - C. Xu et al, LINAC4 from commissioning to reliability and beam quality run - A. Lombardi et al, "Flip-dot" display in the AD control room - P. Freyermouth, CERN welcome event, Remind of deadlines, BE news-letter contacts.

BE Newsletter Issue #18 12 March 2018

BE Newsletters - Mon, 12/03/2018 - 17:31
Inside this issue: Introduction - Paul Collier; Editorial – Lars Jensen, The HL-LHC Collimation System and the Impedance Challenge – S. Antipov et al BE-ABP; Re-cabling for injectors - S. Easton BE-OP; Teaching a semester in Africa - U. Raich BE-BI; Distributed I/O Tier and radiation-tolerant Fieldbus - G. Daniluk BE-CO; HR matters - J. Kotzian; BE Newsletter contacts.

BE Department Annual Report 2016

BE Annual Reports - Wed, 10/01/2018 - 17:38
The Beams Department hosts the Groups responsible for the beam generation, acceleration, diagnostics, controls and performance optimization for the whole CERN accelerator complex. This Report describes the 2016 highlights for the BE Department.

Simulation of transverse beam splitting using time-dependent dipolar or quadrupolar kicks

BE at IPAC - Thu, 31/08/2017 - 09:59
Two simple systems with high relevance for accelerator physics have been studied in detail in the context of this Summer Student Project. These systems describe the motion under the influence of detuning with amplitude due to non-linear magnets and an external, time-dependent force of dipolar or quadrupolar nature.Two simple systems with high relevance for accelerator physics have been studied in detail in the context of this Summer Student Project. These systems describe the motion under the influence of detuning with amplitude due to non-linear magnets and an external, time-dependent force of dipolar or quadrupolar nature.

Characterization and simulation of a pillbox cavity

BE at IPAC - Fri, 25/08/2017 - 11:37
A cylindrical pillbox cavity is characterized and its principal parameters, such as the cut-off frequencies of the modes, the quality factor and R/Q figure, are calculated. Additionally, these measurements are compared with an analytical analysis and with a simulation with the software CST Studio to determine how precise they are.

Upgrade of CERN OP Webtools IRRAD Page

BE at IPAC - Fri, 18/08/2017 - 19:38
CERN Beams Department maintains a website with various tools for the Operations Group, with one of them being specific for the Proton Irradiation Facility (IRRAD). The IRRAD team use the tool to follow up and optimize the operation of the facility. The original version of the tool was difficult to maintain and adding new features to the page was challenging. Thus this summer student project is aimed to upgrade the web page by rewriting the web page with maintainability and flexibility in mind. The new application uses a server--client architecture with a REST API on the back end which is used by the front end to request data for visualization. PHP is used on the back end to implement the API's and Swagger is used to document them. Vue, Semantic UI, Webpack, Node and ECMAScript 5 is used on the fronted to visualize and administrate the data. The result is a new IRRAD operations web application with extended functionality, improved structure and an improved user interface. It includes a new Status Panel page that has improved the IRRAD operators' efficiency and quality of service.

Study of Nb-Cu 1.3 GHz SRF cavity resonators for future particle accelerators

BE at IPAC - Fri, 18/08/2017 - 15:02
Niobium-coated superconducting radio-frequency cavities have a number of advantages over cavities made from bulk niobium. Cavities coated with high-power impulse magnetron sputtering are tested at CERN in order to optimize the coating and study the Q-slope that limits the performance. To accurately measure the quality factor as a function of accelerating field, it is important to have good matching between an input antenna and a cavity impedance. To improve the matching, a variable coupler that changes the length of the antenna can be used. We have shown that the Q-factor of the input antenna can be changed between $10^7-10^{11}$ by moving the antenna, which should allow to achieve critical coupling with a cavity. This technology could be used in future measurements, so that reflections are always minimized.

BE Department Annual Report 2015

BE Annual Reports - Wed, 31/05/2017 - 14:25
The Beams Department hosts the Groups responsible for the beam generation, acceleration, diagnostics, controls and performance optimization for the whole CERN accelerator complex. This Report describes the 2015 highlights for the BE Department.

BE Newsletter Issue #17 December 2016

BE Newsletters - Sat, 28/01/2017 - 10:01
Inside this issue: Editorial – Ronny Billen My Work Experience at CERN as a Student Trainee – Gerda Powell, Summer Trainee 2015 BE-BI Communication and Informatics for Controls – Fernando Varela, BE-ICS Controls Configuration Service – a challenge in usability – Lukasz Burdzanowski, BE-CO Pushing LEIR limits to new horizons – Giulia Bellodi, Alexander Huschauer BE-ABP Colonne Sécurité Administration & Human Resources Responsibility Changes Newsletter contacts

BE Newsletter Issue #17 December 2016

BE at IPAC - Sat, 28/01/2017 - 10:01
Inside this issue: Editorial – Ronny Billen My Work Experience at CERN as a Student Trainee – Gerda Powell, Summer Trainee 2015 BE-BI Communication and Informatics for Controls – Fernando Varela, BE-ICS Controls Configuration Service – a challenge in usability – Lukasz Burdzanowski, BE-CO Pushing LEIR limits to new horizons – Giulia Bellodi, Alexander Huschauer BE-ABP Colonne Sécurité Administration & Human Resources Responsibility Changes Newsletter contacts

BE Newsletter Issue #16 May 2016

BE Newsletters - Sat, 28/01/2017 - 09:59
Inside this issue: Editorial – Ronny Billen SCADA and Distributed systems – Manuel Gonzalez Berges, BE-ICS-SDS Update on the status of the HIE-Isolde Project – Erwin Siesling, Jose Alberto Rodriguez, BE-OP-ISO PSB brightness curve for LHC beams in the Linac4 era – Elena Benedetto, V. Forte, BE-ABP-HSI, G.P. Di Giovanni, B. Mikulec, BE-OP-PSB, G. Rumolo, BE-ABP-HSC Safety Column – Organiser une visite professionnelle dans une installation faisceau – Safety Unit Responsibilitychanges& Newsletter contacts

BE Newsletter Issue #16 May 2016

BE at IPAC - Sat, 28/01/2017 - 09:59
Inside this issue: Editorial – Ronny Billen SCADA and Distributed systems – Manuel Gonzalez Berges, BE-ICS-SDS Update on the status of the HIE-Isolde Project – Erwin Siesling, Jose Alberto Rodriguez, BE-OP-ISO PSB brightness curve for LHC beams in the Linac4 era – Elena Benedetto, V. Forte, BE-ABP-HSI, G.P. Di Giovanni, B. Mikulec, BE-OP-PSB, G. Rumolo, BE-ABP-HSC Safety Column – Organiser une visite professionnelle dans une installation faisceau – Safety Unit Responsibilitychanges& Newsletter contacts

BE Newsletter Issue #15 December 2015

BE Newsletters - Sat, 28/01/2017 - 09:56
Inside this issue: Editorial – Ronny Billen The PS to SPS Multi-Turn Extraction (MTE): ready for 2016! – Simone Gilardoni, Massimo Giovannozzi, Cedric Hernalsteens, Alexander Huschauer and Guido Sterbini on behalf of the BE-ABP team, – PSB-OP, PS-OP, and SPS-OP teams Gis Portal Racks – Olivier Barrière, BE-CO-IN Electron Cooling at CERN – Gérard Tranquille, BE-BI-EA BE-OP-TI logbook remodelling – Daniel Martin Anido, BE-OP-TI – Emanuele Matli, BE-OP-PSB A new seminar to BE – Get to know some of our brilliant young minds – Eva Barbara Holzer, BE-BI-BL BlonD(e) – Simon Albright, Theodoros Argyropoulos, Juan Esteban Müller, Alexandre Lasheen, Danilo Quartullo, Elena Shaposhnikova & Helga Timko, BE-RF, With special thanks to Danilo Piparo, PH-SFT and Alberto Pace, IT-DSS Safety Column – Ma liste de contrôle avant l’hiver – Safety Unit Responsibility changes & Special Award Newsletter contacts

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