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2015 11 11 Week 6 Meeting Dispersion Check sign and scaling of existing dispersion calculation in robdsim Validate energy spread on input beam for...
AndreyAbramov 18 Nov 2015 2015 11 18 Week 7 Meeting From last week: Dispersion Ongoing, see Dispersion tests Check sign and scaling of existing...
ATF2 RHUL Home The ATF2 project is a facility to test the final focus system at either the International linear collider (ILC) or Compact linear collider (CLIC) high...
2015 06 Visit to ATF2 Attending Jochem Laurie Stewart (remote) Setup Installation Photos Detector Description Computers Environment...
ATF2 Visit, September 2016 Resource pages Labook Beamline gallery Gallery of magnetic elements in the ATF2 beamline Summary of the elements and associated...
ATF2 BDSIM Simulation ATF2 model git repository 2015 06 Visit 2016 09 Visit
Software installation Build for the farm and desktop machines in RHUL gcc 4.1.2 SL 5.6 Available packages Beam/optics simulation...
ATF2 Laserwire project People A. Aryshev, G. Blair, S. Boogert, L.Corner, L. Deacon, L. Nevay, K, Kruchinin, R.Walczak at the Accelerator Test Facility 2 with...
ATF2 LW Simulation Electron beam Laser beam Compton Compton scattered photons were generated using BDSIM from a 1.28 GeV electron beam colliding at 90 degrees to...
Idea Implemented hardware software improvements. System integration 1 Boot VME system from new linux computer notes 1 Calibration tone, split into diode and...
To do list General small changes Flag out ATF dependent hardware Add quad pvs to AcqAll Don`t publish orbit with low reference signals Single...
IP Bpm Simulations Results of logging BPMs near the final doublet. The bpm indices are: BPM index QD2AFF 33 SF1FF 34 QF1FF...
Improvements made by Boogert, not how to improve Boogert! 1. Check S band windows computer 2. Shift all code over to atfopr 3. Sort out run scripts...
Cable loss measurement Source offset, connected source via BPM cable to power meter Frequency (MHz) %$P {set}$% (dBm) %$P {out}$% (dBm) 6500...
BDSIM Code Week August 2014 Summary What We`ve Done Monday Tasks are numbered only for identification purposes and not for order of completion or...
Contact Feedback Send comments or queries to laurie.nevay at rhul.ac.uk Or use the tracker to submit issues / requests. News Letter To hear when a new version...
BDSIM Documentation User Manual (HTML) (PDF) User Manual (develop branch) Branch Manual (HTML) Python Utilities manual (HTML) manual (HTML...
BDSIM Download BDSIM is available as a git repository hosted on Bitbucket https://bitbucket.org/jairhul/bdsim . You can download BDSIM by either cloning the repository...
BDSIM Install This page is no longer maintained. For the most up to date installation instructions see http://www.pp.rhul.ac.uk/bdsim/manual/installation.html...
BDSIM Links Links ILC mad8 decks Some BDSIM decks DeckFiles here
Planned Development Whilst BDSIM is ready for studies as it stands now, we are always looking to the future and developing it further for new applications. Below is...
BDSIM Projects European XFEL Lui talk at Topical Workshop on Beam Loss Monitors ILC Collimation System BDSIM studies CLIC Muon Background Simulation...
BDSIM Accelerator Beamline Simulation Tool BDSIM (Beam Delivery Simulation) is a program that uses a suite of high energy physics software including Geant4, https...
Bead Pull Measurements of Microwave Cavities Introduction It is well known that rf cavities can support various modes of electromagnetic oscillations (so called...
BPM requirements in CLIC This page will discuss the CLIC BPM requirements from Beam Dynamics. The CDR states an accuracy / resolution of 5 ...
Beam position monitors BPM introduction Stewart`s BPM handbook BPM paper library Other online resources to cavity BPMs (A. Lyapin) waveform processing...
Generation of THz radiation from dielectric mm scale capillaries with reflectors. Laser Undulator Compact X ray source (KEK LUCX) facility in Japan: Installation of...
Average Position Measurement When the multibunch signal reaches a steady state, a phase advance is seen every sample that is proportional to the bunch separation....
Theoretical Investigation of Multiple Bunch Signals The multiple bunch signal was simulated from simply adding decaying complex oscillators at the separation of the...
15 GHz Prototype Cavity Second Generation Mechanical Design Design notes from first prototype Drawings and models: BPM Assembly https://twiki...
Wakefield Simulation of CTF3 Prototype GdfidL simulation results with 50 m and 100 m mesh steps. Theses results must be altered to the correct bunch length....
Reference Cavity The BPM was connected to 2 ports of the VNA and S parameters were measured. Vacuum seals were used this time. Monopole Mode S Parameter...
CTF3 Cavity Pick up to Waveguide Spacing Cross Coupling The separation between the pick up in port number 2 and the wall of the waveguide was varied. The curve for...
Feedthrough Simulations The results of the RF measurements showed that the external Q of the BPM was much higher than anticipated. A study was done to reduce...
Preliminary Simulation The geometry below was simulated with CST, where the return loss was monitored and the level and the resonant frequency of the signal was...
IF Filter Design Information This bandpass filter design is based on a LP321010 prototype which has maximum ringing of 1% outside the defined time and frequency...
Metrology Reports Body (Position Cavity) Body (Position Cavity) Radius Body (Position Cavity) Body (Position Cavity) Radius Body (Reference...
CLIC Muon Background Simulation Using BDSIM This is an ongoing project to simulate the muon flux into the CLIC detector due to beam halo collimation. All data presented...
Reference Cavity The dimensions of the first copper prototype were known to be incorrect. Predicting a frequency drop of ~330 MHz and a loaded Q drop of 160....
Position Cavity Waveguide Geometry To improve simulation time, the coaxials were ignored and the waveguide end cut short with ports added at the end of the waveguide...
Digitiser Effects In order to investigate the effect of the digitiser specifications, the noise and non linearities of the electronics were removed. This allowed the...
Signal Processing Simulation Parameters General Parameter Value Bunches per train 150 Bunch separation/ns 0.667 Multiple bunch charge/nC/bunch...
Coupler Position Simulations The full geometry of the position cavity was used in a lossy eigenmode computation to simulate the effects of moving the coupler. The...
Electronics Simulation RF Filter Sweeps of the RF filter bandwidth were simulated to see the effect on the signal to noise ratio, the signal rise time and the maximum...
Modified Reference Cavity Measurements at CERN The signal was excited using a weakly coupled probe and measured from the output feedthroughs. We only had one spacer...
Design Notes Mechanical design Cavity is split in two which could create problems in terms of alignment of the two halves Simulations may be required in...
Cavity Sensitivity Estimates Position Cavity The dipole mode sensitivity was estimated from the following formula, the measured external quality factor of 617 and...
BDSIM Gmad decks CLIC beam delivery system ILC BDS and extraction line, v2006e ATF ATF extraction line. ATF2 v3.x
Electro Optical Beam Position Monitors Introduction A new initiative to upgrade the CERN Head Tail monitors for the SPS and LHC has stimulated a collaboration between...
AndreyAbramov 28 Nov 2016 FCC Studies Overview The Future Circular Collider (FCC) study is designed to investigate concepts and designs for a next...
A quick GdfidL tutorial GdfidL license is installed on the Faraday Cluster. What is this software? GdfidL is a 3D electromagnetic simulation code written in...
High Luminosity LHC Links Under construction LHC General High Luminosity Simulation Tools SixTrack LHC Collimation Project Page Main Sixtrack Twiki...
High Luminosity LHC Simulation Log Book General Guides LHC Parameters, Naming Details 20140403 LHC Optics 20141111 LHC 3.5TeV Optics 2014 MPhys...
High Luminosity LHC Group Members Contact Details Stephen Gibson Picture Laurie Nevay Picture contact laurie.nevay at rhul.ac.uk...
High Luminosity Upgrade to the Large Hadron Collider HiLumi LHC LHC Backgrounds People Contact Details `The Large Hadron Collider (LHC) is the largest...
Laserwire Introduction The aim of the Laser Based Beam Diagnostics (LBBD) Collaboration was to study the feasibility of laser based diagnostics tools for a future...
Novel THz radiation source based on compact linear accelerator. Marie Curie Research Fellow: Konstantin Lekomtsev Research objectives: to investigate Cherenkov...
15 GHz CLIC Cavity BPM Second Generation First Generation Drawings and models Assembly STEP File Mechanical drawings of the second prototype Manufacture...
File 1 BUGS muons e 1500GeV.dat: Muons at the entrance to QD0 from 1500 G eV halo electrons hitting YSP1. File format: Energy GeV x m y m x` y` partID z...
Pyoptic (PYthon OPTICs) Pyoptic is python (scipy, matplotlib, tvtk) based optical simulation system. Basic information, program design page Ray tracing...
Serpentine A Python based Charged Particle Tracker The goal of project is to build a charged particle tracker somewhat similar in capability to Lucretia. Despite...
High Performance Simulations of 704 MHz Superconducting Cavities Mesh files Four cavity cryomodule incorrect interconnection region (2X as long as the design)...
John Adams Institute for Accelerator Science Introduction The John Adams Institute is a collaboration between groups at Royal Holloway, the University of Oxford and...
Number of topics: 63

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