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Mr Pawel Garsztka (ESS ERIC)POSTER
The Survey Alignment and Metrology team at ESS is capable of providing a digital 3D representation of the on-going construction and installation activities to many different users. During the design phase, for integration purposes, to support as-built documentation or simply to visualize progressing installation works, this tool becomes crucial for such a complex project.
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Field data are... -
Stephen Kyle (University College London)POSTER
University College London (UCL) has provided seed funding to UCL’s 3DIMPact group for the development of a prototype website which will support the development of portable 3D metrology and related technologies. For the first time this will provide a consolidated, structured resource offering knowledge transfer in these fields.
The website will provide three key elements to achieve this...
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Dr Andrea Paoli (EGO - European Gravitational Observatory, Pisa, Italy), Prof. Carla Nardinocchi (Università di Roma "La Sapienza" - DICEA, Survey Lab, Rome, Italy), Prof. Luca Vittuari (Università di Bologna - DICAM, Bologna, Italy), Prof. Maria Marsella (Università di Roma "La Sapienza" - DICEA, Survey Lab, Rome, Italy)ORAL
The Virgo detector, currently in its 2nd generation configuration “Advanced Virgo”, is a Michelson interferometer aimed at the gravitational waves research and at opening a new window on the study of the Universe. It is made of two orthogonal arms being each 3 kilometers long and is located at the site of the European Gravitational Observatory (EGO), in the countryside near Pisa, Italy.
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This... -
Claude Sanz (CERN)ORAL
As part of its role as world-wide leader in high energy particle physics, CERN studies the feasibility of a Compact Linear Collider (CLIC). One of the biggest challenges of this electron-positron collider is the alignment required for all the components acting on the beam: thousands of components will have to be assembled and aligned at the micrometre level. PACMAN, a study on Particle...
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Luigi Pellegrino (INFN - National Institute for Nuclear Physics), Marco Paris (INFN)POSTER
In the CNAO accelerator for adrontherapy, a new experimental line and a dedicated hall have been added. The main accelerator hall and the experimental hall are separated by a 2 m thickness concrete wall. The only communication between the two hall is a 20 cm hole, normally closed by a concrete plug.
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The alignment network of the main hall has to be connected to a new network in the... -
Tse-Chuan Tseng (National Synchrotron Radiation Research Center)ORAL
An auto-tuning girder system for the Taiwan Light Source(TPS) storage ring had been designed and established to align the girders quickly also precisely with only few manpower. During the installation period, with the survey network data from the lasertrackers, this girder system demonstrated the ability and met the design requirements. Including the testing run, with only 4 times tuning, the...
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Horst Friedsam (Fermi National Laboratory)ORAL
This presentation outlines some facets of the new Muon Campus under development at Fermilab. Over the next years two experiments utilizing Muons will test the limits of the Standard Model of Particle Physics. The g-2 experiment tries to improve the accuracy of the measured magnetic momentum of Muons, while the Mu2e experiment is searching for Muon–to–Electron conversions predicted by some...
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Markus Schlösser (DESY)ORAL
Since 2009 a relational database is used to store alignment data of accelerators at DESY. This includes magnets and other components together with their fiducialization data, nominal positions of accelerator components ("the lattice") and actual measurement data of components. Nominal alignment data for field work is produced "on the fly" by the database management system. After the alignment...
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Mr Mark Emamian (Duke University)POSTER
In spring of 2015 construction of a new 240 KeV particle accelerator column and its extraction system were completed at the Laboratory for Experimental Nuclear Astrophysics (LENA) at Duke University. This was done as part of an upgrade to the existing Electron Cyclotron Resonator (ECR) Ion Source at LENA, located in the basement of Duke University Physics Department.
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In this report, survey... -
Mika Masuzawa (KEK)ORAL
SuperKEKB is an electron-positron double-ring B-factory machine, which aims to achieve a peak luminosity 40 times higher than that of KEKB by using the “nano-beam” scheme.
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A major upgrade to the Main Ring magnet system was needed in order to realize this scheme. Approximately 2600 magnets were aligned, using ~1200 reference points in the tunnel.
Commissioning of the SuperKEKB main ring... -
Jaromir M. Penicka (Argonne National Laboratory)ORAL
The Advanced Photon Source (APS) at Argonne National Laboratory is a 7GeV third generation light source providing X-ray beams for research to scientific community since 1995. In order to remain the world-leading synchrotron radiation facility in the western hemisphere, delivering X-ray beams of high-brightness and high-energy is critical. In 2013, the Department of Energy (DOE) identified the...
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Chao Zhang (JASRI/SPring-8)ORAL
The magnets of the SPring-8 storage ring have critical alignment tolerances. And, in the phase of magnetic field measurement, the positions of the fiducial points on magnets usually need to be precisely calibrated relative to magnetic center. We have been used the laser CCD-camera system for the calibration. Recently, in renewing the magnetic field measurement device, an eigenfrequency wire...
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Alain Lestrade (Synchrotron SOLEIL)ORAL
Hydrostatic Levelling system and beam diagnostics have revealed vertical slow drift between Storage Ring and the long beamline at SOLEIL. An Experimental hall air conditioning effect is even the origin of the SR slab deformation at the beamline source point. We analyse the situation with metrology tools as spatial differential processing of data, metrology loop, stability time constant and by...
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Dr Andrea Paoli (EGO - European Gravitational Observatory, Pisa, Italy), Prof. Carla Nardinocchi (Università di Roma "La Sapienza" - DICEA, Survey Lab, Rome, Italy), Prof. Luca Vittuari (Università di Bologna - DICAM, Bologna, Italy), Prof. Maria Marsella (Università di Roma "La Sapienza" - DICEA, Survey Lab, Rome, Italy)POSTER
The Virgo detector, currently in its 2nd generation configuration “Advanced Virgo”, is a Michelson interferometer aimed at the gravitational waves research and at opening a new window on the study of the Universe. It is made of two orthogonal arms being each 3 kilometers long and is located at the site of the European Gravitational Observatory (EGO), in the countryside near Pisa, Italy.
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Over... -
Nerea Ibarrola Subiza (CERN)ORAL
The work that will be presented has been driven mainly by the Future Circular Collider (FCC) study, a proposed next-generation particle collider with a circumference of 100 km and the aim of reaching collision energies of 100 TeV.
The new machine would be located in Swiss and French territories, and it would cover more than 10 times the area of the existing LHC facilities. For this reason,...
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Dr Hiroaki Kimura (JASRI/RIKEN)ORAL
In the case of large accelerator facilities, as SPring-8, of which circumference is about 1.5 km, a long term and seasonal stability of a floor in the accelerator tunnel is one of the important factors. The SPring-8 storage ring is located on bedrock area. So, a re-alignment of the storage ring, corresponding floor deformation, has never been performed since starting operation in...
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Davide Bianculli (LBNL)POSTER
Terrestrial Laser Scanners can collect a million points per second and it is a technology widely used in fields such as: topography, forensics, building, mining, as-built surveying, architecture, archaeology, monitoring, civil engineering and urban modeling. In this paper a novel application for particle accelerators is presented. The Leica ScanStation P20 has been used to collect point cloud...
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Stephen Kyle (University College London)ORAL
As part of the recently completed LUMINAR project, lead by the UK’s National Physical Laboratory (NPL), the 3DIMPact group at University College London (UCL) was given the task of evaluating and correcting the effects of refraction on photogrammetric metrology applications.
Refraction causes light rays to bend. This results in pointing errors which potentially can be corrected. Simulations...
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Mr Tse-Chuan Tseng (National Synchrotron Radiation Research Center)POSTER
The Taiwan Light Source(TPS) storage ring has a circumference of 518.4m. The devices are aligned alonge the storage ring with the relative accuracy of ±0.2mm. The Insertion Device(ID) needs higher relative accuracy of ±0.05mm to adjacent magnets in the local area. In order to evaluate the reliability performance of the Laser Tracker we test a series of the stability experiments. The first was...
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Luigi Pellegrino (INFN - National Institute for Nuclear Physics), Mario Del Franco (INFN)POSTER
In the SPARC accelerator the electron beam and the laser beam crosses at an interaction point of really small size. So both the beams has to be precisely and mutually aligned.
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As for the laser, scientists use to make manual alignment by means of mirrors and irises, using a low power pointing laser. This is definetely unpractical in the accelerator environment, where the access is forbidden... -
ORAL
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Dr Kenji Fukami (JASRI/RIKEN)ORAL
SPring-8 major upgrade, SPring-8-II, is being designed. The new storage ring requires alignment errors of 25 micro-meters (one standard deviation) or less for multi-pole magnets on a straight line between adjacent two bending magnets. Using a test bench consisted of five multi-pole magnets with typical field gradients, we have demonstrated an alignment of these magnets by introducing a...
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Antje Behrens (CERN)ORAL
Offset Measurements with respect to stretched wires are traditionally used for accelerator alignments at CERN i.e. for the SPS and the LHC, the position of the wire being measured either by an optical sensor or a capacitive sensor. In recent years the resolution of digital cameras increased so that wires of few tenth of millimetres get visible in images at limited distances of 1-2 m. A method...
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Jean-Frederic Fuchs (CERN)ORAL
LINAC4 (L4) is an H- linear accelerator that will deliver, for the High Luminosity LHC (HL-LHC) project requirements, a beam of protons at 160 MeV energy to the PS complex and then to the LHC. Its connection to the PS booster will take place during the Long Shutdown 2 (LS2) in 2019-2020 or earlier if any major failure of the LINAC2.
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The Linac4 project requires the precise alignment with a... -
Edi Meier (Edi Meier + Partner AG, 8406 Winterthur, CH), Michael Boege (Paul Scherrer Institut)ORAL
Only in recent years of SLS operation the potential of the HLS system with 192 Levelsensors has been fully exploited. A vertical realignment campaign as part of the quest to realize a very small vertical emittance of 1 pm.rad led to an increased interest in the HLS system in 2011. Electron beam-based measurements, alignment survey data and HLS data were compared and found to be consistent over...
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Helene Mainaud Durand (CERN)POSTER
We propose a new solution to fiducialise the 3 major components of the CLIC collider: quadrupoles, BPM and accelerating structures. This solution is based on the use of a Copper/Beryllium wire to materialize the reference axes of the components (respectively their magnetic axis, electromagnetic axis and electric zero axis) and to determine their position in the common support assembly...
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Solomon William Kamugasa (CERN)ORAL
We present a strategy for fiducialisation of CLIC’s Main Beam Quadrupole (MBQ) using Frequency Scanning Interferometry (FSI). We are developing a device to complement a commercial FSI system to enable multilateration for coordinate determination of fiducials. Using spherical high index glass targets with a wide acceptance angle, we optimise the geometry of the measurement stations with respect...
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Mark Jones (CERN)POSTER
The Future Circular Collider (FCC) Study, hosted by CERN, is an international collaboration of more than 70 institutes from all over the world. The FCC is a proposed next-generation circular collider with a circumference of 100 km and its goal is to push the energy and intensity frontiers of particle colliders in the search for new physics. This FCC accelerator complex would be the next large...
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Anne Valerie Naegely (CERN)POSTER
The Survey database and its interface called Geode were created in 1985. From the beginning, Geode was developed by the Survey team with an Oracle development tool, Oracle Forms.
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Over the years, both Geode and Oracle Forms have evolved together. However, this changed after migrating to Oracle Forms 10g, when we were actively encouraged to change to another development tool. Although not ideal... -
Virgil Bocean (Fermi National Accelerator Laboratory)ORAL
Proton Improvement Plan-II (PIP-II) is Fermilab’s plan for upgrading the accelerator complex with the goal of providing proton beam power of 1.2 MW on target at the start of operations of the Long Baseline Neutrino Facility (LBNF). It will also create a platform for long term development to multi MW capabilities to support a broader Fermilab research program.
This paper summarizes the...
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Babatunde Oshinowo (Fermilab)ORAL
The Antonella experiment is a measurement of the ionization efficiency of nuclear recoils in silicon at low energies [1]. It is a neutron elastic scattering experiment motivated by the search of dark matter particles. In this experiment, a proton beam hits a lithium target and neutrons are produced. The neutron shower passes through a collimator that produces a neutron beam. The beam...
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Guillaume KautzmannPOSTER
The new superconducting HIE-ISOLDE Linac replaced most of pre-existing REX ISOLDE facility at CERN. This upgrade involves the design, construction, installation and commissioning of 4 high-β cryomodules. Each high-β -cryomodule houses five superconducting cavities and one superconducting solenoid. Beam-physics simulations show that the optimum linac working conditions are obtained when the...
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Frédéric Boudin (CNRS)ORAL
With the high luminosity upgrade of the Large Hadron Collider, some zones in the Long Straight Section will expect annual radiation doses of 100 kGy. Hydrostatic levelling systems will be deployed for vertical and tilt monitoring. To resist to this high radiation doses, the electronics have to be placed up to 200 m apart from the sensors. A candidate for this task is a hydrostatic levelling...
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Patrick Bestmann (CERN)ORAL
The LHC Collimator Survey Train has already shown that automated survey measurements in the LHC are technically feasible. Nevertheless many constraints apply when making automated measurements in an accelerator environment. The research of adapted measurements techniques and strategies is an essential part in the development process of a new generation survey train.
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From the automation point... -
Francesco Scantamburlo (IFMIF/EVEDA)ORAL
IFMIF (International Fusion Material Irradiation Facility) will be a Li(d,xn) neutron source providing equivalent neutron spectrum of DT fusion reactions and comparable neutron flux of future commercial reactors. Such a facility is an essential step in world fusion roadmaps to qualify suitable structural materials capable to hold the unrivalled neutron irradiation inside the nuclear vessel of...
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Mr jiandong yuan (imp,cas)ORAL
Because of its Invisibility and ultra-low temperature characteristics(4k)，Cryomodule is the emphasis and difficulty of superconducting linac accelerator．This paper presents the alignment and monitoring of cryomodule．The author introduced，calculated and measured the vacuum and cry-deformation and displacement．As the heat conduction and expansion coefficient are both smaller，fiber glass G11 was...
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Mathieu Duquenne (Conservatoire National des Arts et Metiers - CNAM (FR))POSTER
Standard 3D measurements showed that it is difficult to align accurately the components of a particle accelerator in a narrow and straight tunnel due to the configuration of the network. When one makes use of a total station or a laser tracker for example, the radial alignment of the components diverges quickly if conventional alignment methods are used.
We propose to add measurements w.r.t...
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Mateusz Sosin (CERN)POSTER
The implementation study of the CLIC (Compact LInear Collider) is under way at CERN with a focus on the challenging issues. The pre-alignment precision and accuracy requirements are part of these technical challenges: the transverse position tolerances of the linac components are typically 14 micrometers over sliding windows of 200m. To validate the proposed methods and strategies, the Large...
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Tony Millington (STFC Rutherford Appleton Laboratory)ORAL
The EVB2 Magnet is a large vertical bending magnet located in the extraction line of the ISIS synchrotron.
The magnet is over 25 years old and increasingly unreliable.
Therefore a project was initiated to replace the EVB2 magnet; ISIS Survey Section was tasked with pre-aligning this replacement.
The existing magnet was aligned during the construction of the synchrotron, using...
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Mr Weihu Zhou (Academy of Opto-electronics, Chinese Academy of Sciences)ORAL
Laser tracking measurement system is widely used in large-scale and high-precision measurement in the fields of particle accelerator positioning, automobile assembly, ship-building and other manufacturing. It obtain 3D coordinates of measured object by measuring the distance from the object to the origin of machine coordinate system as well as the horizontal and vertical angles of object....
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Takashi Kawamoto (KEK)POSTER
SuperKEKB is a next-generation B-factory machine, which aims to achieve a peak luminosity 40 times higher than that of KEKB. It was built utilizing the pre-existing KEKB tunnel. The SuperKEKB construction started in 2010, and beam circulation in the main rings was achieved in February 2016. The floor level change along the 3 km main ring tunnel has been surveyed using DNA03 and N3...
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Mark Jones (CERN)POSTER
A new version of LGC (Logiciel Général de Compensation) has been developed over the last few years. A completely different functional model and an improved stochastic model have been implemented, and the software has effectively been rewritten.
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New observation types have been developed to respond to new requirements such as: unlevelled stations making polar measurements; more flexibility... -
Dr Francis KLUMB (CERN)POSTER
The MATHIS Software (Monitoring and Alignment Tracking for HIE-Isolde Software) aims at providing 3D positions of physical components of the HIE-Isolde superconducting modules, accurately and permanently measured by well-designed networks of BCAM devices (Brandeis Camera Angle Monitoring). Although it is originally intended for the HIE-Isolde project, its architecture and its use cases have...
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Mr Vasileios Velonas (GSI Helmholtz Centre for Heavy Ion Research, Darmstadt / Germany)ORAL
Direct measurements through glass windows with a Laser Tracker onto reflectors installed within a cryostat are not readily possible. Nevertheless these kind of measurements were investigated to accomplish the given requirements.
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The high precise monitoring requirements regarding deformations of the cold mass along with movements vs. cryostat of superconducting components in 3D were initially... -
Bengt Sommarin (Max IV Laboratory, Lund University)ORAL
In this presentation we address the problem of precisely aligning 140 two-ton integrated magnet-packets at MAX IV Laboratory. We present the methods and techniques we have used to align these packets with a 6-DOF kinematic arrangement in order to increase precision and to get rid of the stresses induced by the fabrication imperfections and the thermal expansion. The 6-DOF aligning mechanisms...
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Mr Torsten Miertsch (GSI Helmholtz Centre for Heavy Ion Research, Darmstadt / Germany)ORAL
During a network measurement campaign 2015 the Leica laser tracker AT402 was considered and applied as a centred instrument. Therefore a methodology was developed to use it in such a way.
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One aim was to analyse the precision of the centring of this instrument. Another task was the analysis how this method of reciprocal observations influenced the evaluation and especially the adjustment of... -
hongyan zhu (Institute of High Energy Physics)ORAL
IHEP are taking effort to design the ADS (Accelerator Driven Sub-critical System) injector-I. In order to gain enough experience, a test cryomodule is designed to do all the relevant system joint test. The working temperature is 4K, because the cold mass contraction, it is a great challenge to preserve the alignment precision after such a big range temperature drop. So wire position...
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Mrs Kerstin Knappmeier (GSI Helmholtz Centre for Heavy Ion Research, Darmstadt / Germany)POSTER
We did some investigations for optimizing our measurement processes. Main points are time saving, error avoidance and quality assurance. The poster shows very different spots of finished and current projects e.g. simultaneously measurements with two laser trackers, using barcodes for point ID encoding, an approach using a Leica AT402 in geodetic network measurements as a centered measurement...
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Dr Tatsuya Kume (KEK)POSTER
The muon g-2/EDM experiment at J-PARC aims to measure muon's anomalous magnetic moment, g-2 with an precision of 0.1 ppm; and to search for electric dipole moment, EDM with a sensitivity of 10−21 e·cm.
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In the experiment, tracks of decay positrons in a storage ring with a 3 T of uniform magnetic field are to be measured by a positron tracking detector. It consists of 48 rectangular platy parts... -
Georg Gassner (SLAC National Accelerator Laboratory)ORAL
Up to now the linear accelerator (Linac) alignment at SLAC was based on fiducials on the girders of the Linac. These were directly tied to the Linac Laser Alignment System which had a target at every subsector (270 targets for the 3048m length). For the new LCLS II a superconducting Linac will be installed in the first third of the accelerator housing and the Linac light pipe will be removed...
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Dr Tsuyoshi Suwada (KEK)ORAL
A new remote-controllable sensing system in a laser-based alignment system is in progress to measure slow tunnel floor displacements due to dynamic ground motion in real time at the KEKB injector linac. The 600-m-long linac comprises two (125 m and 476 m) straight sections, by which directly inject electron and positron beams into the Super KEKB rings. Two independent laser-based alignment...
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Vasileios Vlachakis (CERN)ORAL
In the frame of the Particle Accelerator Components’ Metrology and Alignment to the Nanometre scale (PACMAN) project, we develop the micro-triangulation method for the magnet fiducialization. The wire detection algorithm and the wire reconstruction algorithm are the most important parts of this study. High accuracy robotic theodolites observe the stretched wire, used for the determination of...
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yoshinori enomoto (KEK)POSTER
Improvement of alignment system of injector linac is a one of major issue in the upgrade plan for SuperKEKB project, in which very low emittance high charge injection beam is required. To suppress the emittance growth during acceleration and transportation, it is naively required to align all the components within 0.1 mm from the ideal position locally (20-30m range) and 0.3 mm globally (500...
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Mika Masuzawa (KEK)POSTER
SuperKEKB is an electron-positron collider with the design peak luminosity of 8×10^35cm^-2s^-1. In order to achieve this high luminosity, it is important to make the beam size small at the interaction point, especially in the vertical direction. Skew sextupole magnets were found to be effective in order to make the small beam sizes during KEKB operation. At SuperKEKB, a novel idea of tilting...
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Mr Michael Gaydosh (SLAC National Accelerator Laboratory)POSTER
This poster presents the survey and alignment activities at the SLAC National Accelerator Laboratory since 2014. The major projects during the last two years have been a revised coordinate system for the SPEAR3 ring, changing the monumentation in the SLAC Linac from a girder based system to a monument based system and the reconfiguration of the Linac Laser Alignment System in preparation for...
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Johannes Prenting (DESY)ORAL
The Straight Line Reference Surveyor is getting installed and comissioned.
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Dominique Missiaen (CERN)ORAL
The two-years Long Shut-Down 1 (LS1), triggered by the repair of the splices in the interconnections of the Large Hadron Collider (LHC) cryo-magnets, gave the opportunity to the survey and alignment team to smooth the position of the 27km of the LHC in order to guaranty its best performance for the RUN2 expected between 2015 and 2018. For the first time after the starting of the LHC, the roll...
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Mr Ta'er Abu-Haniyi (Mechanical Engineer)POSTER
The synchrotron Light Source for Experimental Science and Applications in the Middle East (SESAME) is now in its final stage. This paper also presents the alignment strategy for the storage ring of SESAME.
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Mr Alexis LEFEVRE (GANIL (CEA-CNRS))POSTER
The over 30 years old GANIL laboratory (heavy ions national accelerator) is still delivering beams that interest the nuclear physicist community. That is why AGATA (Advanced GAmma Tracking Array, a European collaboration of 12 countries) settled at GANIL for a 4 years campaign. This ¼ π gamma-ray detector requested a quite strong effort in term of 3D positioning metrology and in term of...
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Wolf Benecke (DESY)POSTER
Status Report on the alignment efforts @ DESY
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Rodrigo Junqueira Leao (LNLS)POSTER
The new Brazilian synchrotron light source is currently in construction, with components installation planned to 2017-2018 and comissioning intended to early 2018. The alignment requirement is of 0.080 mm for girder translations in the beam traverse directions and 0.3 mrad for rotations. The girder-to-girder alignment will be made using laser trackers, both for network survey and precision...
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William Jansma (Argonne National Laboratory)ORAL
The Advanced Photon Source linear accelerator system utilizes 3-meter long SLAC-type 2856 MHz accelerating structures. Surveys of the APS LINAC indicated distortion in the straightness of the accelerating structures over time, with 7 mm of sag detected in the worst case. A long-term project to straighten the accelerating structures, swapping them out one-by-one and straightening those removed,...
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Xiaoye He (USTC)POSTER
The multi-system displacement monitoring system is designed and established to achieve the goals of position monitoring and benchmarks in high accuracy, by which the monitoring data can be reviewed in the global coordinate system and relative position displacement can be transformed to absolute position displacement. The system consists of Hydrostatic Leveling System (HLS), Wire Position...
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Huayan He (IHEP)POSTER
The equipment of CSNS RTBT interface couldn’t be aligned and fixed in short distance because of the high radiation, so all the devices should be remotely installed and disassembled. In order to meet requirements, first pre-align the devices on the upper girder, and then remotely hoisting the upper girder toward the underneath girder installed inside the interface. Therefor the positioning...
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Babatunde Oshinowo (Fermi National Accelerator Laboratory (Fermilab))POSTER
The NOvA experiment is looking to answer fundamental questions about neutrinos and the role they play in the universe. NOvA currently uses two detectors, the near detector located underground at Fermilab and the far detector located 810 km from Fermilab on the US-Canada border in Ash River, Minnesota. The 15 kTon far detector and the 222 ton near detector are composed of several cells of...
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Philippe Dewitte (CERN)POSTER
Abstract
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Besides the main survey activities, which are presented in dedicated talks or poster, some projects are also progressing at CERN.
ELENA, a small compact ring for cooling and further deceleration of 5.3 MeV antiprotons delivered by the CERN Antiproton Decelerator, is being installed and aligned, for commissioning later this year.
AWAKE, a project to verify the approach of using... -
Ming Ke (Brookhaven National Laboratory)ORAL
Preferably the magnetic center of a magnet is the one to be referred during alignment. This requires cooperation between magnetic measurement and survey group so that the difference between magnetic and mechanical center is taken into account. By establishing local frame of magnetic measurement equipment initially and then aligning magnet or insertion device precisely relative to it, the...
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Fabien Rey (ESS ERIC)ORAL
In 2014, civil engineering works started for the construction of the European Spallation Source in Lund, south of Sweden, aiming to be the world’s leading neutron source for the study of materials. This spallation source will include a 600 m long linear accelerator delivering a 2GeV proton beam to a rotating tungsten target wheel. A large suite of neutron instruments will then be installed to...
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Mr jiandong yuan (imp,cas)POSTER
Chinese Accelerator Driven Sub-critical System (CIADS) is capable of transmuting radioactive nuclear wastes and meanwhile producing energy in a clean and safe way，aiming to produce a maximum design current of 15 mA at the 1.5 GeV energy with an operating frequency of 162.5 MHz. High Intensity heavy ion Accelerator Facility (HIAF) based on the experience and technological developments already...
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Chenghao Yu (Brookhaven National Laboratory)ORAL
Smoothing technique based on best-fit transformation is further developed during the running of NSLS-II, which is the only way to avoid the conflict between the requirement of good alignment quality and an minimum interruption of the running of beam lines.
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Local deviations are generated as a first step for each interested components to avoid the approximation error caused by longitudinal... -
Jean-Christophe Gayde (CERN)ORAL
ATLAS is one of two general-purpose detectors at CERN’s Large Hadron Collider (LHC). It is 46 m long, 25 m wide and 25 m in height and has a total mass of 7000 tons. During the Shutdown periods of LHC machine, intensive maintenance and/or upgrade programs are performed in the experiment. Such activities require that various large size detectors of up to 900 tons are moved from their “Run...
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Mr Zhenqiang HE (Institute of High Energy Physics,Chinese Academy of Sciences)ORAL
This report presents the status alignment of DTL(drift tube linac) at CSNS（China Spallation Neutron Source）.The DTL for CSNS consists of 12 tanks. A unit tank was made up of 3 tanks. The fiducialization of cavity and drift tube of the DTL had already been accomplished.The total of 153 drift tubes had been installed and aligned precisely in the DTL tank. The fisrt and second unit tank had...
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Pascal Sainvitu (CERN), Philippe Dewitte (CERN)ORAL
TSUNAMI, The Survey Unified Notepad for Alignment and Measurement Interventions is a new software designed to replace two existing software, mainly dedicated to data acquisition and beam component alignment using geodetic instruments at CERN. The use of different programs has been justified historically by the different needs, equipment and types of user. The two main ones have been written...
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Iordan Petrov Doytchinov (CERN)ORAL
A new strategy for uncertainty budgeting estimation following the International Standard (GUM - Supplement 1) is proposed as alternative to current classical methods of error budgeting applied in the domain of accelerator components. This strategy applies stochastic modelling on the uncertainty contributing factors for providing probability density function as quantification of global...
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Vivien Rude (Ecole Superieure des Geometres et Topographes (FR))ORAL
The High Luminosity LHC (HL-LHC) project aims at upgrading the long straight sections of the LHC on each side of the two main LHC experiments, ATLAS and CMS. One of the innovative key technology is the superconducting cavities for beam rotation. These “crab cavities” are working in vacuum and cryogenic environment under radiation conditions. An alignment of the inner tank of the crab cavities...
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