accelerating-news-arc.web.cern.ch - HiLumi

Third HiLumi Industry Day in the UK

Panagiotis Charitos — Mon, 03 Jul 2017 14:38:50 +0000

Third HiLumi Industry Day in the UK
by Isabel Bejar Alonso (CERN) and Panos Charitos (CERN)

Lucio Rossi, HL-LHC Project Coordinator, addresses participants at the HiLumi Industry Day (Image: CERN)

The cost of the upgrade, which will be realised within the regular CERN Budget, is estimated to close to 950 MCHF. The study phase of the upgrade started in 2010 and the commissioning phase will finish in 2026. The upgrade phase is crucial not only to be able to exploit fully the physics potential of the LHC, but also to continue to enable operation of the collider beyond 2025.

More than 1.2 km of the present LHC will be replaced, bringing with it new technical infrastructures - a challenge that can only be accomplished with the strong involvement of European industry. Since 2012, HiLumi, the HL-LHC upgrade project, has organized events to connect CERN with potential industrial partners able to handle the specific technical challenges of HL-LHC.

The third edition of the HiLumi Industry Day took place in Warrington, UK (close to Daresbury Laboratory) in May 2017. The two-day event jointly organised by CERN and STFC gathered some 200 participants from 17 European countries. Key engineers and physicists from CERN and STFC presented the technical challenges of the HL-LHC project to the numerous company delegates attending this event.

The face-to-face meetings arranged with the CERN engineers were also a nice opportunity for these companies to learn more about the key components of the HL-LHC upgrade and the upcoming calls for tender. The business to business meetings enhanced the creation of a community of industries wishing to work for large scientific infrastructures. In total, more than 1,000 face to face meetings were organized. The event finished with a visit to the STFC installations at Daresbury.

Industry will have a crucial role within the HL-LHC Project as the main provider of the technologies and the equipment that are required to successfully achieve the goals of this upgrade.

The HL-LHC project will collaborate with different types of industries and businesses to pursue its goals. Knowledge and technology to be developed during the HL-LHC project will make a lasting impact on society. These events allows scientific institutions to find the right industrial partners within our member states on schedule and for the best added value.

For the first time, ESS, ILL, ESO and SKA procurers also participated in the event, as it provided a great opportunity to discover new potential suppliers and to show the increasing global potential of the science market.

In 2018, HL-LHC will participate in the Big Science Business Forum 2018. In 2019 the event will be mainly focus to technical services.

More information on the event, including the technical presentations, are available on Indico event page, and more information on the HL-LHC industrial challenges can be found at the HL-LHC project website.

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issue 21

QUACO enters into Phase 2

Jennifer Toes — Mon, 03 Jul 2017 14:33:14 +0000

QUACO enters into Phase 2
by Isabel Bejar Alonso (CERN)

QUACO is a Pre Commercial Procurement (PCP) Project (Grant Agreement 689359) with key scope to procure two pilot 3.8 m quadrupole magnets with 90 mm apertures, an integrated gradient of 440 T with 120 T/m in the transverse plane and finally with an operational temperature of 1.9 K.

On 29 September last year, four companies (Antec, Elytt, Sigmaphi and Tesla) obtained a work order for Phase 1. The main milestone of this phase included:

Conceptual Design Report of the magnet covering the results obtained in Phase 1;
Preliminary 2D and 3D CAD model of the magnet;
Conceptual Design Report of the Tooling including Coil fabrication tooling conceptual design and Magnet assembly tooling conceptual design;
Development and Manufacturing plan including detailed plan for phase 2 engineering design.

Evaluators from CEA, CERN, CIEMAT and NCBJ assessed the work produced and all four tenders satisfactorily completed Phase 1.

Each one of the four contractors explored a different conceptual solution demonstrating the strength of the PCP as a method to develop innovative solutions. The summary of the results can be found on the QUACO project website.

On 12 May 2017 the successful tenderers were invited to submit their offers for Phase 2. After the evaluation of the technical and financial offers three tenderers were awarded on 30th June with a contract to execute Phase 2 of the PCP (Antec, Elytt and Sigmaphi). The main milestone of this phase included

Detailed Magnetic and Mechanic design optimisation
Sensitivity analysis toward fabrication
Detailed 2D and 3D CAD manufacturing drawings of the magnet and subcomponents including instrumentation schematics
Detailed 2D and 3D CAD drawings of the manufacturing tooling
Manufacturing and Inspection Plan (MIP)
Mock-ups

This phase is the engineering phase with the first mock-ups and with the complete technical solutions. The three companies have thirteen months ahead of them to demonstrate their capacity to build the future MQYY prototype. The PCP is a competitive procedure and only two of them will receive a work order for phase 3.

Pre-commercial procurement is a unique and novel procurement method in the field of accelerator components, and QUACO aims to demonstrate its full potential for success in this field.

This project has received funding from the European Union’s Horizon 2020 PCP programme under Grant Agreement no. 689359

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pre commercial procurement

issue 21

Triplet magnets program progressing on both sides of the Atlantic

Panagiotis Charitos — Tue, 06 Dec 2016 11:19:36 +0000

Triplet magnets program progressing on both sides of the Atlantic
by G. Ambrosio, P. Ferracin, E. Todesco (CERN)

The Nb3Sn 150 mm aperture quadrupoles MQXF, to be installed in the inner triplets around ATLAS and CMS in 2024-5, are entering a critical phase; the first two 1.5-m-long models have been manufactured and tested since the beginning of this year.

This magnet development program, carried out as a joint effort between CERN and US LARP foresees the construction and testing of five 1.5-m-long models to validate the design and fine tune the assembly features during 2014-17.

These magnets rely on the Al shell and bladder&key structure, allowing easy and fast disassembly, and a precise tuning of the coil prestress. Mechanics is a critical part in the design of these large aperture quadrupoles, featuring an 11.4 T peak field in the coils (50% larger than the peak field in the LHC dipoles operating at 6.5 TeV).

The first model, MQXFS1, was assembled in the U.S. with two CERN coils and two LARP coils, and was confirmed to fulfil performance requirements in April 2016 (see Figure 1). The performance requirements included a) reaching the ultimate current (8% higher than the nominal current of 16.4 kA), and b) reaching nominal current after a thermal cycle with at most one quench.

Figure 1: Training of MQXFS1: quenches (markers), nominal and ultime current (solid lines) and short sample limit (dotted line). (Credit: HL-LHC WP3 collaboration)

The memory after thermal cycle has outperformed expectations by exceeding ultimate current in the first quench after the thermal cycle. However, training has been slower than expected, reaching nominal current after nine quenches. After this first cycle of testing, the transverse pre-stress in the magnet was increased by 30%, to ensure a better support to the coils.

In October 2016, the second assembly was tested at FNAL, reaching 18.8 kA; which is 15% more than the nominal current, and close to 90% of the maximum theoretical performance of the magnet. Some detraining has been observed sporadically, reducing the magnet performance but keeping it always well above the nominal current.

At 4.2 K the magnets shows the ability to reach the same current, thus demonstrating the existence of a considerable margin in temperature, meaning the magnet should tolerate local heating).

The second model, MQXFS3, (MQXFS2 has been postponed to 2017) has been tested at CERN in October 2016, using a novel test station (HFM) planned to be used for the Fresca II dipole.

The magnet reached nominal current with nine quenches, as MQXFS1, but reached a current only 4% above nominal after 20 quenches. A significantly larger detraining than in MQXFS1 was observed, pushing the magnet performance well below nominal (15.0 kA).

Nonetheless, the maximal performance of 17.2 kA has been recovered after ramp rate tests. In addition, 4.2 K test, shows the same performance reached at 2.1 K and also demonstrates the existence of a considerable temperature margin.

Training of MQXFS3: quenches (markers), nominal and ultimate current (solid lines) and short sample limit (dotted line). (Credit: HL-LHC WP3 collaboration)

Work is now focussed on understanding the relationship between the quenches and the mechanical structure. As quenches are mainly located in the coil heads the longitudinal preload will be increased. Further testing after the thermal cycle is expected for the end of the year and . three additional models are foreseen in 2017.

The program will run in parallel with the development of the long coils (4.2 m in US and 7.15 m in CERN) required for the full size magnets.

“The short model program is a fundamental tool to master the design and construction of superconducting magnets, and it is even more important for a novel technology as Nb3Sn” says L. Bottura, leader of the CERN Magnet, Superconductors and Cryostat group. “If needed, we will prolong the short model program to improve our understanding and to reduce the risks in the construction of the prototypes and of the series.”

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New Collaboration Board for HL-LHC

Panagiotis Charitos — Mon, 05 Dec 2016 16:30:12 +0000

New collaboration board for HL-LHC
by Isabel Bejar Alonso (CERN) and Panos Charitos (CERN)

The HL-LHC Collaboration Board [HLCB] is the official forum for information exchange and dialogue between the HL-LHC collaborators, HL-LHC project management and CERN management (Image: CERN)

The first session of the new HL-LHC Collaboration Board took place in Paris on 14th November 2016. The HL-LHC project moves from its initial conceptual design phase into the constructive design phase, which marks the beginning of construction for some HL-LHC components.

Moving into the new phase is reflected not only by the change of the composition of the Collaboration Board, but also in the relations with the institutions working for the HL-LHC.

Lucio Rossi, HL-LHC Project Leader points to the increasing number of Member States that contribute through their universities and research centres. Finland, Poland and Sweden have joined, in addition to a strengthened relationship with the States which were already part of the design study, such as France, Italy, Spain and the United Kingdom.

“We are particularly proud of the UK contribution, where not only the number of universities is increasing, but also the domains of competence,” notes Lucio Rossi, HL-LHC Project Leader.

Contributions to HL-LHC are also not limited to Europe. Canada is represented by Triumf laboratory, which is also a new member of the Collaboration Board. The SLAC National Accelerator Laboratory, located in California, joins BNL, LBNL, Fermilab and Old Dominion University (Virginia) in the effort of US contribution. In addition, Asia is represented in the collaboration by Japan, while China may soon join the collaboration.

A new general framework contract based on a multi-party memorandum of understanding (MoU) that allows a more flexible exchange of personnel between partners has been agreed upon. Additional contributions can be added by the laboratories via simple addenda.

Collaboration partners include laboratories and institutes who have either signed directly a HL-LHC collaboration agreement or are part of an overreaching general collaboration agreement, will provide either significant in-kind contributions or studies and personnel for the HL-LHC project.

Institutes that have signed the MoU but do not provide an explicit in-kind contribution to HL-LHC are to be considered observers.

The present HL-LHC Collaboration Board has 21 members and 10 observers and is chaired for the next two years by Robert Appleby from the University of Manchester in the UK.

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issue 19

A year of successes for HL-LHC

Jennifer Toes — Mon, 05 Dec 2016 14:49:13 +0000

A year of successes for HL-LHC
by Isabel Bejar Alonso (CERN)

180 HL-LHC project members participated to the 6th Annual Meeting in Paris from the 14th-16th November, co-organized with CEA at the “Espace Saint Martin” premises (Image: CERN, HL-LHC collaboration)

2016 has been a very busy year for the Hi-Luminosity team. In March, the HL-LHC was declared as an ESFRI landmark, and in June the project received the formal approval of the CERN Council. Finally, after an international review, the 2^nd HL-LHC Cost and Schedule review took place in October; where a group of international experts scrutinized the status of the project. The reviewers gave very positive feedback and pointed out risks of which the management team were already aware.

On the technical side, it is difficult to determine the three main technical milestones of the project due to the sheer volume of achievements.

For Lucio Rossi, HL-LHC Project Leader, 2016 was the year of the consolidation of the civil engineering and technical infrastructure design. In particular, in 2016 we optimized the so called “double decker” solution, which was selected in summer 2015 as best solution for hosting the technical services that will feed the new insertion regions in a gallery a few meters above the main LHC tunnel.

This definitive design pushed to a re-baselining exercise which aimed to resolve the excess in civil engineering costs that emerged in spring 2016. The results of this exercise were presented and validated at the Cost and Schedule review after being approved by the CERN Executive Committee in August. The results have also been integrated into the latest version of the Technical Design Report (TDR), that will be published soon.

In addition, Lucio Rossi pointed that the HL-LHC technical teams have achieved many things, such as the production of full cross-section models of the HL-LHC’s future quadrupole magnets. The first short model (MQXFS1) of the future quadrupoles was produced by a collaboration between US-LARP and CERN. The magnets (MQXFS1) achieved the ultimate gradient and retained it after a thermal cycle showing an optimal memory. Had the magnet been a prototype rather than a model, would have been qualified for installation.

Furthermore, the SPS testing of the crab cavity cryo-assemblies has also made significant progress. After being considered in a critical state and with challenging planning just one year ago, the schedule is back on track and has been adhered to, without any further delay.

Beyond SPS testing, the industrialization plan for the HL-LHC production was validated by the external reviewers and considered extremely solid.

HL-LHC has had a successful year both in terms of project management and technical milestones. Project members gathered for the 6^th HL-LHC Collaboration meeting held in Paris in November to discuss the past year and look forward to the next steps.

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Development and Testing of Crab Cavities for High Intensity Colliders

Sabrina El Yacoubi — Thu, 27 Nov 2014 14:21:39 +0000

Development and Testing of Crab Cavities for High Intensity Colliders
by Peter McIntosh (STFC)

Fig 1: CLIC ‘Undamped’ Crab Cavity Fabricated.Image credit: Shakespeare Engineering Ltd (UK)

Fig 2: LHC 4-rod Crab Cavity Fabricated. Image credit: Niowave Inc (USA)

The development of innovative crab cavity solutions for high intensity particle colliders is part of both the FP7 EUCARD and HiLumi framework programmes.

The activity has been led by Lancaster University and STFC in the UK, in direct collaboration with CERN. For LHC, a compact Superconducting RF (SRF) solution at 400 MHz, capable of fitting into the confined space available at the LHC interaction regions is proposed. A compact TEM type deflecting structure has been manufactured at Niowave from bulk Niobium, which has been tested in SM18 at CERN, reaching a surface magnetic field of 33 mT (limited by a serious LHe leak). This represents the world's first high field test of a compact SRF deflector and the cavity is currently undergoing additional BCP processing in order to reach the LHC design gradient of 6 MV/m (Bpk~70 mT).

For CLIC, a high gradient 12 GHz, normal-conducting travelling-wave structure, with a high group-velocity to minimise the effects of beam loading, has been developed. Two ‘undamped’ structures have been fabricated, one in the UK by Shakespeare Engineering Ltd and the other at CERN. Systematic high gradient tests are planned at SLAC and CERN, to study breakdown differences between deflecting and accelerating structures. A third ‘damped’ cavity is currently being developed to allow verification of the operational performance. A high phase stability control system, which will keep the phase from a klystron stable over long distances, is also in development to meet the stringent CLIC phase stability tolerances.

Recent progress of the HiLumi project

Margarita Synanidi — Wed, 26 Nov 2014 13:39:23 +0000

Recent progress of the HiLumi project
by Lucio Rossi (CERN), Agnes Szeberenyi (CERN)

Group photo of the annual meeting participants. Image credit: Claudio Federici, INFN-LNF

A year has already passed since the launch of the High Luminosity LHC Design Study, which is the first step of the larger High Luminosity LHC (HL-LHC) project.

The 2nd Joint HiLumi LHC-LARP Annual Meeting took place on 14-16 November and was hosted by INFN-LNF. The event registered 130 participants, bringing together not only European and US LARP experts but also Japanese and Russian scientists.

The event reviewed the progress of design and R&D of the FP7 HiLumi Work Packages, and of the other HL-LHC WPs as well, and the progress towards a final lay-out of the accelerator upgrade. A dedicated session was organized for young scientists honoured the LARP Toohig fellowship. The plenary talks featured LARP, U.S. DoE and Japanese positions on HL-LHC as well.

The next joint Annual Meeting is planned to take place at Daresbury Laboratory of the Cockcroft Institute in November 2013, while in May 2013 the collaboration will meet at the joint LARP-HiLumi LHC annual meeting in the USA.

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Superconducting Technologies for the Next Generation of Accelerators

Margarita Synanidi — Wed, 26 Nov 2014 13:03:52 +0000

Superconducting Technologies for the Next Generation of Accelerators
by Marina Giampietro (CERN), Lucio Rossi (CERN), Agnes Szeberenyi (CERN)

Fig1: High Luminosity LHC will rely on cutting-edge 13 Tesla superconducting magnets, very compact and ultra-precise superconducting cavities for beam rotation, and 300-metre-long high-power superconducting links with zero energy dissipation. Image credit: CERN

CERN, in collaboration with TIARA and HiLumi LHC European FP7 projects, organized the Workshop on Superconducting Technologies for Next Generation of Accelerators at the Globe of Science and Innovation on 4th and 5th December, 2012.

The 2-day event focused on key areas such as the development of high- and low-field superconducting magnets, superconducting cavities, cryostats and superconducting links.

The workshop was the one of a series of initiatives at CERN aimed at connecting research infrastructures, facing specific technical challenges, with potential commercial partners, for R&D collaborations and knowledge exchange. More than 100 specialists, about half from industry and half from research laboratories and institutes, met to exchange information on: technologies, processes, materials, facilities, work organization and training of next generation engineers and technicians. In the workshop talks form HiLumi LHC, TIARA and ESS were complemented by presentations and booth stands from companies in forefront research of superconductivity.

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