Elytt Energy

Madrid, Spain

Elytt Energy

Madrid, Spain
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Back J.,University of Warwick | Pozimski J.,Imperial College London | Savage P.,Imperial College London | Faircloth D.,Rutherford Appleton Laboratory | And 7 more authors.
IPAC 2010 - 1st International Particle Accelerator Conference | Year: 2010

The Front End Test Stand (FETS) at the Rutherford Appleton Laboratory is intended to demonstrate the early stages of acceleration (0-3 MeV) and beam chopping required for high power proton accelerators, including proton drivers for pulsed neutron spallation sources and neutrino factories. A Low Energy Beam Transport (LEBT), consisting of three solenoids and four drift sections, is used to transport the H- beam from the ion source to the FETS Radio Frequency Quadrupole. We present the status of the installation and commissioning of the LEBT, and compare particle dynamics simulations with preliminary measurements of the H- beam transport through the LEBT.


Asua E.,University of the Basque Country | Etxebarria V.,University of the Basque Country | Garcia-Arribas A.,University of the Basque Country | Feutchwanger J.,University of the Basque Country | And 2 more authors.
Sensors (Switzerland) | Year: 2014

In many micro- and nano-scale technological applications high sensitivity displacement sensors are needed, especially in ultraprecision metrology and manufacturing. In this work a new way of sensing displacement based on radio frequency resonant cavities is presented and experimentally demonstrated using a first laboratory prototype. The principle of operation of the new transducer is summarized and tested. Furthermore, an electronic interface that can be used together with the displacement transducer is designed and proved. It has been experimentally demonstrated that very high and linear sensitivity characteristic curves, in the range of some kHz/nm; are easily obtainable using this kind of transducer when it is combined with a laboratory network analyzer. In order to replace a network analyzer and provide a more affordable, self-contained, compact solution, an electronic interface has been designed, preserving as much as possible the excellent performance of the transducer, and turning it into a true standalone positioning sensor. The results obtained using the transducer together with a first prototype of the electronic interface built with cheap discrete elements show that positioning accuracies in the micrometer range are obtainable using this cost-effective solution. Better accuracies would also be attainable but using more involved and costly electronics interfaces. © 2014 by the authors; licensee MDPI, Basel, Switzerland.


Poncet L.,Fusion for Energy F4E | Bellesia B.,Fusion for Energy F4E | Oliva A.B.,Fusion for Energy F4E | Boter Rebollo E.,Fusion for Energy F4E | And 16 more authors.
Fusion Engineering and Design | Year: 2015

The ITER Toroidal Field (TF) magnet system consists of 18 "D" shaped coils. Fusion for Energy (F4E), the European Domestic Agency for ITER, is responsible for the supply of 10 out the 19 TF coils (18 installed plus one spare coil). Each TF coil, about 300 t in weight, is made of a stainless steel case containing a Winding Pack (WP).The European manufacturing of the Radial Plates (RPs) and WPs has been awarded to two different industrial partners, whose activities are strongly linked with each other. In order to manufacture a Double Pancake (DP), first, the conductor has to be bent onto a D-shaped double spiral trajectory, then heat treated and inserted in the grooves of the RP. This represents the most challenging manufacturing step: in order to fit inside the groove, the double spiral trajectory of the conductor must match almost perfectly the trajectory of the groove, over a length above 700. m. In order to achieve this, the conductor trajectory length must be controlled with an accuracy of 1. mm over a length of 350. m while the radial plate groove has to be machined with tolerances of ±0.2. mm over dimensions of more than 10. m. In order to succeed, it has been essential to develop a metrology process capable to control with high accuracy both the DP conductor and the RP groove trajectories.This paper reports on the work carried out on the development and qualification of the dimensional metrology to monitor the manufacturing of the conductor. Reference is made to the final dimensional check of the RP focusing on the groove centreline length. In addition the results obtained on the one to one scaled prototype DP are described. Finally, the strategy and foreseen improvements for the production of DPs are discussed. © 2015 Elsevier B.V.


Bustinduy I.,ESS | De Cos D.,ESS | Feuchtwanger J.,ESS | Munoz J.L.,ESS | And 10 more authors.
HB 2010 - 46th ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams | Year: 2010

The proposed multi-specimen Low Energy Transport System (LEBT) consists of a series of solenoids with tunable magnetic fields, used to match the characteristics of the beam to those imposed by the RFQ input specification. The design of the LEBT involves selecting the number of solenoids to use and their fixed positions, so that a set of fields that provides the desired matching can be found for any given conditions (different currents, input emittances, etc). In this work we present the first simulations carried out to design the Bilbao Accelerator LEBT, which were performed using several codes (TRACK, GPT, Trace2D). The best configuration is discussed and evaluated in terms of the degree of matching to the RFQ input requirements.


Bonito Oliva A.,Fusion for Energy F4E | Batista R.,Fusion for Energy F4E | Bellesia B.,Fusion for Energy F4E | Boter Robello E.,Fusion for Energy F4E | And 27 more authors.
IEEE Transactions on Applied Superconductivity | Year: 2016

The ITER magnetic system includes 18 toroidal field (TF) coils constructed using a Nb3Sn cable-in-conduit superconductor. Each TF coil comprises a winding pack (WP) composed of seven double pancake (DP) modules stacked together, impregnated, and inserted into a stainless steel coil case. Ten TF coils are being produced in Europe, under the responsibility of Fusion for Energy (F4E) (the European Domestic Agency), whereas the remaining nine TF coils are being produced in Japan. F4E has implemented a procurement strategy aimed to minimize costs and risks by subdividing the procurement into three main packages, each foreseeing first an RD and a qualification phase. One procurement package is related to the construction of 72 radial plates (RP), another to the fabrication of the ten WPs, and a third to the cold test and coil-case insertion of ten WPs. All industrial contracts have now been signed and are running. The situation as of September 2015 is as follows: 2 RP prototypes and 32 production RPs (enough for four TF coils) have been successfully (enough for four TF coils) produced and delivered to the winding pack supplier. A full-size superconducting DP prototype has been successfully fabricated and subjected to a thermal cycle at 80 K. So far, 33 DPs have been wound, 27 DPs have been heat treated, and 26 DPs have been successfully transferred into the RP grooves. The cover plate welding has been successfully completed on 18 DPs. Regarding the insertion contract, an alternative way to insert the WP inside the coil case has been devised, and the corresponding transfer tooling is being procured. The qualification for the most important manufacturing processes is underway. © 2002-2011 IEEE.


Asua E.,University of the Basque Country | Etxebarria V.,University of the Basque Country | Garcia-Arribas A.,University of the Basque Country | Feutchwanger J.,University of the Basque Country | And 2 more authors.
Proceedings of the 2013 5th IEEE International Workshop on Advances in Sensors and Interfaces, IWASI 2013 | Year: 2013

The performance and accuracy of micro- and nano-positioning systems are directly linked to the measurement device used to close the associated control loop. In this work we propose, design, and test an electronic interface for a new position and displacement transducer based on resonant cavities. This type of transducer has been proven to achieve resolutions in the nanometer range when the detection is performed using a laboratory network analyzer. The proposed electronic interface is intended to provide a more affordable and compact solution, while preserving as much as possible the excellent performance of the transducer, thus, turning it into a true standalone positioning sensor. The operation of the interface establishes a self-resonance in the cavities and detects the resonance frequency (which is directly related to the position to be measured) by analyzing the attenuation produced by a low pass filter. The results obtained in a prototype of the interface built with discrete elements show that the obtainable positioning accuracy using this cost-effective solution is about 5 micrometers. © 2013 IEEE.


Asua E.,University of the Basque Country | Etxebarria V.,University of the Basque Country | Garcia-Arribas A.,University of the Basque Country | Feutchwanger J.,University of the Basque Country | And 2 more authors.
Journal of Physics: Conference Series | Year: 2013

We propose, design, and test an electronic interface for a new standalone, affordable and compact displacement transducer based on resonant cavities. The operation of the interface establishes a self-resonance in the cavities and detects the resonance frequency (which is directly related to the position to be measured) by analyzing the attenuation produced by a low pass filter. The results obtained in a first prototype of the interface built with discrete elements show that the obtainable positioning accuracy using this cost-effective solution is about 5 micrometers. © 2013 Published under licence by IOP Publishing Ltd.


Acosta L.,University of Huelva | Acosta L.,National Institute of Nuclear Physics, Italy | Bontoiu C.,University of Huelva | Martel I.,University of Huelva | And 4 more authors.
IPAC 2014: Proceedings of the 5th International Particle Accelerator Conference | Year: 2014

Beam transport optics of the LINCE Linac experimental areas has been optimized for a few ion species using transfer matrix calculations performed in MAD-X. An alpha spectrometer based on a double bending achromat lattice has been used as dispersion suppressor. This optics design correspond to the first three planned beam lines. Further studies for the beam tracking and magnets design are being developed in order to conclude the whole design of this first LINCE phase. Copyright © 2014 CC-BY-3.0 and by the respective authors.


Poncet L.,Fusion for Energy F4E | Bellesia B.,Fusion for Energy F4E | Oliva A.B.,Fusion for Energy F4E | Boter Rebollo E.,Fusion for Energy F4E | And 16 more authors.
Fusion Engineering and Design | Year: 2015

The ITER Toroidal Field (TF) magnet system consists of 18 "D" shaped coils. Fusion for Energy (F4E), the European Domestic Agency for ITER, is responsible for the supply of 10 out the 19 TF coils (18 installed plus one spare coil). Each TF coil, about 300 t in weight, is made of a stainless steel case containing a Winding Pack (WP). The European manufacturing of the Radial Plates (RPs) and WPs has been awarded to two different industrial partners, whose activities are strongly linked with each other. In order to manufacture a Double Pancake (DP), first, the conductor has to be bent onto a D-shaped double spiral trajectory, then heat treated and inserted in the grooves of the RP. This represents the most challenging manufacturing step: in order to fit inside the groove, the double spiral trajectory of the conductor must match almost perfectly the trajectory of the groove, over a length above 700 m. In order to achieve this, the conductor trajectory length must be controlled with an accuracy of 1 mm over a length of 350 m while the radial plate groove has to be machined with tolerances of ±0.2 mm over dimensions of more than 10 m. In order to succeed, it has been essential to develop a metrology process capable to control with high accuracy both the DP conductor and the RP groove trajectories. This paper reports on the work carried out on the development and qualification of the dimensional metrology to monitor the manufacturing of the conductor. Reference is made to the final dimensional check of the RP focusing on the groove centreline length. In addition the results obtained on the one to one scaled prototype DP are described. Finally, the strategy and foreseen improvements for the production of DPs are discussed. © 2015 Elsevier B.V. All rights reserved.


News Article | March 18, 2016
Site: phys.org

One of the biggest and most complex magnets in history is being manufactured at the ASG facilities, Italy. This gigantic "D" shaped coil will be form part of the system that will confine ITER's super-hot plasma which is expected to reach 150 million ˚C. Basically, an impressive magnetic shield will entrap the hot gas and keep it away from the walls of the vessel of the world's biggest fusion machine. F4E is responsible for the supply of 10 out of the 18 TF coils that ITER will need to operate. Witnessing the first TF coil taking shape is a turning point for the project and the 600 people having contributed to this milestone from at least 26 companies. This is the result of various contracts starting in 2008 when F4E started its collaboration with several suppliers for the production of Europe's TF conductor, which reached a length of 20 km. Iberdrola, ASG and Elytt Energy, have used parts of this conductor to manufacture Europe's first TF coil. Winding, sandblasting and heat treatment have been some of the main steps taken in order to fit the conductor into stainless steel plates, known as radial plates, manufactured by CNIM and SIMIC. Piece by piece the conductor had to be lifted, wrapped, insulated and placed back in the grooves of the plates before it got covered. Then, the structure containing the conductor has been laser welded and wrapped with insulating material, before going through impregnation. To create the inner-core of the TF coil, a pack of seven of these structures had to be stacked, electrically jointed, wrapped, insulated and impregnated. Pipes through which cold liquid helium will circulate inside the magnet to help it reach a superconducting state and instruments to measure its performance have also been added. Each of these packs, known as a winding pack in the ITER jargon, is 14 m high, 9 m wide and 1 m thick. Its weight is approximately 110 tonnes which compares to that of a Boeing 747! For Alessandro Bonito-Oliva, F4E's Manager for Magnets, and his team, this has been an accomplishment of significant importance. "Thanks to our determination to meet the tight planning for magnets and the excellent collaboration between F4E and its suppliers we are heading towards Europe's first TF coil, which also happens to be a first for ITER. Seeing a magnet of such complexity taking shape suggests that we can deliver some of the most technically challenging systems of ITER. Sharing expertise and good communication between F4E, ITER International Organization and Japan's Domestic Agency for ITER have been fundamentally important for the achievement of this milestone and will continue to be as production is still ongoing. So what are the next stages for the inner-core of the first TF coil? The stacking of the first pack has been completed and the electrical insulation material is being applied. When its vacuum-pressure insulation is concluded it will be transferred to SIMIC to conduct a series of tests. Then, it will be inserted in the massive case of the coil and in the end the final casting process will be performed, during which additional epoxy resin will be injected to fill in any remaining gaps. And what about the progress of the other TF components? In March the production of radial plates for which F4E is responsible has accelerated reaching 45 out of a total of 70. Meanwhile, the manufacturing of the components of the second TF coil have been completed paving the way for its assembly.

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