| Paper | Title | Page |
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| MOPOY057 | The Linear IFMIF Prototype Accelerator (LIPAC) Design Development under the European-Japanese Collaboration | 985 |
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| The IFMIF aims to provide an accelerator-based, D-Li neutron source to produce high energy neutrons at sufficient intensity. Part of the BA agreement (Japan-EURATOM), the goal of the IFMIF/EVEDA project is to work on the engineering design of IFMIF and to validate the main technological challenges which includes a 125mA CW D+ accelerator up to 9 MeV mainly designed and manufactured in Europe. The components are in an advanced stage of manufacturing. The first components which allow the production of a 140 mA-100 keV deuteron beam have been delivered, installed and under commissioning at Rokkasho. The second phase (100 keV to 5 MeV) will end by March 2017. The third phase (short pulse) and forth phase (cw) will be the integrated commissioning of the LIPAc up to 9 MeV. The duration of the project has been recently extended up to end 2019 to allow the commissioning and operation of the whole accelerator (1MW). The aim of this paper is to give an overview of the LIPAc, currently under commissioning in Japan, to outline the engineering design and the development of the key components, as well as the expected outcomes of the engineering work, associated with the experimental program. | ||
| DOI • | reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-MOPOY057 | |
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| TUPMB019 | Detailed Characterization of MEBT Quadrupoles for the Linear IFMIF Prototype Accelerator (LIPAc) | 1151 |
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Funding: This work has been funded by the Spanish Ministry of Economy and Competitiveness under the Agreement as published in BOE, 16/01/2013, page 1988 The IFMIF-EVEDA* Linear IFMIF Prototype Accelerator (LIPac) is a 9 MeV, 125 mA CW deuteron accelerator to validate the technology to be used in the future IFMIF accelerator. The acceleration of deuterons will be done through two stages. The matching between them will be done in the Medium Energy Beam Transport line (MEBT). In this section, the transverse focusing of the beam is carried out by five quadrupole magnets with integrated steerers, grouped in one triplet and one doublet**. These magnets have been designed by CIEMAT, and manufactured by the Spanish company ANTECSA. After manufacturing, they were fully characterized at ALBA-CELLS magnetic measurements facility. In this paper we describe the characterization bench used to measure the magnets, the measurement protocol and the alignment procedure, as well as the results obtained and the iteration process followed in order to shim the magnets to fulfill with beam dynamics requirements. * A. Mosnier et al., proceedings of IPAC10, MOPEC056, p.588, Kyoto, Japan (2010) ** C. Oliver, et alt, proceedings of IPAC11, WEPO014, p. 2424, San Sebastián, Spain (2011) |
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| DOI • | reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-TUPMB019 | |
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| WEPMR045 | Engineering Issues of the Medium Energy Beam Transport Line and SRF Linac for the LIPAc | 2377 |
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| The International Fusion Materials Irradiation Facility (IFMIF) aims to provide an accelerator-based, D-Li neutron source to produce high energy neutrons at sufficient intensity and irradiation volume for DEMO materials qualification. Part of the Broader Approach (BA) agreement between Japan and EURATOM, the goal of the IFMIF/EVEDA project is to work on the engineering design of IFMIF and to validate the main technological challenges which, among a wide diversity of hardware includes the LIPAC (Linear IFMIF Prototype Accelerator), a 125 mA CW deuteron accelerator up to 9 MeV mainly designed and manufactured in Europe. The aim of this paper is to address the engineering issues of the MEBT and SRF linac related to assembly and Integration at LIPAc facility, focusing in the seismic analysis of the beamlines to ensure the robustness of the equipment and the alignment activities with the cutting edge technology performed in Europe before sending the components to Rokkasho. These activities are essential before starting the installation process of the MEBT in the first half of 2016, and to initiate the assembly and integration of the SRF Linac cryomodule in the next phase. | ||
| DOI • | reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-WEPMR045 | |
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| THPOR030 | Commissioning and First Performance Studies of a Single Vertical Beam Halo Collimation System at ATF2 | 3844 |
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| A single vertical beam halo collimation system has been installed in the ATF2 beamline to reduce the background that could limit the precision of the diagnostics located in the post-IP beamline. On this paper the commissioning and first performance studies of a single vertical beam halo collimation system are reported. Furthermore realistic efficiency studies have been done using the simulation code BDSIM and compared with the first experimental tests. | ||
| DOI • | reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOR030 | |
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| THPOY035 | Machine Protection and Safe Operation of LIPAc Linear Accelerator | 4178 |
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| A Li(d, xn) fusion relevant neutron source with a broad peak at 14 MeV is indispensable to characterize and qualify suitable structural materials for the plasma facing components in future fusion reactors. LIPAc (Linear IFMIF Prototype Accelerator), presently under its installation and commissioning phase in Rokkasho, will validate the concept of a 40 MeV deuteron accelerator with its 125 mA CW and 9 MeV deuteron beam for a total beam average power of 1.125 MW. The Machine Protection System (MPS) of LIPAc provides the essential interlock function of stopping the beam in case of excessive beam loss or other hazardous situations. However, approaching LIPAc beam commissioning Phase B (including RFQ powered by total 1.6 MW RF power) a risk analysis has been performed on all major technical systems to identify the sources of risk, apply the necessary countermeasures and enhance accelerator availability, avoiding unnecessary beam stop triggers and allowing a fast beam recovery whenever possible. The overall strategy for the machine protection at LIPAc is presented in this paper. | ||
| DOI • | reference for this paper ※ DOI:10.18429/JACoW-IPAC2016-THPOY035 | |
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