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Accelerating Section for Linac4

#3888


Development, Manufacture and Experimental Investigation of a Unique Pilot CCDTL Accelerating Section in the Energy Range of 50-100 MeV for the New Accelerator Linac4

Tech Area / Field

  • PHY-PFA/Particles, Fields and Accelerator Physics/Physics

Status
8 Project completed

Registration date
11.07.2008

Completion date
22.11.2013

Senior Project Manager
Kirichenko V V

Leading Institute
Budker Institute of Nuclear Physics, Russia, Novosibirsk reg., Akademgorodok

Supporting institutes

  • VNIITF, Russia, Chelyabinsk reg., Snezhinsk

Collaborators

  • CERN, Switzerland, Geneva

Project summary

The increasing need of experimental physics in intense fluxes of secondary particles (muons) can be satisfied by using high-current beams of proton accelerators. A superconducting proton linear accelerator (SPL) ensuring average beam power of about 4 MW at the energy of 5 GeV is being considered at CERN as a potential proton driver for a neutrino factory and EURISOL facility. The SPL will also be a part of the luminosity upgrade of the LHC. The SPL is composed of a source of H- ions and accelerating sections with different type of structures – RFQ, Alvarez DTL, CCDTL, PIMS and finally sections of superconducting multi-cell cavities.

To achieve the design parameters in the SPL front end, so called Linac4, a section of normal-conducting CCDTL structures shall ensure efficient acceleration of proton beams with 40 mA current from 50 MeV to 100 MeV with low losses of particles, effective cooling and stable long-term operation. The beam shall be coherent with the subsequent PIMS section. The development and manufacturing of such a pilot CCDTL accelerating section for Linac4 will be based on technologies developed by VNIITF and BINP within the framework of the ISTC Project 2875.

During the fulfillment of the project the following major tasks will be covered:

  • General CCDTL structure design development.
  • Detailed design and preparation of execution drawings.
  • Manufacturing of parts and units of 7 CCDTL modules and auxiliaries.
  • Assembling, tuning and testing of 7 CCDTL modules gradually at VNIITF, BINP and CERN.

The results of the project will be the following:
  • Set of technical documentation for Linac4 CCDTL section in the energy range of 50-100 MeV
  • Pilot CCDTL accelerating section for Linac4

The development of the design and manufacturing of CCDTL section are vital for the upgrade of LHC injector complex and, consequently, for an increase towards the ultimate LHC luminosity. At the moment, the existing Linac2 injector allows to reach the design luminosity of 1.0 x 1034 cm-2s-1. Any further luminosity increase to the LHC ultimate value of 2.3 x 1034 cm-2s-1 is only possible with a new injector complex. Besides, SPL opens possibilities for future developments of the CERN accelerator complex towards new unique experiments with neutrino and radioactive beams.

The results of the project might also be interesting to the other scientific laboratories, having the intention to deploy similar proton accelerators.

The competence of the participants of this project is based on the extensive experience in the activities on similar subjects and is illustrated, for example, by successful fulfillment of the ISTC Project 2875.

BINP SB RAS is one of the recognized world centers on high energy physics research. The Institute gained an extensive experience in the development, design, manufacturing and operation of charged particles accelerators of different types. This ensures that the goals of the project will be successfully achieved by the Institute in collaboration with RFNC-VNIITF. BINP SB RAS already has a positive experience of working with ISTC.

RFNC-VNIITF has a long-term experience in the development of unique equipment, simulation of various thermal and electromagnetic field problems. RFNC-VNIITF has advanced manufacturing facilities. RFNC-VNIITF already has a positive experience of working with ISTC.

Participation in this project will give scientists from BINP SB RAS and RFNC-VNIITF an opportunity to contribute to the solution of international scientific and technical problems in the field of high power proton accelerators, to be in contact with international experts in the field and to exchange information with European colleagues. Weapon scientists and engineers of RFNC-VNIITF will get opportunities to redirect their talents to peaceful activities.

CERN will participate in the project in the following forms:

  • The participant institutes and CERN will be continuously exchanging technical information on the project during its execution. Initial data for the development of CCDTL structure will be prepared jointly with CERN. CERN will be provided with design drawings of the main assembly units for approval. Technical reports submitted by project participants to the ISTC will be copied to CERN as well.
  • Work progress and results obtained will be discussed at joint meetings.
  • CERN will provide certain materials and components for manufacturing of CCDTL structures as in-kind contribution to the project, in particular, OFE copper for the drift tubes, stems and tuners.
  • Tests of the CCDTL structures will be carried out on the CERN test equipment with participation of Russian scientists. Final evaluation of the project results will be based on these tests.
  • CERN will participate in technical monitoring of the project activities at the participant institutes.


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