Thermal behaviour and cryogenic performance of the first CERN/INFN prototype dipole cryomagnet for the CERN LHC project

Rossi, L.; Sergo, V.; Szeless, B.; Tavian, L.; Vullierme, B.; Weelderen, R. van; Williams, L. R.

doi:10.1016/s0011-2275(05)80164-x

Cited by 4 publications

(8 citation statements)

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“…In TARLA, the maximum beam energy is 40 MeV, ρ = 0.45 m gives E c = 0.38 eV, and flux is of the order of magnitude 8; therefore, outgassing from photon-induced desorption is well below the literature rates [14]. For example, when the photon dose order is of magnitude 17, the related yield is 5 × 10 −2 for H 2 obtained for SS and its outgassing would be of the order of magnitude -20 [10,15]). Therefore, photon-induced desorption can be negligible in TARLA.…”

Section: Outgassing and Conductancementioning

confidence: 96%

“…• Vacuum chamber materials: There are 3 commonly used materials for vacuum chamber manufacturing: stainless steel (low outgassing), aluminum (low outgassing, good conductor, easy to extrude), and copper (low outgassing, good heat absorber, good conductor, easy to extrude) [7,8,9,10].…”

Section: Vacuum Apparatusmentioning

confidence: 99%

“…Various outgassing rates for different materials can be found in [10,15,16]. The other important parameter to define pressure is conductance.…”

Section: Outgassing and Conductancementioning

confidence: 99%

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Vacuum properties of TARLA

Aksakal¹,

Arikan²,

Nergiz³

2013

Turk J Phys

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The Turkish Accelerator and Radiation Laboratory at Ankara (TARLA) is a part of the Turkish Accelerator Center project, which was designed to produce an infrared free electron laser in the wavelength band of 2 − 250 µm . The beamline of TARLA consists of 4 major sections: injector, beam transport line with linacs, optical cavities, and dump.All system components must be kept under ultrahigh vacuum standards to prevent beam scattering with residual gas.In the present study, the vacuum requirements of the beamline are defined and simulation vacuum and gas flow in the accelerator are presented.

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Section: Outgassing and Conductancementioning

confidence: 96%

Section: Vacuum Apparatusmentioning

confidence: 99%

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Vacuum properties of TARLA

Aksakal¹,

Arikan²,

Nergiz³

2013

Turk J Phys

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“…pipe, normally maintained at 20 K, proves very helpful in containing the helium discharge, and buffering flow-rates of up to ll kg.s·1 per cryomagnet [10]. The low hydraulic impedance of this l50-mm diameter The pressure and temperature conditions in all these lines are listed in Table 2, for different modes supports and thermal shield between 50 and 75 K.…”

Section: Introduction In Progressmentioning

confidence: 99%

“…The magnets. The heat inleak budgets for these cryostats, estimated from detailed construction drawings, and half-cell cooling loops, as well as electrical feedthroughs for the independently-powered orbit correction insulation vacuum barrier and a technical service module housing the local cryogenic components of the The short-straight section cryostat [16], based on the same design principles, also includes an INFN (Italy) cooperation programme, has been successfully tested in the spring of 1994 [10].…”

Section: Introduction In Progressmentioning

confidence: 99%

95/00444 Superfluid helium cryogenics for the large Hadron Collider Project at CERN

1995

Fuel and Energy Abstracts

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Superfluid helium cryogenics for the large hadron collider project at CERN

Lebrun¹

1994

Cryogenics

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A . -S (fg { LHC Note 274 CERN EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH elevation differences of up to 22 m. OCR Output producing and distributing refrigeration to the adjacent half-octants, over a length of 1.7 km and across other. As a consequence, the LHC cryogenic system is based on eight octant cryogenic plants, each from 50 to 150 m below ground, with eight evenly-spaced access areas at a distance of 3.3 k.rn from each geometry: a quasi-circular tunnel composed of eight octants, on a slope of 1.4 % and at a depth ranging machine will reuse civil engineering and infrastructure from LEP, and is thus constrained by the existing The basic design parameters of the LHC, operating as proton collider, are listed in Table 1. The integrate them reliably in a high-energy accelerator with high-intensity beams.cryogenics to an unprecedented scale, to develop them well beyond their present state-of-the-art, and to rests on the ability to push the key technologies of applied superconductivity and large-capacity helium below 1.9 K, for guidance and focusing of the stiff hadron beams. The technical success of the project thus use of high-field, twirr-aperture superconducting magnets, operating in pressurized superfluid heliumThe LHC also represents a major technical challenge for accelerator builders. It will make intensive long-standing tradition of efficient international collaboration.injectors, the infrastructure of a large laboratory and the technical expertise of an experienced staff with a accelerator complex, the LHC will make optimal use of existing resources, such as the efficient network of the predominance of matter over antimatter in today's universe. As the latest addition to the CERN concems fundamental issues such as the origin of mass and the breaking of symmetry, which accounts for the way for progress beyond the range of the "standard model" of modern physics, in particular as exploration of the structure of matter and of the basic forces acting between its constituents, thus opening particle physics community now agrees that the LHC is the most adequate instrument to continue the matter at the very fine scale of 10·19 m, i.e. to resolve the quarks which constitute the nucleons. The protons and ions at higher energies than ever achieved before. This will allow to probe the structure of tunnel of the existing LEP collider (Figure 1), will accelerate and bring into collision intense beams of physics [1]. This machine, to be installed close to Geneva (Switzerland) in the 26.7 km circumference CERN is preparing to build the Large Hadron Collider (LHC), a unique research facility for particle

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Thermal behaviour and cryogenic performance of the first CERN/INFN prototype dipole cryomagnet for the CERN LHC project

Cited by 4 publications

References 4 publications

Vacuum properties of TARLA

Vacuum properties of TARLA

95/00444 Superfluid helium cryogenics for the large Hadron Collider Project at CERN

Superfluid helium cryogenics for the large hadron collider project at CERN

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