Vacuum brazed assemblies for basic research and industry

In research centres such as CERN, GSI or SLAC, particle accelerators help to learn more about the basics and constituents of the universe. Final pressures down to < 1·10-10 mbar, outgassing rates below 5·10-10 mbar·ls-1·cm-2, maximum leakage rates of 1·10-10; mbar·l·s-1 the dimensional accuracy of all vacuum components as well as the virtually particle-free surface are the key data for this application. With the development and manufacture of low-temperature collimator systems, ion sources, thermal chambers, storage rings, butterfly valves and various welded parts, REUTER TECHNOLOGIE has already been able to design and produce a large number of different components for this high-technology sector.

Particle accelerator component with RF structures
Particle accelerator component with RF structures
Beamline, fully assembled in a clean room
Beamline, fully assembled in a clean room

Product example: Low-temperature collimator system, operating temperature 4K

References in the field of accelerator technology:

  • Design and manufacture of ion sources of stainless steel and copper
  • Vacuum-brazed copper components with extremely smooth surface (Ra ~ 0.1) and precisely fitting 3D profile as waveguide for rf radiation
  • Thermal chambers with sample plates that can be cooled (-80 °C to +150 °C) of copper and stainless steel with vacuum-brazed and explosion-plated assemblies
  • Quick-acting butterfly valves, 10 ms closing time and leakage rate 1∙10-9 mbar∙l∙s-1 decoupling/split units for particle beam of stainless steel, Cu-ETP and ceramic
  • Annealed welding assemblies and chambers with permeability < 1,005 and/or low-remanence, UHV-suitable, water-cooled target wheels of stainless steel, copper and ceramic
  • Thin-walled (0.3mm wall thickness) steel tubes with circular or elliptic cross-section of stainless steel or copper
  • UHV-suitable, water-cooled target wheels of stainless steel, copper and ceramic
  • Thin-walled (0.3mm wall thickness) jet pipes with circular or elliptic cross section of stainless steel or copper

References in the field of storage rings:

  • Design, manufacture and installation of beamline sections including beam-position diagnostic units. Installation and packaging in clean room ISO Class 3
  • Manufacture and installation of vacuum chambers for experiment stations
  • UHV sample chambers with linear and rotational movements, lubricant-free
  • UHV mirror chambers with water cooling or LN2 cooling

Electron storage rings, such as ESRF, HASYLAB, DIAMOND or BESSY accelerate electrons (or positrons) in synchotrons close to the speed of light. After that, they are injected into the circular storage ring. Suitable dipole magnets hold the electrons on their circular path and emit high-quality light at the deviation point. This synchrotron radiation is processed in the connected beam lines using monochromators and mirrors to enable tests in the vacuum at the experiment stations. In addition to this classic dipole radiation, undulators and wigglers likewise generate synchrotron radiation in the straight sections of the storage ring. Further developed versions of the storage rings with a strongly improved brilliance are the free electron lasers such as XFEL, FLASH or FERMI.

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