Frames and holders
In most experiments the targets are mounted in the frames presented in the photo below
However, there are also experiments with specific requirements concerning ‘frame’.
This target consists of 15 consecutive sections of rolled gold foil (thickness: 25 µm; diameter: 2.2 mm) glued on Kapton® tape and arranged one after the other in a special shaped carbon tube approx. 7.5 cm long and with an outer diameter of 2 cm. It was made for HADES experiment in collaboration between the target laboratories of GSI and of the Technical University of Darmstadt in Germany.
The other type of targets are the production targets. Below you find the photo of Pb target providing the neutrons at n-TOF installation at CERN. It is composed of 6 thick plates of high purity lead 60×60 cm2 (5 pcs are 5 cm thick and 1 has 15 cm). More details you may find in https://cds.cern.ch/record/2808470/files/document.pdf
Techniques
Along the well known techniques such as vacuum evaporation, sputtering, rolling or powder pressing the technique known as DoD (Drop on Demand) is used to create targets of various materials not suitable for classical methods
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Page is open to be constructed with help of ALL MEMBERS. Any help, photos from target makers are very welcome.
PHOTOS listed below are very awaited:
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- Types /various shapes of frames:
- Solid targets:
– Targets selfsupporting and on the backing
– Various thicknesses (e.g. nearly transparent C and alu), thick pellets for isotope production
– deposit on betaine and detergent - Gaseous targets:
– big containers, dripping frozen - Strippers:
– solid (C), big foils from RIKEN?, C-frame from HIL,
– gaseous,
– liquid metals - Shipping/transportation containers:
– short/long distance
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