- Tools to align, mill (both ends) and polish (one end of) the scintillating fibers
(picture below)
- Fibers alignment tool.
(picture below)
- A carbon fiber sheet (1mm thick) is then glued on top of the fibers plane.
(picture below)
- Make sure nothing moves until the glue has cured !
(picture below)
- The scintillating fibers are now glued on the Carbon fiber sheet
(picture below)
- Test the correct insertion of the clear fibers before glueing
(picture below)
- earlier version of the PMT cookie (the final version is made of Al)
(picture below)
- the clear fibers are inserted into the PMT cookie
(picture below)
- a second Carbon fiber sheet is glued on top of scintillating fibers plane. It covers the glue-joints and prevents clear fibers from peeling . Fibers inserted in the cookie are milled to form an optical interface to the PMT.
(picture below)
- Hamamatsu R5900-M16 multi-anode PMT installed at one end of S2.
(picture below)
- the final S2 prototype is being inserted in the cosmic ray telescope in our lab.
(picture below)
- looking at PMT signals with a mobile digital oscilloscope.
(picture below)
