(january 29, 2007)
(february 19, 2004)
A straight-forward cross check deflection measurement of the box is done. 
(january 13, 2004)
3D measurement of the first box is in preparation.  

november 18, 2002
a  0.3mm foil is measured at 10 mBar:
april 16, 2002
Two foils are measured:
    AlMg3 Foil 0.2mm thick
    prim. vac. > sec. vac.
    pressure
    [mbar]    		deflection
    [mm]
    30.2
    50.3
    70.4
    90.5
    100.55
    sec. vac. > prim. vac.
    pressure
    [mbar]    		deflection
    [mm]
    2.40.2
    30.3
    4,50.4
    50.5
    60.6
    AlMg3 Foil 0.28mm thick (CERN material)
    prim. vac. > sec. vac.
    pressure
    [mbar]    		deflection
    [mm]
    30.1
    60.2
    90.3
    100.33
    sec. vac. > prim. vac.
    pressure
    [mbar]    		deflection
    [mm]
    30.1
    50.2
    6.50.3
    100.5 
november 27, 2001
The foil has been tested at an under and over pressure of 15 mbar. The
deformation observed was 320 micron and 200 micron, respectively.
This deformation was completely elastically.
LINKS TO RELATED SITES
  • Prototype work
  • Finite Element Alalysis Calcaluation
  • leak test
  • rupture test
  • Welding Jig
    		•