SVD Docks Markus Friedl (HEPHY Vienna) B2GM, 23 July 2012

SVD2 DOCKs 23 July 2012M.Friedl (HEPHY Vienna): SVD Docks2  Installed DOCK boxes mounted on CDC end wall  Contained SVD2 repeaters  Made of copper (heavy) with water cooling on 3 sides  A bit tricky to close Belle due to gravitational sag into QCS  Future boxes should be lighter and/or a bit smaller (especially height)

Tentative Layout 23 July 2012M.Friedl (HEPHY Vienna): SVD Docks3 Using SVD3 box (but with water cooled copper base plate, not top = simple flip) 6 boards per DOCK (same size as SVD3 = slightly smaller than SVD2) Split: 3 for p and 3 n

Draft Design  (Top lid not shown)  Construction similar to SVD2 case  Mostly aluminum, only bottom plate copper (to be cooled) 23 July 2012M.Friedl (HEPHY Vienna): SVD Docks4

DOCK Space for SVD and PXD  Box outer dimensions (without lid flanges):  width=203 mm, height=89 mm, depth=409 mm  Total weight: 3.9 kg  Using this design, we need  BW side: 5 boxes (=SVD2)  FW side: 3 boxes (less than SVD2)  All boxes are fully used (6 x 8 = 48 FADCs)  Still enough room for PXD boxes… 23 July 2012M.Friedl (HEPHY Vienna): SVD Docks5

Overall DOCK Arrangement  Space for shielding 23 July 2012M.Friedl (HEPHY Vienna): SVD Docks6 BackwardForward SVD PXD (PXD box is only a placeholder)

Cable I/O per DOCK box (1)  To front-end (rear side towards CDC wall):  6 x 8 = 48 flat cables (50 cond.; 32 x 1 mm 2 )  A few fibers (~1mm diameter)  A few cables for temp & radiation monitoring (~1mm diameter) 23 July 2012M.Friedl (HEPHY Vienna): SVD Docks7

Cable I/O per DOCK box (2)  To back-end (front side away from CDC wall):  6 x 4 = 24 flat cables (68 cond.; 44 x 1 mm 2 )  6 LV power cables (12.5mm diameter)  2 HV round cables (~1cm diameter)  A few fibers (~1mm diameter)  A few cables for temp & radiation monitoring (~1mm diameter) 23 July 2012M.Friedl (HEPHY Vienna): SVD Docks8