http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Situation du projet collier pour préparation du 'Work Package' en Iran

prepared by :

M. Oriunno  & D. Druzhkin   

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Shielding:Final optimization: April 03

thin pipe 13-18 m good for 1034 pp with no CASTOR (vac to be checked)

“CASTOR”

T2

Respect max torque on RS hingesEqualize load on HF jacks

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

HF Weight Break down (HF EDR):

HF = 215 t

Table = 25 t

Risers = 18 x 3 t

Mini Racks = 0.250 x 4 t

TOTEM Platform = 5 t

Grand Total = 300 t

Va Vb

Collar Weights

Collar 2 x 4395 Kg

Table 1 x 2450 (1 x 4550 with CASTOR) Kg

Platform 1 x 5100 Kg

Grand Total 18440 Kg < 20 tons

Constraints on the max. loads on the jacks

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Final optimization: April 03

Neutron (E>100keV) flux maps (Mika Huhtinen)

-as good as before, but withthin beampipe.-better balanced along z. (no particular weak-point)

OK for pp < ~ 1033 cm2s-1

pp 1034 cm-2 s-1

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Update of the parameters

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Update of Parameters

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Update of Parameters

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

The Conceptual Design

Collar Shielding independent from Vacuum Cahmber/T2/CASTOR/BCMs

Possibility to stage the detectors/services independently

Minimal system : Collar shielding close around the vacuum chamber

Full occupancy system : T2/CASTOR/BCM

MODULAR SYSTEM

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

The evolution

T2 GEM

CASTOR

Table

CollarOnce upon in a time a shielding…….

…today a CMS region with an high density of detectors, monitors and services !

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Table of Collar with sliding mechanisms

Manual mechanism for CASTOR Opening

CASTOR cradle

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Table of Collar with CASTOR, BCM2 and the T2 sliding mechanism

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Detailed Drawings

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Detail drawing half collar

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Detailed drawing Collar Table

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Collar table study

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

The platform for the collar shielding

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

http://totem.web.cern.ch/Totem/

M.Oriunno/ D.Druzhkin

Finite Element Analysis

Weights

Collar 2 x 4395 Kg

Table 1 x 2450 (1 x 4550 with CASTOR) Kg

Platform 1 x 5100 Kg

Grand Total 18440 Kg < 20 tons