the forward rpc system (tdr)
DESCRIPTION
The forward RPC system (TDR). China. “ Thin design everywhere ”. Korea. Pakistan. Gap production Korea. Front-end electronics Pakistan. 2. Existing at present. China. Pakistan. Staged. Low eta chambers identical for stations 2,3 and 4. - PowerPoint PPT PresentationTRANSCRIPT
W.Van Doninck Re-scope TDR August 2008
The forward RPC system (TDR)The forward RPC system (TDR)The forward RPC system (TDR)The forward RPC system (TDR)
ChinaChina
KoreaKorea
PakistanPakistan
Gap production
Korea
Gap production
Korea
Front-end electronics
Pakistan
Front-end electronics
Pakistan
“ Thin design everywhere ” “ Thin design everywhere ”
RE1/1
RE1/2
RE1/3
RE2/1
RE2/2
RE2/3
RE3/1
RE3/2
RE3/3
RE4/1
RE4/2
RE4/3
No. of chambers 36*2 36*2 36*2 18*2 36*2 36*2 18*2 36*2 36*2 18*2 36*2 36*22
W.Van Doninck Re-scope TDR August 2008
Existing at presentExisting at presentExisting at presentExisting at present
RE1/1
RE1/2
RE1/3
RE2/1
RE2/2
RE2/3
RE3/1
RE3/2
RE3/3
RE4/1
RE4/2
RE4/3
No. of chambers 36*2 36*2 36*2 18*2 36*2 36*2 18*2 36*2 36*2 18*2 36*2 36*2
China
Pakistan
Staged
Low eta chambers identical for stations 2,3 and 4
W.Van Doninck Re-scope TDR August 2008
Restoring the TDR system ?Restoring the TDR system ?Restoring the TDR system ?Restoring the TDR system ?
Build station RE4 i.e.144 RPC of the low type
Services to the RE4 station
High RPC’s: 72 RE1/1 + 36 RE2/1 + 36 RE3/1 (high rate!)
Services to high RPC’s (gas & cooling foreseen)
Restore HV to 1 channel/chamber (NOT 2 ch/ch)
Little design and integration required
Requires YE4 shielding walls to support RE4
Price tag (without link and trigger system) ~ 4.3 Mio CHF
W.Van Doninck Re-scope TDR August 2008
Improvement from extra planeImprovement from extra planeImprovement from extra planeImprovement from extra plane
Results shown for range of
RPC efficiency & noise
W.Van Doninck Re-scope TDR August 2008
A possible road to a 5 station systemA possible road to a 5 station systemA possible road to a 5 station systemA possible road to a 5 station system
Support RE4 From YE3
Move the present RE2 station to YE4 to become RE4
Rebuild a new DOUBLE station RE2 ( Call it newRE2)
i.e. 144 “packages” for the low part.
Limit the services to present station RE2 (LBB,gas,etc…)
Hence make AND/OR on the chamber package.
May need extra HV, LV. NO increase of the trigger system wrt TDR
Live in EXISTING envelope (no shimming of magnet).
Design work and integration required !
Rest of this talk (also see Luc’s talk) High part as before (with RE2/1 double RPC)
Price tag (without link and trigger system) ~ 6.0 Mio CHF
W.Van Doninck Re-scope TDR August 2008
New RE2: double RPC with on New RE2: double RPC with on chamber AND/OR logicchamber AND/OR logic
New RE2: double RPC with on New RE2: double RPC with on chamber AND/OR logicchamber AND/OR logic
See Luc’s talk
W.Van Doninck Re-scope TDR August 2008
Possible (aggressive) timeline for Possible (aggressive) timeline for phase Iphase I
Possible (aggressive) timeline for Possible (aggressive) timeline for phase Iphase I
Mumbai RPC conference
W.Van Doninck Re-scope TDR August 2008
Status of discussionsStatus of discussionsStatus of discussionsStatus of discussions
Korean Gas gap production facility to remain active and funded
Mechanical parts from China (funded)
Continuing help from barrel RPC’s (FEB, Coincidence etc…)
Keep the ISR lab facilities active (continued support from CERN )
Enough funding available ?
Upgrade is estimated at ~ 6 Mio CHF (cfr. RRB document)
Confirmed partnership: Belgium-China-India-Korea-Pakistan
Under discussion: CERN-Italy-Iran-Egypt
Define the responsibilities among the partners
The FW RPC upgrade is mandatory for physics at the design luminosity of LHC and even more so for SLHC
The presently build initial system of 3 stations at low requires to be more than doubled !
W.Van Doninck Re-scope TDR August 2008
RE4 on YE3RE4 on YE3RE4 on YE3RE4 on YE3
W.Van Doninck Re-scope TDR August 2008
InterfaceInterfaceInterfaceInterface
W.Van Doninck Re-scope TDR August 2008
RE4 near yokeRE4 near yokeRE4 near yokeRE4 near yoke
W.Van Doninck Re-scope TDR August 2008
RE4 near yokeRE4 near yokeRE4 near yokeRE4 near yoke
W.Van Doninck Re-scope TDR August 2008
And off yoke RE4And off yoke RE4And off yoke RE4And off yoke RE4
W.Van Doninck Re-scope TDR August 2008
Envelope 626+20=646mm of 655 Envelope 626+20=646mm of 655 availableavailable
Envelope 626+20=646mm of 655 Envelope 626+20=646mm of 655 availableavailable
626 mm
W.Van Doninck Re-scope TDR August 2008
Summary and conclusionsSummary and conclusionsSummary and conclusionsSummary and conclusions
RE up-scope required by Physics at the LHC design Luminosity
We can do better than the TDR version at little extra cost
Collaboration ~ defined and funding (at least for Phase I) secured
Mechanics and gas gaps defined and installation scenario understood
Details on services still to be finalized
We seek approval for Phase I to start orders of HPL and
mechanics