RPC project Upgrade phase I

RPC project Upgrade phase I

Pierluigi Paolucci

2

RPC system in the forward region• The forward region of the RPC project consists of: 4 disks equipped with 3 rings

of chambers• The present system has 3 disks equipped with 2 rings of chambers

– Barrel trigger is done with 6 layers– Forward trigger is now 3/3 (design was 3 out of 4)

• Phase I: 2 rings in disk 4th

• Phase II: |η| > 1.6

To bring to completionCNS1 - 22 novembre 2010 P. Paolucci (Napoli)

P. Paolucci (Napoli) 3

InstitutionsThe groups from Pakistan, China and Korea have already committed

themselves to this completion. In addition, groups from Belgium, India, and Egypt have confirmed

their involvement in the project while negotiations with Italy are under way to provide the off-detector electronics.

Other countries (Finland, Poland) have expressed an interest in joining the project, although they have not yet committed to any financial contribution.

Recently interest has been expressed from Iran and Colombia and negotiations have started to define possible contributions and areas of involvement.

CERN will joint the RPC project

In red the approvedCNS1 - 22 novembre 2010


Chamber production and test• High Pressure Laminate (HPL):

– Raw material production at the Puricelli industry near Milan– Quality check and resistivity measurement at INFN Pavia

• The gas gaps:– chambers will be produced by KODEL at Korea University. A total of about 660 (432 + spares ) gaps

are needed• Honeycomb boxes and auxiliary parts will be produced in “Beijing Axicomb Technology Co., Ltd”

(China)• Readout strips will be produced in “Beijing Gaonengkedi GT Co., Ltd” (China)• Gap and chamber test sistes:

– CERN site at 904: CERN and Pakistan group, which has an outstanding experience in chamber assembly, will provide qualified manpower for the assembly and test.

– Belgium site: The chamber construction will be the main effort of the University of Gent. The manpower to perform the assembly will be provided by both the University of Gent and the Vrije Universiteit Brussel.

– India site: Under India-CMS-RPC collaboration, RPC assembly and testing would be done at two sites: Nuclear Physics Division-Bhabha Atomic Research Centre (NPD-BARC) at Mumbai; and Panjab University at Chandigarh.

CNS1 - 22 novembre 2010


Installation and commissioning• The upgrade of the forward region is part of the RPC

project and so all the people and experts will be involved in the commissioning and integration of the full system

• Bari group (Colaleo, Iaselli, Loddo, Maggi, Nuzzo, Pugliese) will be involved in the quality control program:

• Quality control of single gap at CERN – 1 physicist + 2 technicians (0.3 FTE)

• Quality control of chamber production at CERN – 1 physicist + 2 technicians (0.3 FTE)

• Quality control of FEB production • 1 engineer ( 0.2 FTE)



Off-chamber Electronics



ElectronicsThe 144 new chambers have to be equipped with FEB, Link board and power systems :

•FEB and distribution boards will be produced under the F. Loddo supervision (project founds)•Power system will be ordered to the CAEN under the Napoli supervision (Pakistan budget)• The CMS electronic/trigger groups have strongly recommended to review to “old” project and to

implement all the protections and improvements needed (comes from the experience accumulated in these years)

• The main goals are: build an updated and more robust system and involve more groups in the RPC trigger in order to compensate for the Warsaw dependence.

•Link Board system will be designed (revision of the old project) and produced by Napoli, LNF and Warsaw groups:

–24 + 2 link board crates (3.000 euro each) 78 K€–144 + 28 link boards (800/900 euro each) 124 K€–24 + 5 control boards (900/1100 euro each) 29 K€– cable and connectors 30 K€ –8 + 2 LV system (CAEN) 50 K€–7% Spare for the whole RPC system costs 50 K€

oTotal cost of the Link Board Project is about 361 KeuroCNS1 - 22 novembre 2010


Link board interests and manpower

• Napoli is interested in the design of the “up-to-date” system – P. Paolucci, S. Buontempo, N. Cavallo (sabbatical year in the 2011)– Electronic Service: 8-7 months in the 2010 and 2011– Napoli is now (2010) designing the “up-to-date” LB system including: LVDS suppressor,

LV regulators and new FPGA configuration. – First design almost ready (80%). Cost estimation ready

• LNF is looking at the test and commissioning of the system– L.Benussi, L.Passamonti (Tech.), D.Pierluigi (Tech.) and Electronic Service: 3-4 months

in 2011• Warsaw is in charge for the test, commissioning and installation of the system• Warsaw is the only group having the full expertise of the link board hardware

and firmware system• The participation of new groups at the LB project has been strongly

recommended by the CMS management



Preliminary schedule2011 2012

J F M A M J J A S O N D J F M A M J J A S O N D

LB prototype

LB test

CB prototype

CB test

Lbox

production

Test 904

CNS1 - 22 novembre 2010 Installation and commissioning in the 2013

Prototypes test at CERN: 1 tech + 1 phys for 3 months (2011) + Warsaw Test at CERN (blg 904): 1 tech + 1 phys for 6 months (2012) + Warsaw Installation: 2 tech + 1 phys for 6 months (2013) + Warsaw Commissioning: 1 phys for 3-4 months (2013) + Warsaw


T/H sensors Sensors for T and H monitoring in RE4 new endcap stations and for existing stations RE2 and RE3 (in collaboration with LNF, Napoli and CERN)

• Expertise on FBG sensors in HEP detectors (FINUDA, BTEV, CMS) and industrial applications

• S.Bianco, M.Caponero, S.Colafranceschi (dott.), G.Breglio NA, S.Buontempo, L.Passamonti (tech), D.Pierluigi (tech), M. Giordano (ric) e A. Cusano (ric)

• Explore possibility of using optical sensors for gas contaminants (PRIN funded) F.Felli, M.Parvis, G.Saviano

• RESOURCES• Clean room in Frascati for sensors assembly and QA/QC• Lab space in Frascati• Use of lab facilities in Napoli, Ing. Roma1, Polito

• Total core budget PRELIMINARY• Frascati + Napoli 75 k€• CERN 45k€



Cost and manpower

CERN ChinaBelgium India Italy Korea

Pakistan Egypt Total

700 500 800 800 600 400 210 200 4210KSFCNS1 - 22 novembre 2010


Conclusions1. Bakelite test – Pavia lab.2. Chamber and single gap test and commissioning – Bari3. Electronic production supervision – Bari/Napoli4. Link board system (360 K€) – Napoli, LNF and Warsaw

– Final and formal agreement with Poland still not ready

5. T/H sensors (75 K€) – Napoli (centro di competenza con CNR ed Univ. del Sannio), LNF

6. Project has been already discussed in CMS Italy and in the Italian Institution.

I.N.F.N. foreseen contribution is 600/4200 KCHFCNS1 - 22 novembre 2010

P. Paolucci (Napoli) 13CNS1 - 22 novembre 2010 - 13 -

T,H Sensors for RE2,3,4 RPC chambersFrascati, Napoli, CERN

• Temperature (T) and relative humidity (H) are parameters that affect the response of RPC detectors.

• Typical requested precisions are +-0.2oC for temperature monitoring and +-2% for H monitoring.

• Optical sensors based on the Fiber Bragg Grating (FBG) are radiation hard; insensitive to magnetic field; precise; no

electrical noise; ease of installation; minimal cabling; precise.

• Each new RE4 ,and existing RE2 and RE3 chamber will be equipped with one FBG sensor for T measurement.

• H monitoring will be performed via conventional electronic sensors.

• An R&D is in progress to develop optical sensors for HF detection in the RPC gas mixture.

• Bibliography1. RPC Upscope Technical Design Report2. L.Benussi et al., ``The Omega-Like: A Novel Device Using Fbg Sensors To Position Vertex Detectors With

Micrometric Precision,'' Nucl. Phys. Proc. Suppl. 172 (2007) 263; M.Caponero et al., Optical sensors at INFN Frascati for CMS: past, present and future , CMS Upgrade week April 28 2010.

3. A. Laudati, G. Parente, G. Lanza, A. Cusano, A. Cutolo, M. Giordano, S. Balzarini, "A New Hydrophone Based on Fiber Bragg Grating Sensor", PHOTONICA Exp. 2008, 26-27 November 2008, Milano, Italy ; A. Laudati, G. Parente, G. Lanza, A. Cutolo, A. Cusano, G. Breglio, M. Giordano, A. Antonelli, G. Bocchetti, "Railway Monitoring and Train Tracking by Fiber Bragg Grating Sensors: A Case Study in Italy", FIRST MEDITERRANEAN PHOTONICS CONFERENCE 25-28 June 2008, Ischia, Italy.

4. N.Beni, S4CMS: A combined monitoring of sensors in CMS experimental site, presented at Siena 2010.

RPC project Upgrade phase I

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