Status & Plans The CBM-MPD STS Consortium for CBM and

NICA-MPD Projects

Yuri Murin, JINR, DubnaJINR-SINP-KRI-SPbSU-SESRITIIE-BITP-IHEP-GSI

13-th CBM, GSI, March 10, 2009

• Dubna• GSI, Protvino, Dubna• Dubna,

Protvino• Kharkov• St.Petersburg• St.Petersburg

• 7 institutes• 3 countries

• Modules assembly • Components • Ladder assembly • Radiation tests• In-beam tests

• GOAL: to organize an East Slavic cluster of teams for production of the CBM and MPD STS

The Consortium Structure

The Starting Point

13-th CBM, GSI, March 10, 2009

The Consortium tasks for 2008

Technical task definition for CBM STS ladder section (ALL)

A pilot batch of Russian-made CBM STS Si sensors (SINP)

Design and production of specific mechanics sample elements (Igolkin@KRI)

Development n-radiation site the CBM STS components (KRI Cyclotron Lab, SPb)

Task Force interaction improvement (ALL)

Infrastructure development of the Consortium sites (KRI,JINR)

Support of microcable production team in Kharkov via JINR-GSI cooperation

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CBM STS Ladder: Steps to Technical Task Definition (ALL)

• To agree of ladder design• To agree of sensor topology• To agree of connection to FEE

Solution AGREED : flat semi-tiling of sensors on the 3D CF support ladder

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CBM STS Sensors: Pilot Batch

(M.Merkin) Manufacturer RIMST– Zelenograd, Moscow region

Active area - 40.0 x 60.0 mm2Strips pitch on both sides of detectors - 58

µStereo angle - ±7.5degrees

Number of strips on each side - 1024 (8 readout chips)

With bondning/test pads topology suitable for TAB bonding (standard for the whole

CBM STS !)

Status : Draft of the contract (three mile stones!) is ready, pending on baby-sensors photomask files accomplishment (Merkin). Expected time for the first batch is July 31

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CBM STS: CF sample prototypes (S.Igolkin)

1/2 Technical drawings of the 4-th station

have been accomplished but found not to fit the magnet size ( currently passed for the ANSI calculations)

Jigs and accessories (vacuum oven for the CF ladder processing) are under design and production

Imitating samples for the 3-sensor module and sensor support pins manufactured and tried for the rigidity

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CBM STS: CF sample prototypes (S.Igolkin) 2/2

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Radiation test site @ KRI, SPb,RF

(V.Jakovlev & S.Lashaev, KRI)17 MeV pBe->n or DD-

>n? From

9Be(p,n)9B (g.s.) reaction;From

9Be(p,n)9B* reaction;9Be + p

4He + 5Li + n – 3.5 MeV

8Be + p + n – 1.7 MeV 2

4He + p + n – 1.6 MeV 0

50

100

150

200

0 2E+12 4E+12 6E+12 8E+12 1E+13

Neutron fluence (n/cm2)

Vfd

v (

В)

Vfd(init)=20VVfd(init)=30VFit

Leakage current as a function of 1 MeV equivalent neutron fluence

0,00

200,00

400,00

600,00

800,00

0 5E+11 1E+12 1,5E+12 2E+12

Neutron fluence (n/cm 2)

Idet

(n

А)

Task Force Interaction Improvement 1/3

To keep the teams having a clear joint goal each year (demonstrator test policy with tests in Protvino)

To develop the infrastructure of the key sites (restoration of rooms and procurement of capital equipment)

To Organize regular work Work Meetings

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Task Force Interaction Improvement 2/3: In-beam tests in Protvino

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ThanksThanks to Yuri Zaitsev, ITEP for funding!

ThanksThanks to Yuri Zaitsev, ITEP for funding!

Task Force Interaction Improvement 3/3

2-nd Work Meeting of Consortium in Protvino June, 2008

3-d Work Meeting of Consortium in Sortavala, Karelia, June 1-4, 2009

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2008 Achievements The Consortium chain started to operate as a whole Mechanical design of the ladder almost accomplished n-irradiation site @KRI 20 MeV cyclotron evolved Preparations for prototype manufacturing

undertaken @ KRI(CF production, bench for the C-I-V measurements), JINR (Assembling&Certification)

First stage of organization of the CBM STS in-beam testing site @ Protvino realized

Additional funding for Kharkov and Dubna teams acquired for 2009 via JINR-GSI scientific cooperation

Grants for the 3-d Work Meeting gained from RF focused funding agencies (ISTC)

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Tasks to remedy in 2009 The mismatch of the STS size and the clearance

of the Magnet n-XYTER FEBs supply for the JINR team CF Prepreg supply for Igolkin Mold manufacturing for Igolkin Other problems could be resolved locally

13-th CBM, GSI, March 10, 2009

13-th CBM, GSI, March 10, 2009

Basic Problem: Keep going on grants only

2009 Tasks and their sharing

Demonstrator 1: A 3-sensor module prototype

Organization of in-beam tests in Protvino, November, 2009

Formulating irradiation plan for KRI Cyclotron team for 2009

Testing bench with collimated Ru-106 betas @ JINR to operate with n-XYTER FEB read-out

Production of CF parts for the full ladder prototype

Cooling system definition work plan (additional funds application)

Analogue long cable conceptual bench tests based on FEBand existing Demonstrator-0B and n-XYTER FEBs

Attraction of new members to Consortium (Czech Republic for sensor production?)

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Thank you for your attention!

Acknowledgments to all many Consortium members not

mentioned!

13-th CBM, GSI, March 10, 2009