Solid State Detector Section (TA1-SD)

QA The Solid State Detector Section (TA1-SD) and the Divisional Silicon Facility (DSF) at CERN • some background • our activities • DSF C. Joram ...
Author: Bertram Rich
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QA

The

Solid State Detector Section (TA1-SD) and the

Divisional Silicon Facility (DSF) at CERN

• some background • our activities • DSF

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

“CERN” would like ... • to group and strengthen support for solid state detectors (SSD) ® sharing of facilities / access to centrally maintained services • to concentrate current SSD R&D projects. Bring people together who work on similar topics • to continue and intensify SSD R&D for future experiments (LHC upgrade, Linear collider, etc.). Much will depend on support by experiments and member states ! A new section has been created in January 2001 dedicated to support and R&D in the field of solid state detectors http://cern.ch/ssd-rd/ EP / TA1 - SD = Experimental Physics Div. / Technical Assistance Group 1 - Solid State Detectors C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

http://cern.ch/ssd-rd/

TA1-SD Who are we and what are we doing ? Staff: 3 phys., 2 eng., 3 tech., 2 ind. tech., 2 stud. Our activities

• Thin films (CsI PC, mirrors) + glass, fabrication & characterization

A. Braem

• Development of the Pad HPD (Hybrid Photodiode)

C. Joram

• Irradiation and characterisation of Si sensors and electronics

M. Glaser

• Radiation hardness studies (formerly ROSE / RD48)

M. Moll

• Wire Bonding • Divisional Silicon Facility

K. Mühlemann, I. Mcgill, supervized by A. Honma (CMS) C. Joram, A. Honma

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

Thin film + glass activities DELPHI Barrel RICH

ALICE COMPASS HARP ...

spare mirror type 6 #8 100 90 80 70 R [%]

60

8/5/01

50

30/3/88

40 30 20 10 0 150

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l [nm]

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

The Pad HPD R&D project Hybrid Photodiode with visible light PC and pixelized (2048) silicon anode 127 mm

Si detector

VA2 chips

Wire bonds

Ceramic with 2signal layers

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

DOFZ - Diffusion Oxygenated Float Zone

Radiation Hardness studies

5

[O] [atoms/cm3]

(ROSE / RD48)

9d 1200oC 12h 1100oC 6h 1100oC

1017 5

1016 0

30

60

90

120

150

depth [mm]

Vdep (200mm) [V]

2000 1500

More details in Michael’s talk tomorrow.

2000

standard silicon

ATLAS

1500

1000

1000 operation voltage: 600V

500

500

oxygenated silicon 0

1

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time [years] C. Joram EP / TA1 - SD.

1st

workshop on QA issues in Si detectors. 17 May 2001

7

8

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10

Irradiation and characterisation of detectors and electronics

• 4 shuttle systems in PS complex (protons, 24 Gev/c, neutrons 1 MeV) More details in Maurice’s talk tomorrow.

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

Wire bonding of sensors and hybrids

http://cern.ch/ssd-rd/seminar/transparencies/01-04-04-ss-alan-honma.pdf

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

The Divisional Silicon Facility Purpose Provide appropriate space and basic technical facilities for - bonding - assembly - testing of solid state detectors - modifications - repair - R&D Basic idea Group the assembly and test areas of LHC experiments around a common bonding lab under responsibility of division (EP/TA1-SD). Bonding lab is open to all users (also non -LHC ones)!

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

Divisional Divisional Silicon Silicon Facility Facility

What are the requirements of the LHC experiments ?

Divisional Divisional Silicon Silicon Facility Facility

• access to bonding lab: all 4 experiments. • assembly and test zones: • • • •

ALICE ca. 200 m2 ATLAS ca. 300 m2 CMS 1000m2 (will prepare a zone under own responsibility, B186, 2nd floor) LHCb ca. 50 m2

Cleanroom classification find compromise between cost, noise, discipline çè risk of detector or equipment failure due to dust. Divide zone up into 3 sub-zones: • bonding lab (SSDBL) 100.000 (zone C)

Temperature and humidity control T » 21 ± 1ºC , H » 45 ± 5% C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

Hall 186, current state.

186

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

Divisional Divisional Silicon Silicon Facility Facility

Agreed sharing of area: SSDBL / ATLAS / ALICE / LHCb (CMS uses upper floor of B 186)

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

Divisional Divisional Silicon Silicon Facility Facility

Basic infrastructure •

New electricity network



New lighting



Structured telephone and ethernet



Gas supplies (N2, Ar, CO2, comp. air)



Cooling water, vacuum distribution lines



Special floor (antistatic) and wall painting (washable)



Air locks between non-clean and clean zones



False ceiling in zones A and B.

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001

The Divisional Silicon Facility

Current Status • Performed a conceptual study of air treatment • Technical discussions and price estimates for all subprojects S » 1 MCHF Discussions with division and LHC experiments on financing promising. Project planning • • • • • •

market surveys out: calls for tender out: deadline to tenders: award of contracts: start of works: start of operation

this week August 2001 October 2001 November 2001 December 2001 March/April 2002

Cooling / ventilation handled by ST/CV

C. Joram EP / TA1 - SD. 1st workshop on QA issues in Si detectors. 17 May 2001