Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 2011o

Sensor ReviewSlides for Jörn Talk

IBL Sensor Review Kick-off MeetingCERN, May, 4th 2011

G. Darbo / INFN-Genova

Indico agenda:• https://indico.cern.ch/conferenceDisplay.py?confId=135725

Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 20112

PROTOTYPE PROGRAM & TESTS

Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 20113

FE-I4 AssembliesAlready made assemblies

• CiS: 35 of which 10 of IBL design• CNM: 8 of which 8 of IBL design• FBK: 8 of which 0 of IBL design

Assemblies to be made with priority with IBL design• CiS: 10• CMN: 7• FBK: 12 + 4 (to x-check prior assembly test with removable metal)

Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 20114

FE-I4 PerformanceAnalog performance of FE-I4 are better than for FE-I3

• Noise ~130÷150e- with sensors before irradiation, chip simulation gives a noise of 220e at 50nA leakage current and 400fF capacitance. No systematic studies done yet with irradiated sensor, but first measure confirm it.

• 3 FE-I4 irradiated (Los Alamos 800 MeV protons) at 200 Mrad: threshold dispersion does not change, while noise increases by about 20%, no systematic effects.

• No systematic studies of minimum operating threshold: unirradiated assemblies successfully tuned at 1500e- (and below).

Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 20115

FE-I4 WafersTotal of 16 FE-I4 wafer available for IBL prototypes

• 9 fully probed and analyzed• 65% average yield

Additional 6 wafer bought from spare IBM production for IBL uses. Not delivered yet.

Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 20116

Irradiated DevicesIrradiate devices with p (Karlsruhe - KS) of 23MeV and neutrons (Ljubljana - LJ) from reactor. Qualification dose: 5E15N or 5E15P neq/cm2

• Karlsruhe: DUT on SCC → test → irradiate → test → test beam• Ljubljana: DUT on SCC → test → remove DUT from SSC → irradiate → reload on

SCC → test → test beam

Plan to have for CERN test beam in May/June• CiS: 4 KS + 4 LJ - CNM: 2KS + 2LJ - FBK: 2KS + 2LJ• More devices will be irradiate to recover handling failure (especially for LJ)

Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 20117

Test Beams with FE-I4Desy:

• February

From, Alessandro, Je

ns & Philippe

Slides

No results

, only what h

as been done

Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 20118

May/June Test Beam at CERNIBL test beam: May 20 to June 13

• Morpurgo Magnet• Ciller box with temperature control

IBL

Reference for Schedule: http://sps-schedule.web.cern.ch/sps-schedule/

Problem with TAX in the north area, all FT affected. At least 5 weeks delay! Risk to loose beam period!

Reviewer’s MandateG. Darbo – INFN / Genova Sensor Review, 4 May 20119

Cold Box for Test BeamSpecial cold box in preparation for CERN test beam in May/June

• Up two 6 modules, design specs:• Sensor temperature: -20ºC• Heat load: 5 W / module• Adjustment w.r.t beam line of pitch and jaw angles

• Active liquid cooling of individual modules: graphite cold plate in contact with the DUT (low X0)

• Commercial recirculating chiller 120 W @ -40ºC (LAUDA RK20-KS)• Specs: http://www.lauda.de/hosting/lauda/website_en.nsf/urlnames/KPEI-5D2MQR/$file/Yace050a.pdf