10-11 Sept 2007 JRA2 - Opticon FP6 MTR 1 JRA2 Report “Fast Detector for AO” Opticon Mid-Term Review chairman: Philippe Feautrier – INSU/CNRS

10-11 Sept 200710-11 Sept 2007 JRA2 - Opticon FP6 MTRJRA2 - Opticon FP6 MTR 11

JRA2 ReportJRA2 Report“Fast Detector for AO”“Fast Detector for AO”

Opticon Mid-Term ReviewOpticon Mid-Term Review

chairman:chairman: Philippe Feautrier – INSU/CNRS Philippe Feautrier – INSU/CNRS


Content of this talkContent of this talk

Who we are?Who we are?

What we do?What we do?

Work Packages reviewWork Packages review

Highlights of the JRA2 Highlights of the JRA2

Schedule and commentsSchedule and comments

Future plans for FP7Future plans for FP7

ConclusionConclusion


Who we Who we are?are?

European Community

Opticon board

WP2 Detector procurement

Industrial partnerDetector subcontract

WP5 Detector testing

WP1 JRA-2 CoordinatorP. Feautrier

WP3 Detector Controller

WP4 Cryogenics


What we do ?What we do ?

JRA2 “Fast Detectors for AO” JRA2 “Fast Detectors for AO”

Goal as defined in Annex I of the contract:Goal as defined in Annex I of the contract:

“ “define, fabricate and fully characterize the define, fabricate and fully characterize the best possible detector working at visible best possible detector working at visible wavelengths for Adaptive Optics (AO) wavelengths for Adaptive Optics (AO) wavefront sensors.”wavefront sensors.”


1.1. 40x40 SH subapertures x 6x6 pixels/sub-aperture 40x40 SH subapertures x 6x6 pixels/sub-aperture 240x240 pixels240x240 pixels..

2.2. VersatilityVersatility: 100% fill factor / 240x240 square grid array of pixels: 100% fill factor / 240x240 square grid array of pixels that can be used with any type of WFS system; SH, curvature, or pyramid.that can be used with any type of WFS system; SH, curvature, or pyramid.

3.3. > 1.2 kHz frame rate> 1.2 kHz frame rate to match the increased spatial sampling. to match the increased spatial sampling.

Detector requirementsDetector requirements

40x40 SH-WFS (mag~10, RON=1e-)

240x240 pixels

Next Generation

Systems

EachSub-aperture

6x6 pixels

Present Systems

14x14 SH-WFS


StoreArea

Image Area

240x12024µm

StoreArea

Image Area

240x12024µm

OP 1

OP 2 GainRegisters

OP 3

OP 4 GainRegisters

OP 8GainRegisters

OP 7

OP 6GainRegisters

OP 5

The CCD 220 DesignThe CCD 220 DesignMetal ButtressedMetal Buttressed

22ΦΦ 10 Mhz Clocks 10 Mhz Clocksfor fast image to store for fast image to store

transfer rates.transfer rates.

Store slantedStore slanted to allow room for to allow room for multiple outputsmultiple outputs..

Split frame transfer 8-output Split frame transfer 8-output back-illuminated e2v-L3Vision CCD.back-illuminated e2v-L3Vision CCD.

8 L3Vision Gain 8 L3Vision Gain Registers/OutputsRegisters/Outputs..

Each 15Mpix./s.Each 15Mpix./s.


L3CCD with lower read noise winsL3CCD with lower read noise wins

Low read noise of EMCCD is clearly better for white-yellow guide starLow read noise of EMCCD is clearly better for white-yellow guide star

and better even for red GS if RON of Thick CCD > 2e.and better even for red GS if RON of Thick CCD > 2e.

Conclusion low RON (~ 0.1e-) is better than higher red response.Conclusion low RON (~ 0.1e-) is better than higher red response.

Reason e2v-L3 CCD was chosen.Reason e2v-L3 CCD was chosen.

GS Magnitude.

RON=5

RON=3

RON=2

EMCCDRON=0

Thick CCD

Strehl ratio

RON=5

RON=3

RON=2

EMCCDRON=0

Thick CCD

Strehl ratio

GS Magnitude.


Funds and detector Funds and detector sub-contractsub-contract

CCD220 funds for the first contract with e2v: 700 k€ CCD220 funds for the first contract with e2v: 700 k€ from Opticon JRA2, ~ 400 k€ from ESO internal from Opticon JRA2, ~ 400 k€ from ESO internal funds. funds. Contract signed between ESO and e2v after official Contract signed between ESO and e2v after official call for tender, e2v UK is a sub-contractor, not a call for tender, e2v UK is a sub-contractor, not a partner.partner.


The CCD220: firsts e2v The CCD220: firsts e2v CCD220 detectors providedCCD220 detectors provided


Test Camera controller is being built by a collaboration of French Test Camera controller is being built by a collaboration of French Observatories (LAM Marseille, LAOG Grenoble, and OHP Haute Provence):Observatories (LAM Marseille, LAOG Grenoble, and OHP Haute Provence):

– It will be loaned to e2v for testing.It will be loaned to e2v for testing.

– Very challenging design Very challenging design

– To be delivered to e2v next month To be delivered to e2v next month

WP3 : ControllerWP3 : Controller


WP4: mechanics and cryogenicsWP4: mechanics and cryogenics

This WP was delivered and is achievedThis WP was delivered and is achieved

Cooling specifications achievedCooling specifications achieved


Cryogenics resultsCryogenics results

-60

-50

-40

-30

-20

-10

0 0,5 1 1,5 2 2,5 3 3,5 4

Thermal modellingReal measurements Arctic Silver 5

CC

D T

em

pera

ture

(°C

)

I (A)


The OCam Test CameraThe OCam Test CameraOCam, the Test Camera of the CCD220, OCam, the Test Camera of the CCD220, is the product of the WP3 + WP4:is the product of the WP3 + WP4:


The OCam storyThe OCam story

OCam will be duplicated for a lot of European places:OCam will be duplicated for a lot of European places:– On loan to e2v for detector testingOn loan to e2v for detector testing– OCam will be delivered to IAC (normal JRA2 plan), but also OCam will be delivered to IAC (normal JRA2 plan), but also

duplicated for ESO for their CCD220 testing facility. Free OCam duplicated for ESO for their CCD220 testing facility. Free OCam license transfer between CNRS/INSU to help for ESO NGC license transfer between CNRS/INSU to help for ESO NGC developmentdevelopment

– But also implemented on the GTC…But also implemented on the GTC…

Very high probability of OCam Very high probability of OCam license transfer to Andor license transfer to Andor Technology Belfast (UK) for Technology Belfast (UK) for commercial applications commercial applications (Astronomy, WFS, medical (Astronomy, WFS, medical imaging…): our mission is not to imaging…): our mission is not to infinitely duplicate cameras. Good infinitely duplicate cameras. Good progress of negotiations.progress of negotiations.


OCam on the GTCOCam on the GTCOCam will also be used, with the CCD200 on the GTC (Gran OCam will also be used, with the CCD200 on the GTC (Gran

Telescopio Canarias), a 10.4 m segmented telescope in La Palma Telescopio Canarias), a 10.4 m segmented telescope in La Palma under contruction.under contruction.Contract currently under negociation between CNRS (owner of Contract currently under negociation between CNRS (owner of OCam) and GTC (GRANTECAN telescope, La Palma)OCam) and GTC (GRANTECAN telescope, La Palma)OCam + CCD220 will be used as WFS camera for the GTC AO OCam + CCD220 will be used as WFS camera for the GTC AO systemsystemSchedule: signature of contract: autumn 2007, delivery Schedule: signature of contract: autumn 2007, delivery ~ ~ one year one year laterlater


WP5: detector testsWP5: detector testsDetector Tests at FactoryDetector Tests at Factory

Tests under responsibility of the detector manufacturer (E2V)Tests under responsibility of the detector manufacturer (E2V)To verify basic operational parameters and detector To verify basic operational parameters and detector characteristics.characteristics.Defined in Defined in VLT-PLA-E2V-14690-0008_issue_3_TestPlan and testing VLT-PLA-E2V-14690-0008_issue_3_TestPlan and testing equipement and facilities, according to VLT-SPE-E2V-14690-equipement and facilities, according to VLT-SPE-E2V-14690-0002_issue_6_TestEquip_Req0002_issue_6_TestEquip_Req

Detector Controller and Camera supplied by JRA2Detector Controller and Camera supplied by JRA2

Tests at IAC split in 2 main topics:Tests at IAC split in 2 main topics:Laboratory testsLaboratory testsTelescope testsTelescope tests


Detector Tests in LaboratoryDetector Tests in Laboratory

Detector characterization facility will be available on timeDetector characterization facility will be available on time– All the equipment has been already acquiredAll the equipment has been already acquired– Test Bench components are computer controlled Test Bench components are computer controlled – Variable monochromatic flat field source is now under calibrationVariable monochromatic flat field source is now under calibration– Direct imaging targets are assessedDirect imaging targets are assessed

IAC Test ObjectivesIAC Test Objectives– Verification of IAC Test Bench performance with calibrated detector systemsVerification of IAC Test Bench performance with calibrated detector systems– Independent verification of all CCD220 factory test resultsIndependent verification of all CCD220 factory test results– Additional tests with emphasis on:Additional tests with emphasis on:

Long term gain stabilityLong term gain stabilityDetailed assessment of unwanted charge generation and charge confinement problems Detailed assessment of unwanted charge generation and charge confinement problems (CIC, dark current, smear, PSF) and optimization of operational parameters(CIC, dark current, smear, PSF) and optimization of operational parametersDetector / Camera health check proceduresDetector / Camera health check procedures


Detector Tests at IAC TelescopeDetector Tests at IAC Telescope

The tests will run in a Telescope, either at the Observatory of El Teide in The tests will run in a Telescope, either at the Observatory of El Teide in Tenerife or at the Observatory of Roque de Los Muchachos on La Tenerife or at the Observatory of Roque de Los Muchachos on La Palma.Palma.Telescope/IAC Test ObjectivesTelescope/IAC Test Objectives– Verification of performances of the CCD220 as the detector of a wavefront sensor Verification of performances of the CCD220 as the detector of a wavefront sensor

in a real situationin a real situation– To include the CCD220 WFS within the very-low-latency IAC AO Real Time To include the CCD220 WFS within the very-low-latency IAC AO Real Time

Controller, based on reconfigurable logic (FPGA), and test under real Controller, based on reconfigurable logic (FPGA), and test under real circumstances, at the telescope. Comparison with previous detectors.circumstances, at the telescope. Comparison with previous detectors.

– To confirm the suitability of CCD220 for AO, measure system performances and To confirm the suitability of CCD220 for AO, measure system performances and give inputs for further developments.give inputs for further developments.

– AO Tests will be performed with science grade detectors, either on loan from ESO AO Tests will be performed with science grade detectors, either on loan from ESO or bought by IAC with a new joint ESO/IAC contract for CCD220 detectors or bought by IAC with a new joint ESO/IAC contract for CCD220 detectors delivering.delivering.


Detector Test Facility at IACDetector Test Facility at IACDetector Characterization Detector Characterization Laboratory:Laboratory:– A group called LISA A group called LISA

(Laboratory of Imaging and (Laboratory of Imaging and Sensors in Astronomy) has Sensors in Astronomy) has been created at the IAC to been created at the IAC to be in charge of detector be in charge of detector testing and will characterize testing and will characterize the CCD220.the CCD220.

– LISA has a new general LISA has a new general Detector Test Facility at the Detector Test Facility at the IAC complying with the IAC complying with the requirements of the CCD220 requirements of the CCD220 test plantest plan


LISA Test Bench at IACLISA Test Bench at IAC


Status of deliverables and milestones (Month: 43)Status of deliverables and milestones (Month: 43)WP M/ D Description Status (Original)/Updated

schedule2 M1 Science group discussions about the detector specification. Achieved (6) / 6

2 M2 Concept design review to agree the specification. Achieved (6) / 6

2 M3 Detailed design review of the detector. Achieved (12) / 18

2 M4 Delivery of demonstration device detector. Achieved (18) / 32

2 M5 Frontside device test. Achieved (24) / 32

2 M6 Backside device test. Delayed (24) / 48

2 D1 Detector specifications to the manufacturer Achieved (6) / 6

2 D2 Final detector acceptance report. Delayed (24) / 50

3 M1 Complete controller conceptual design Achieved (6) / 6

3 M2 Controller design review. Achieved (6) / 12

3 M3 Delivery of detector controller. Delayed (18) / 43

3 M4 Complete controller test. Delayed (18) / 44

3 D1 Controller acceptance report. Delayed (18) / 44

4 M1 Complete cryogenic system design Achieved (6) / 24

4 M2 Cryogenic system acceptance. Achieved (18) / 37

5 M1 Complete detector tests in laboratory. Delayed (36) / 56

5 M2 AO wavefront sensor manufactured Delayed (36) / 58

5 M3 Complete detector performances evaluation in an AO system. Delayed (42) / 60

5 M4 Acceptance of the AO wavefront sensor for AO tests Delayed (42) / 62

5 D1 Test report for the results on the AO test bench and/of on sky. Delayed (60) / 64


Schedule: milestones and Schedule: milestones and deliverablesdeliverables

WP1

WP2 M1 D1

M2 M3

M4 M5 M6 D2

WP3 M1 M2

M3 M4 D1

WP4 M1 M2

WP5

M1 M2

M3 M4

D1

6 12 18 24 30 36 42 48 54 60

Elapsed time (months) 2004 2005 2006 2007 2008

Achieved:

Delayed:Management

Detector

Controller

Cryogenics

Tests


Schedule and delays: some remarksSchedule and delays: some remarksSchedule late, but this can be explained:Schedule late, but this can be explained:

Late arrival of funds at beginning of the contract (6/12 Late arrival of funds at beginning of the contract (6/12 months)months) has delayed activities where hardware/contracts are has delayed activities where hardware/contracts are concerned.concerned.WP3 (controller) and WP4 (cryogenics) strongly dependent on WP3 (controller) and WP4 (cryogenics) strongly dependent on final detector design (WP2), so did not start as early as final detector design (WP2), so did not start as early as expectedexpectedUnder-estimationUnder-estimation of the time to deliver detector controller and of the time to deliver detector controller and cryogenics (extremely challenging development, critical path)cryogenics (extremely challenging development, critical path)All these dependencies explain the delay of the overall All these dependencies explain the delay of the overall schedule, but this delay is under control . Main objectives of the schedule, but this delay is under control . Main objectives of the JRA2 will not be affected and remain compatible with the JRA2 will not be affected and remain compatible with the Opticon FP6 scheduleOpticon FP6 scheduleSome testing activities may run after formal end of the FP6 Some testing activities may run after formal end of the FP6 contract (i.e. in 2009). Should be also tested on the GTC!contract (i.e. in 2009). Should be also tested on the GTC!


FP7 proposal Edinburgh 07: FP7 proposal Edinburgh 07: " " Fast detectors for E-ELT AO Fast detectors for E-ELT AO ""

JRA2 FP6: was dedicated to 2JRA2 FP6: was dedicated to 2ndnd generation of AO instrument for 8- generation of AO instrument for 8-10 m class telescopes10 m class telescopesFP7: two needs for E-ELT AO WFS detectors identified:FP7: two needs for E-ELT AO WFS detectors identified:– LGS WFS detector: very large pixel format to sample spot elongation, LGS WFS detector: very large pixel format to sample spot elongation,

high frame rate (700 Hz), low noise (high frame rate (700 Hz), low noise (~1 e)~1 e)..– XAO WFS detector: for a pyramid WFS, 256XAO WFS detector: for a pyramid WFS, 25622 pixels are sufficient, but pixels are sufficient, but

extremely high frame rate (3 to 4 kHz) and very low noise (extremely high frame rate (3 to 4 kHz) and very low noise (~1 e)~1 e) are are required. required.

~ ~ 5.5 years development (2008-2013)5.5 years development (2008-2013)3.6 M€ eligible cost: clearly too much… De-scope to be done.3.6 M€ eligible cost: clearly too much… De-scope to be done.For the proposed activity: at least ~ 3 European countries For the proposed activity: at least ~ 3 European countries (Germany, Spain, France), 2 European institutions (ESO, IAC), ~ 3 (Germany, Spain, France), 2 European institutions (ESO, IAC), ~ 3 laboratories (INSU/CNRS), 2 industrial partners .laboratories (INSU/CNRS), 2 industrial partners .AO applications are strategic for E-ELT but this activity open to AO applications are strategic for E-ELT but this activity open to wider applications in the field of fast detectors.wider applications in the field of fast detectors.


ConclusionsConclusionsGreat succes of the JRA2 activity:Great succes of the JRA2 activity:– The CCD200 detector developed here by a European manufacturer (e2v UK) will The CCD200 detector developed here by a European manufacturer (e2v UK) will

be used by every AO system in Europe: ESO, IAC, GTC. And also probably in the be used by every AO system in Europe: ESO, IAC, GTC. And also probably in the US !US !

– The OCam test camera will be duplicated for a lot of European places: IAC, ESO, The OCam test camera will be duplicated for a lot of European places: IAC, ESO, GTCGTC

– Products of this JRA will be re-used in the European astronomical community: Products of this JRA will be re-used in the European astronomical community: OCam will help for ESO NGC development, OCam will be used as GTC wavefront OCam will help for ESO NGC development, OCam will be used as GTC wavefront sensor camerasensor camera

– Complete program of detector validation carried out by IAC on telescope, as Complete program of detector validation carried out by IAC on telescope, as foreseen at beginning of JRA2.foreseen at beginning of JRA2.

– Strong probability for a commercial transfer license of OCam to Andor Technlogy Strong probability for a commercial transfer license of OCam to Andor Technlogy (UK)(UK)

ExcellentExcellent partnership between the European partnership between the European laboratories/institutes/industry of the JRA2. Wish to continue during the laboratories/institutes/industry of the JRA2. Wish to continue during the FP7, same kind of applications in the framework of E-ELT development.FP7, same kind of applications in the framework of E-ELT development.


ENDENDMany Thanks for Many Thanks for

ListeningListening

Documents

10-11 Sept 2007 JRA2 - Opticon FP6 MTR 1 JRA2 Report “Fast Detector for AO” Opticon Mid-Term Review chairman: Philippe Feautrier – INSU/CNRS