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CCD testing Status and plans Juan Estrada – Fermilab 2/24/2005

CCD testing Status and plans Juan Estrada – Fermilab 2/24/2005. Equipment that we got since last report CCD readout Components selected for optical testing Plans. New Equipment. Lakeshore temperature controller

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CCD testing Status and plans Juan Estrada – Fermilab 2/24/2005

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  1. CCD testingStatus and plansJuan Estrada – Fermilab 2/24/2005 Equipment that we got since last report CCD readout Components selected for optical testing Plans

  2. New Equipment • Lakeshore temperature controller It will allow for temperature control of two channels inside the dewar, it is compatible with the temperature sensors that W. Wester got from lakeshore. As soon as we get the dewar (it is now being cleaned at fermilab) we will install the temp sensors and start studying how to cool it down and control it. • PC for controlling testing station This computer also has the right slot for installing T. Droege memory card (using in his DAQ system). W. Merrit has joined us, and will help us setting up this machine.

  3. Testing station Nitrogen IN Cold box Pulser (LED) Nitrogen OUT Connection to chiller Temperature monitor

  4. Testing Station LED CCD shield

  5. Testing station CCD board Spring loaded } Thermoelectric coolers CCD adapter Connection to chiller

  6. Testing Station power To TD board Video out

  7. Horizontal clocks to the CCD Reset move charge quiet int ref SW int sgn

  8. How does it really look RESET SW ref signal Video out + - Sample (ADC) After integration

  9. LED ON RESET SW ref signal Video out - + Sample (ADC) After integration

  10. Fits Image mmm… This part is not really finished, I need to sit down with TD to make sure that I understand how I am supossed to stop the CCD scan (vertical clocks). Hopefully TD will come to our testing area after the meeting to help with this.

  11. Plans • Since our testing station is getting larger, and we have strict environmental restrictions to safely handle the CCD, we have decided not to move to LAB6. We will instead move directly to SiDet. For this we need to get our own optical instruments (see next slides). • The dewar is almost ready, and we will like to use it with the picture framed CCDs. We met last week to start planning for this, a new board (very simple one) and a way to mount it in the dewar are needed. T. Shaw and G. Derylo are working on this. See document by G. Derylo.

  12. Optical Instruments For many months we have said that we needed to buy optical instruments for our testing station. We have to do it very soon, we have a good idea of what we want. A document with the proposed equipment has been circulated this week in a small group, after some discussions with V. Scarpine, this is our proposal. (2 items are still under discussion)

  13. Optical Instruments mono Integrating sphere Fast shutter Broad band light source Light sealed enclosure (built here?) Manual shutter dewar

  14. Optical Instruments(in the order we need them) • Integrating Sphere (ORIEL 70451): 1554 Electronic Shutter (ORIEL 71455): 550 • Calibrated photodiode (ORIEL 71638): 296 Optical Power Meter (ORIEL 70310): 2306 • Monochromator + broadband illiminator Xe lamp (ORIEL 60064): 4676 (waiting quote for a halogen lamp) 3.1 Monchromator 1 nm bandwidth (ORIEL 74000, 74022, 77222 and 77294): 4805 3.2 Motorized filter wheel, 6 positions, 10nm bandwidth (ORIEL 74040 and 53820): 1777 3.3 Manual filter wheel, 8 positions, 10nm bandwidth (ORIEL 77368): 1434

  15. Optical Instruments We propose getting the motorized filter wheel. If we later decide that we want and more detailed QE curve, we can get the monochromator. The filter wheel will be very useful for other things: • Holding neutral density filters to have another handle in the illumination intensity. • Mounting sloan-like filters A motorized filter wheel will allow us to run tests with less human intervention, which means less mistakes and more efficient use of the time. We also need a GPIB interface and a TTL signal generator, we can probably find those in the lab.

  16. Conclusion • Progress has been made in the readout of the CCD thanks to a lot of people involved (M. Watson, T. Shaw, M. Kozlovsky, W. Wester, T. Diehl, T. Droege, A. Dyer, M. Ruschman, D. Allpach, V. Scarpine) • We will move to SiDet as soon as we start getting the optical equipment, and we should be in coditions there to run with the picture frame CCD in the dewar using T. Droege system. T. Diehl is working on getting the SiDet room ready for the move.

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