jpcam & t80cam · 10 µm/pix pixel scale 0.23“/pix fov coverage ~5☐ 0 read out time 12s...
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JPCam & T80Cam:First light survey instruments for the
Javalambre Astrophysical ObservatoryKeith Taylor (IAG.ON), Jordi Cepa (IAC), A. Marín-Franch (CEFCA)
& J-PAS collaboration1Friday, March 30, 2012
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Team
Keith Taylor (IAG/ON) - PIJordi Cepa (IAC)
Antonio Marín-Franch (CEFCA)
T80Cam:Filter/Shutter Unit (INPE): Rene Laporte (optics, mechanics)José Angelo Neri (electronics, control)Mario Celso (systems engineering)
Camera Unit (Spectral Instruments):Kevin Toerne (Project Manager)Hans Meyer (electronics)Jim Cook (mechanics)Roger Cover (control)
JPCam:Filter/Shutter Unit (INPE+): Rene Laporte (INPE - optics) Mario Celso (INPE - systems/control) Fernando Santoro (MRO - mechanics)Lucas Marrara (TopCooler - mechanics)
Camera Unit (e2v):Ian Palmer (project manager)Paul Jorden (project over-sight)Graham Fenemore-Jones (mechanics)Mike Dryer (control)Matthew Clapp (electronics)
Actuator Unit (NTE-SENER):Joan Manel CasaltaAlbert TomásAlbert CatalanFrancesc Gallart
Interface management (AMOS)Grégory Lousberg (interface control)Olivier Pirnay (project manager)
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Outline
T80Cam@T80 ➠ J-PLUS Survey (Cenarro’s Talk)Filter/Shutter Unit
Camera Unit
JPCam@T250 ➠ J-PAS Survey (Benítez’s Talk)Filter/Shutter Unit
Camera Unit
Actuator Unit
Summary and schedule
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T80Cam@T80
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Camera
T80
Filter and shutter unit (FSU)
T80Cam breakdown
‣ Designed by CEFCA & Brazil‣ Manufactured in Brazil‣ Financed by Brazil
‣ Manufactured by Spectral Instruments (USA).‣ Financed by CEFCA
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T80Cam filter and shutter unit (FSU)
Succeed PDR early this week (March 27-28, 2012)
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T80Cam filter and shutter unit (FSU)
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T80Cam@T80: J-PLUS filters
J-PL
US
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T80Cam camera unit
Powered window
STA detector
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Grade one STA 1600 backside illuminated, 16 ports
T80Cam camera unit
FoV Ø=1.7º (full performance)Ø = 2.0º (reduced performance)
CCD format 10580 x 10580 pix, 9 µm/pix
Pixel scale 0.5 “/pix
Read out time <20sRead out noise <6 e-/pixel
∅2º
∅1.7º
95.22 mm
95.05 mm
STA CCD10Kx10K, 9µm pixels
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JPCam@T250
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JPCam@T250
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JPCam breakdown
actuatorunit
filter/shutter unit
camera unit
‣ Manufactured by e2v (UK).‣ Financed by Brazil
‣ Designed by CEFCA & Brazil‣ Manufactured in Brazil‣ Financed by Brazil
‣ Manufactured by NTE-SENER.‣ Financed by Brazil
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JPCam filter and shutter unit (FSU)
Shortest exposure time = 2msExposure accuracy = 1ms
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JPCam filter and shutter unit (FSU)
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CCD
windowfilters
JPCam@T250: J-PAS filters
J-PA
S
Challenging physical requirements(thickness, clear aperture...)
Challenging functional requirements(homogeneity, slope, out of band blocking, continuity...)
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JPCam camera unit
LN2 pipes
LN2 dewarRotary
coupling for LN2
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FoV Ø=3.0º (full performance)Ø = 3.1º (reduced performance)
CCD format 9216 x 9240 pix, 10 µm/pix
Pixel scale 0.22 “/pix
Read out time 12sRead out noise 6 e-/pixel
e2v CCD290-99 backside illuminated, 16 ports High QE
Low noise
JPCam camera unit
1.2Gpix
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JPCam camera unit
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JPCam camera unit
Flatness requirement: 40µm p-t-v surface flatness over the whole
focal plane
AG CCDs
WFS CCDs
Science CCDs9k x 9k
2k x 2k
1k x 1k
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4
-4
JPCam camera unit
WF reconstruction
Compute and apply: M2 hexapod motions
+Focal plane actuators motions
ComputeZernike
polynoms
Focal plane
Extra-focal image
Intra-focal image
Image quality control closed loop
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1.5
-1.5
WF reconstruction
Focal plane
Extra-focal image
Intra-focal image
JPCam camera unit
Image quality control closed loop
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JPCam actuator unit
Cryostat weight ~600Kg
Focus accuracy ±2 µm
Tilt accuracy ± 3”
Response time <2s
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Outline
T80Cam@T80Filter/Shutter Unit
Camera Unit
JPCam@T250Filter/Shutter Unit
Camera Unit
Actuator Unit
Summary and schedule
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Summary and schedule
JPCamJPCam
FoV Ø=3.0º (full performance)Ø = 3.1º (reduced performance)
Ø EE50 0.23’’ / 10 µm / 1 pix
Ø EE80 0.45” / 20 µm / 2 pix
CCD format (14 x) 9216 x 9240 pix10 µm/pix
Pixel scale 0.23“/pix
FoV coverage ~5☐ 0
Read out time 12s
Read out noise 6 e-/pixel
# of filters 2 intermediate/broad- + 54 narrow-band
T80CamT80CamFoV Ø=1.7º (full performance)
Ø = 2.0º (reduced performance)
Ø EE50 0.49’’ / 9 µm / 1 pix
Ø EE80 1.00 ” / 18 µm / 2 pix
CCD format 10580 x 10580 pix9 µm/pix
Pixel scale 0.5 “/pix
FoV coverage ~2☐ 0
Read out time <20s
Read out noise 6 e-/pixel
# of filters 6 intermediate/broad- + 6 narrow-band
Instrument Expected day 1T80Cam Beginning 2013JPCam Late 2014
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JPCam & T80Cam:First light survey instruments for the
Javalambre Astrophysical ObservatoryKeith Taylor (IAG.ON), Jordi Cepa (IAC), A. Marín-Franch (CEFCA)
& J-PAS collaboration26Friday, March 30, 2012