IMACS: Inamori-Magellan Areal Camera and Spectrograph

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IMACSInamori-Magellan Areal Camera and
Spectrograph

• Magellan SAC Status Report
• 13-14 April 2002
• OCIW, Pasadena, Ca

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IMACS project team A. Dressler Pr.
Investigator B. Bigelow Instrument
Scientist B. Sutin, H. Epps Optical
des./eng. B. Bigelow, T. Hare S. Gunnels, G.
Luppino, R. Cleary Mechanical des. V.
Kowal, R. Storts, J. Castillo Mechanical fab. A.
Bagish, D. Carr, J. Asa Electronics G.
Burley, I. Thompson, J. Estrada Detector
systems C. Birk, K. Clardy Software eng.
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Optics Status Collimator C01 (Field lens)
Done, ready to mount in cell C02 - C05 Done,
mounted in structure Long Camera L01
Done, mounted in cell L02/L03/L04 Lenses
done, will be re-mounted in cells L05,
L06 Done, mounted in cells Long camera should
be fully assembled by end of April 2002
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Optics Status cont. Short Camera S01, S08
(aspheres) At Tinsley, due 6/02 S07 At TORC,
due end of April? S02-S09 Ready to be coated
at STF Filters 2 sets of CTIO
B,V,I, Done 2 sets of CTIO R Due end of April
02 CTIO U (LCAM) Awaits ADC coating
results Sloan u, g, r, i, z Not ordered
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Current grating selection
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Optics Status cont. Grisms 200
l/mm Undersized matl re-ordered 300
l/mm Material due in August 600
l/mm Material due in May Imaging
Mirror Mirror is being re-coated followin
g failure of over-coated silver.
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Mechanical Engineering Status Guide camera
stages (Hare) Done, mods. IP Mask server
(Bigelow) Done, on structure Field Lens
(Hare) Ready for mounting LCAM shutter
(Hare) Done, ready to install Filter servers
(Bond) Done, ready to install Disperser
server (Hare) Assy. IP, drive remaining Gratin
g cells Assy. IP Grism cells Designed,
ready for draft. Mirror cell Done
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Mechanical Engineering cont. Collimator mech.
(Bigelow) Done, installed Long camera mech.
(Bigelow) Final Assy. in April Short camera
mech. (Bigelow) Done, ready for optics Dewar
(Luppino) Done, ready for CCDs Instrument
Structure (Gunnels) Done, installed Instrument
Carriage (Gunnels) Done, minor mods.
IP Instrument Enclosures (Gunnels) Design IP
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Center-field guide camera assembled and tested
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Long camera with shutter, FS, and dewar mounted
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Electronic Engineering Alan Bagish (OCIW) is
completing the electronics design for IMACS. Joe
Asa is providing final assembly services on a
consulting basis. Status of electronics Schemati
cs design (all motion stages) Done (4) Motion
control (MC) chassis, Done (1) Power supply
chassis, Done (1) Shutter control
chassis Done (2) Electronics racks for
chassis IP Instr. wiring harnesses IP
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Detector systems Guide cameras - 23
cameras have been fabricated - IMACS currently
has one of three needed - Remainder by May
02? Science array - Detector array (8
CCDs) has been flattened to 7.5 microns -
Individual detectors flat to 13 microns - Dewar
and detector system mechanics done - Cold test
of array in May
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Software Guiding (Clardy) - Guider position
control GUI Done - Guider position graphical
display Done - Interface to telescope
control
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Slit Mask Cutting (Clardy) - Mask Generation
(MG) inputs - images, data files,
other output - text file with targets, names,
etc. - Mask Definition (MD) Done -
inputs - text file from MG, other text files -
output - mask definition file - database for
observing, data reduction - Mask Fabrication
(MF) Done - inputs - mask definition
file - output - test, laser G-code, mill
G-code, .ps files
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Software Instrument Control (Birk) Individual
module testing Module GUI status H/W
tests Pr. Guider done 75 SH
guider done 75 CF guider done 90 Slit
Mask Server done 75 Disperser
Server 25 0 Long Camera Focus done 90 Fil
ter Servers (2) done 90 Flexure
Control done 75 Detector Focus 25 0 HP
Sensor System done 50
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Software Instrument Control cont. Integrated
instrument testing - One GUI at this level,
showing all critical aspects of each module
(encoder positions, limit status, temperatures,
etc). - This GUI is written and 75 tested,
unfinished stages remain (Disperser Server,
Grating tilts, detect. focus) User Level
Software - Two GUIs at this level - Instr.
control interface (select a grating, etc.) - 50
done - Graphical Instr. Status Display - 25 done
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Filter server GUI
SH guider GUI
Examples of individual stage test GUIs
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Engineering GUI, shows status of all stage
functions and sensors, operates in parallel for
all modules.
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User/Observer instrument control GUI
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Graphics-based instrument GUI
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Software Science Array Control (Birk) Shutter
control - micro-controller for linear
motors 90 done CCD readout / camera control -
ccdserver for array readout - camgui for
user interface - both are functional 75
done Quick-Look Tool - functional with
simulated data 90 done
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Detector GUI
Quick-look tool
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Slit Masks Laser system - Convergent
Gemini 150 W. CO2 laser cutting system -
Ordered November 7, 2001 - 280K - Acceptance
testing completed March 18-22, 2002 - Currently
in shipment to Chile - Due at LCO May 1, 2002
ASB Facility - 200A electrical service
required - Air compressor delivered,
installation required - Ventilation, fire, and
fume extraction systems still required
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Slit Masks Slit mask blanks -
Fabricated by California Hydroforming - Current
order of 100 mask blanks in progress - Order of
1000 parts to follow first delivery Mask
cost - Estimated to about 100 per mask,
including laser (500 masks/year for 10 years)
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Coming up - First light through optics - end
of April - Grating tilt mechanism assembly and
testing - flexure - Cold testing of CCD array -
May - Instrument enclosures - August - All
short camera optics coated - September