Developments with MagE
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Transcript of Developments with MagE
9/24/05 MagE Update SAC meeting
Developments with MagE
• Complete layout of Spectrograph structure and camera by B. Bigelow– Structure will be all anodized aluminum + bolts (like MIKE).
– Fabrication drawings exist for grating and prism assemblies, first mechanical pieces are being fabricated in MIT shop.
– All optics in hand, or to be delivered next month• Have coating quotes from OCLI, ZC&R and hybrid Sol-gel curves from CCI.
• Have contacted DRC metrigraphics to procure an “electroformed” slitmask.
• Working through design of mounting CCD on Si02 meniscus
– CCD repackaging on engineering grade e2V 42-20 did not deliver same characteristics as before removing wire bonds.
• Ian has details
• We’ll go with standard stock packaging for commissioning. (~7% hit in eff.)
– Converging on solutions to locate CCD mount on dewar window (Si02)
– Have arrived at initial designs to run cold finger, and electronics while minimizing obscuration in the beam.
9/24/05 MagE Update SAC meeting
(Old collimator assembly)
Calibration lamp system
Slitviewing system
Layout as of last SAC meeting
9/24/05 MagE Update SAC meeting
9/24/05 MagE Update SAC meeting
Optional handles added to prism cells to aid removal
9/24/05 MagE Update SAC meeting
Slit viewer in instrument
Note reliefs in mounting plate to clear optics and light path
9/24/05 MagE Update SAC meeting
Electroforming process by DRC, versus standard etching results.
Nickel-Cobalt is the standard electroplated metal.
9/24/05 MagE Update SAC meeting
Front, center, and rear barrel assemblies. New recessed rear cover.
9/24/05 MagE Update SAC meeting
Latest CCD mount design
9/24/05 MagE Update SAC meeting
Double Pass Prism
9/24/05 MagE Update SAC meeting
Single-Pass Prism
9/24/05 MagE Update SAC meeting
From Brent Gross, Cleveland Crystals
9/24/05 MagE Update SAC meeting
9/24/05 MagE Update SAC meeting
Developments with MagE
• Optics to be finished (with coatings) by end of ‘05
• Cable wrap with Igus chain to be better integrated with Aux port rotator
• Electronics and control can be PLC driven, with only 110V and ethernet needed into MagE electronics box.
• Plan to complete spectrograph and send to Carnegie in Summer ‘06
• Would be ready to ship to LCO at end of ‘06.