- Protect optics and mechanisms
- Minimize scattered and stray light
- Keep dust and dirt out
- Provide thermal protection to triplet
- Be light enough so one person can easily handle

- Baffles and covers for dewar end and grating end needed by early Nov.

- All covers to be removable
- Baffles allow access to dewar and optics when mounted on the telescope, to the extent possible.
- Access ports for daily access:

- Access ports for access once or twice per run:

- Covers for the above 4 items to be attached by captive thumb screws
All others: captive screws which require a screwdriver or other tool

- Cables will attach via connectors in the covers when possible to minimize light leaks

- Connectors must be located to facilitate

List of Cables:

A> CANNOT Go through a cover connector; need light tight hole:

1. Guide Camera Main Cable

B> CAN go through a cover connector:

1. Guide Camera Cooling

2. Guide Camera small cable

3. Science CCD fiber optics

4. Science CCD Main Cable

5. Science CCD shutter cable

6. Motor Cable- Guide Camera

7. Motor Cable Lens 1

8. Motor Cable Grating

9. Drive Cables Piezos

10. Motor Cable Flip Mirror

11. New Shutter control

12. Thorium Argon Power

13. Cal box power Cable (quartz/uv/fan)

14. Temptrax sensors (three lines)

15. Dry nitrogen purge line

Info from Dave Baxter on Connectors:

 through a bulkhead:                            MODEL #?

1.  Guide Camera Cooling Cole-Parmer  # K-06360-49 2 ea.
        # K--063060-74 2 ea.

2.  Guide Camera small cable MS3112E8-4P box mount connector Newark #
93F3382
MS3116F8-4S cable plug Newark # 93F3374

3.  Science CCD fiber optics I have a couple of feed through I can
give you or Jeff might have some.

4.  Science CCD Main Cable Burndy G6F20-30PNE for the cable
Burndy G2B20-30SNE for the box

5.  Science CCD shutter cable What type of connector?

shutter?

1. Baffle between telescope and spectrograph:

(a) construct circle to attach to black rings, with hole in center to let beam in

(b) cover for top of space frame at telescope beam entrance

(c) cone to attach to circle

(d) rubber or other flexible, light tight connector to couple (a) and (b)

Action Items:

Todd will find out if we really can attach (a) to bevel in rings,

Todd to find out optimum way to manufacture (a)

Michelle will calculate radius of hole in the middle of (a) and geometry of the cone