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Hi, I am a newcomer interested in that stuff. I would have been interesred to know if I could directly after that aluminize thz mirror or I will have something to do ? Charles Rydel

Hi Vladimir, Thank's a lot! These results are good enough! I guess I stay at these IS parameters, because it works well. Best Regards Attila Schné

Hi Attila, The refraction index txt file is attached. Yes, It looks like your ion source works well because the TiO2 refraction index is high enough, congratulations! It is very hard to give any

Hi Vladimir, Thank you very much indeed! Well I did not find the attached txt.file. So what is the refractive index you calculated? Well the thickness is could be real, because of the uniformity mask

Hi Attila, Please see attached files. The picture shows your data and spectra I've designed for TiO2 film with Thk = 115.8 nm, deposited on one side of BK7 glass 3 mm thickness. Calculated TiO2

Thanks all for the reply. It was the "box" that James Lerch made that got me thinking on the square part plus it was home made.The 400 pounds does present a challenge,but was thinking of a side door

Dear James Nice vacuum box for coatings. Can let me know about the plasma cleaning. I have got the round vacuum chamber bought from the trash store. I do not have the plasma cleaning systen in it. Can

A 22"x22"x22" cube with 1/2" thick walls will be pretty heavy. I figure it at about 400 pounds. Do you have a hoist to move it around? -------- Paul Anderson -- VE3HOP

That is James Lerch's box. It is really sweet actually. It is very stout so no need for support webbing. James you out there still ??? You doing mirrors or just playing with the helo's ??? Drew in

Hoop stress varies dramatically with diameter, so your thickness will depend in large part on the size of your chamber. This page may be informative: http://www.eng-tips.com/viewthread.cfm?qid=288689

heres a square chamber by James Lerch http://www.youtube.com/watch?v=G2FhHuFrZrQ&lr=1

You can go thinner if you stitch weld some vertical supports across the flats. say 1/4" wall with 1/4" thk x 1" wide support ribs perpendicular to he flat surfaces. You are just trying to resist the

Square chamber with diameter????? Well, anyway, if it is cylindrical chamber 1/2" SS should be OK. If it is square/cube chamber, 1/2" also should be OK but I would make stiffening plates on plane

Was wondering what an acceptable thickness - in steel- would be for a square welded chamber 22 inches in diameter? !/2 inch steel sound OK?? This is to coat mirrors with. Read the archives about a

Hi Vladimir, Here are the datas I have: The deposition rate was 2 Angstr?m/sec, I deposited 150nm of TIO2 at least the quartz monitor showed that. That was an Ion beam assisted deposition. Substrate

Hi Attila, Actually you have two unknown parameters - film thickness and refractive index dispersion, so it is not easy to find thickness exactly just from R or T spectra without some special

Hello, Does anybody have the ability to calculate the TIO2 thin film layer thickness and refractive index, form spectrometer measurement datas? I attached a folder and files to the files section.

Hi! Thank's for the answers. Well I am going to try the tape. I hope the mirrors won't fly away! BR. Attila Schné

Hi Attila, We always use double sided Kapton tape to hold small parts if there are some troubles with rails or to protect pre-coated sides if necessary. It works fine in vacuum at heater temperature

I would use two parallel bars of steel or aluminum that you connect with long bots nuts and washers. The mirrors go between them, sideways of course. Guy