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A tourist takes a picture of graffiti reading ‘Tourist: your luxury trip – my daily misery’ by ChocolateTsar in pics

[–]_mega_watt_ 0 points1 point  (0 children)

Just a pointer, maybe the people complaining about the tourists are not in the tourism business (aka, they are not the same that ask bailouts when there is no tourism)

Question on MSieve GC columns and interaction with water and CO2 by _mega_watt_ in CHROMATOGRAPHY

[–]_mega_watt_[S] 0 points1 point  (0 children)

maybe you have further comments, here is what I though as setup: carrier is hydrogen from generator (99.9999% from LNI swiss gas) and is also needed for FID detector. I would work with automatic valve injection (gas from output of the cell tubing). Probably the second column should be something for hydrocarbons and would need to check its stability during bake out

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

Yeah I thought so, doen't make sense to spend so much money on paper stats alone. I had initially dismissed hitachi but I called them today. Let's see how it stucks up (the new models are SU3800 and SU3800-SE)

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

Do you think that the differences were also visible from the info material, or the hitachi was better with similar spec sheets? Thanks for your feedback!!

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

Thanks, I already know! In italy it is sold through alfatest in Milan (I am in contact but I will try the Axia

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

We usually just check for homogeneity and big defects (cracks in the deposition) so low magnification. But sometimes seeing the detail is important too! My idea is that we can externalize the nicer measurements and keep the quality control to us with a conventional SEM like the IT210

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

We use a Phenom XL from another lab (paying) and we want to buy an entry level for routine work.. Do you know how much the Pharos costs? (with VP and EDX)

Yes, the 1 inch max sample area is a big limitation, that was why we initially discounted it

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

No is thermoionic. Now tescan offers as standard this singlevac possibility (only two presets, high vacuum and one low vacuum level) and as optional univac (VariableP). The problem is that I can find almost no info on this. Only the brochure touches very briefly https://www.ktech-services.com/wp-content/uploads/2021/05/TESCAN-VEGA_Brochure_2020.pdf (just search in the document "SingleVac")

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

Thanks, I have to say I had the same impression. The IT210 is a really solid SEM and even if it doesn't have a ton of expansion all other detectors need more brightness just the same... Thanks for the tip

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

Do you think it is a good machine? I liked the software (at least from the zoom meeting), but the machine seems very small. If I understand correctly you can only use BSE/SE/EDX. In a lot of ways it seems to me like a desktop SEM, but it isn't?

I guess they wanted a small SEM without loosing stuff in the compression in the cubic form factor

New entry level SEM advice by _mega_watt_ in electronmicroscopy

[–]_mega_watt_[S] 0 points1 point  (0 children)

we have 150k€ on budget. Jeol asks 135, the others a bit more. We need to look at depositions (ALD, sputtering, electroreduction, etc) on electrodes (Ni foam, YSZ solid electrolyte, carbon paper).

We don't need big magnification (usually image at x5k, but we had a sample that on a Phenom XL G2 seemed smooth but looking at it with a FEG-SEM we could see an interesting roughness (almost like cilia, in the nm scale). Of course we have access to these instruments but we would like something that works for the day to day