Ask the Field Guide
Stuck on an image that won't sharpen, a sample that won't behave, an artifact you can't name? Write in. Questions get researched, answered, and — when they're the kind of question other operators will also have — published as short entries in the Notebook, anonymized, so the next person searching at 11pm finds an answer instead of a forum thread from 2009 that ends "nevermind, fixed it."
What to include
- The sample — material, roughly how it was prepped (mounted how, coated with what, or uncoated).
- The settings — kV, working distance, detector (SE/BSE), vacuum mode if you know it.
- What you see vs. what you expected — and attach an image if you can. A picture of the problem is worth three paragraphs about it.
How answers work
Every answer is researched against the literature and checked against real bench experience before it's published — and when a question stumps us, we say so and take it to operators who've seen more samples than we have, rather than guessing in print. Questions are published anonymized by default: no names, no affiliations, no identifying sample details. If your sample is proprietary, strip what you need to — a cropped detail image and a generic material description are usually enough to diagnose from.
Ground rules
This mailbox answers technique, imaging, and interpretation questions. It doesn't do purchasing consultations, vendor comparisons, or homework problems presented as mysteries (we can tell — the mystery always has exactly one unknown). And for prep involving genuinely hazardous chemistry — HF etching, beryllium-containing samples, radioactive material — expect an answer that points to your institution's safety office and the primary literature rather than a recipe; some instructions shouldn't come from a website.