Automated microscopy for fission track dating — serving science since 1979
Resources

Anti-Vibration Solutions

At 1000× magnification, every footstep in the corridor shakes your image. Three proven ways to keep it still — from commercial dynamic tables to a granite slab on inner tubes.

Most laboratory floors move a surprising amount. FTD work takes place at 1000× — the maximum useful magnification for visible light — and that magnifies small vibrations along with the fission tracks, destroying the information automated counting depends on. Isolation is not optional; happily, it need not be expensive either.

Commercial

Halcyon dynamic tables

The Halcyon range of dynamic anti-vibration tables incorporates high-technology devices that adapt moment-by-moment to variations in external vibration — the premium option for problem floors. (Not supplied by Autoscan.)

Halcyon brochure (PDF, 848 KB)
Proven DIY

Dr Glasmacher's design

A highly effective table designed and built by Dr. Ulrich Glasmacher at Heidelberg University, who has generously shared his complete drawings with the FTD community. (Translated from German by M. Krochmal — any mistakes are his.)

See plans & photos
Simplest

Autoscan's granite base

A slab of granite on partly inflated wheelbarrow inner tubes. Genuinely. It works because a substantial mass on a sufficiently elastic base stays still by sheer inertia — at a fraction of commercial prices.

How to build it
Heidelberg University

Dr Glasmacher's anti-vibration table

Complete dimensioned drawings and photographs, available for the benefit of the FTD community. High-resolution versions are in the download library.

Dimensioned plan 1 of Dr Glasmacher's table
Plan 1 — click for high-res
Dimensioned plan 2 of Dr Glasmacher's table
Plan 2 — click for high-res
Dimensioned plan 3 of Dr Glasmacher's table
Plan 3 — click for high-res
Photo 1 of Dr Glasmacher's table
The finished table — photo 1
Photo 2 of Dr Glasmacher's table
Photo 2
Photo 3 of Dr Glasmacher's table
Photo 3
Built at our offices

The simple Autoscan base

Our own base consists of a slab of granite suspended on four to six partly inflated 8-inch wheelbarrow inner tubes. A substantial mass on an elastic base remains static through inertia — a very simple, very effective way to isolate the microscope from vibrations that become clearly perceptible at 1000×.

Two practical refinements from our build:

  • We drilled six holes in the slab so the right-angle inflation valves emerge through them — the tubes can be topped up in place whenever needed.
  • A circular "bull's-eye" spirit level lets you level the microscope in both horizontal axes simultaneously.

Download our dimensioned drawing (JPG, 44 KB).