X-ray fluorescence microscopy of olfactory receptor neurons

Forensic applications of X-ray fluorescence microscopy

The development of highly efficient X-ray optics has allowed the development of bench-top XRF systems which have high intensity X-ray beams with diameters ranging from 10 micrometres through to a few millimetres. Coupled with integrated high magnification optical cameras, these systems are ideally suited to the needs of the forensic scientist. A microscopic particle from a crime scene can be an...

Inorganic Signatures of Physiology: The X-Ray Fluorescence Microscopy Revolution

X-ray deconvolution microscopy.

Recent advances in single-photon-counting detectors are enabling the development of novel approaches to reach micrometer-scale resolution in x-ray imaging. One example of such a technology are the MEDIPIX3RX-based detectors, such as the LAMBDA which can be operated with a small pixel size in combination with real-time on-chip charge-sharing correction. This characteristic results in a close to ...

Photoelectron X-ray Microscopy

The soft-X ray range, between 1-10 nm wavelength, is highly interesting for X-ray microscopy. Taking advantage of it requires, however, to operate a high resolution instrument at a variable wavelength. We describe here an image converter X-ray microscope which is based on secondary pharoemission. This instrument is now developped at the Institut dlOptique (Orsay); it will be installed near ACO ...

X-Ray Microscopy

Injuries were made in rabbit corneas 4-48 hours before tritium-labelled thymidine were injected. Only the injured cells picked up the thymidine. Injured lens cells of rats, rabbits and frogs incorporated thymidine within 14-16 hours with increasing numbers up to 32 hours. Cysteine which stops mitosis for four days, was definitely found to protect lens cells from radiation damage, particularly w...