Localization by X Rays and Stereoscopy

Landmarking and feature localization in spine x-rays

The general problem of developing algorithms for the automated or computer-assisted indexing of images by structural contents is a significant research challenge. This is particularly so in the case of biomedical images, where the structures of interest are commonly irregular, overlapping, and partially occluded. Examples are the images created by digitizing film x-rays of the human cervical an...

Chemical Analysis by X-Rays

High Resolution In-Vivo Electrode Localization Using Microfocal X-Rays

Neuroscientists lack the ability to perform in-vivo electrode localization with high accuracy, especially in deep brain structures. The design, implementation and testing of a microfocal x-ray stereo system that offers an efficient, accurate, and relatively low-cost solution this localization problem is presented. The results indicate the ability to localize a targets to within ~50 microns, in ...

Triboluminescence and X-Rays

Triboluminescence is shown to produce X-rays from the nanoparticles (NPs) that form as the sticky acrylic adhesive of Scotch tape is peeled from the polyethylene (PE) roll in a vacuum. Prior to peeling, atoms in the adhesive are not under electromagnetic (EM) confinement and have full thermal kT energy. But upon peeling, the atoms in NPs that form in the gap between adhesive and PE are under EM...

The Inactivation of Trypsin by X-rays

1. The inactivating effect of soft x-rays on trypsin in solutions of various degrees of concentration has been studied. 2. It has been found to run parallel with spontaneous heat inactivation. It is almost, if not entirely, confined to the free or active trypsin. 3. Under radiation of constant intensity, the inactivation follows the simple exponential law which indicates a monomolecular reactio...