General Practice and X Rays

General Practice and X-Rays

X-Rays in General Practice

Dedicated to Sir Benjamin Franklin, this book is intended tor the use of the general practitioner, the student and other non-experts in X-rays. It begins with a briet historical sketch, and an assurance that with reasonable care an X-rays apparatus is not difficult to keep in working order, and a refutation of the imputation that patients run any risk during radiography at the hands of a compet...

Subject headings: galaxies: general—galaxies: spiral—X-rays: general—X-rays: galaxies—X-rays: ISM

We present results from the analysis of deep ROSAT HRI and PSPC observations of the spiral galaxy M81. The inferred total (0.5–2 keV band) luminosity of M81 is ∼ 3×10 ergs s, excluding the contribution from identified interlopers found within the D25 ellipse. The nucleus of the galaxy alone accounts for about 65% of this luminosity. The rest is due to 26 other X-ray sources (contributing ∼ 10%)...

Comparison of clinical outcomes from chest X-rays of smokers and non-smokers in a general practice population.

The chest X-ray (CXR) is a quick and inexpensive radiological exam with judicious use of CXRs being a valuable tool in patient care, while unnecessary use increasing costs, adding to patient radiation exposure, and may be in conflict with standards of patient care 1 . Under EU Directive from 1997 on radiation protection, doctors are advised that there should be justification for every requested...

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...