X-ray science: The big guns

the plain x-ray the diagnosis of the acute abdomen_

چکیده ندارد.

Photocathode Guns for Single Pass X-ray FELs

The present state of the art in photoinjector designs will be presented in this review. We will discuss both proposed and operational photoinjectors with operating frequencies from L-band (1.424 GHz) to X-band (11.424 GHz). Also a novel pulsed DC gun will be presented. All the RF photoinjector discussed here use an emittance compensation scheme [1] [2] to align the different slices of the the e...

Cryogenic X-ray detectors for synchrotron science.

Cryogenic detectors operated at temperatures below 1 K offer an order of magnitude higher energy resolution than conventional semiconductor-based energy-dispersive detectors, and orders of magnitude higher efficiency that grating spectrometers. Initially developed for astrophysics applications, these detectors are increasingly used in synchrotron-based research, both for detector characterizati...

Big science, little science.

In the USA, where I live and work, it is well known that I have little love for structural genomics—the attempt to determine the structures of most or all of the proteins in an organism by some combination of high-throughput X-ray crystallo graphy, nuclear magnetic resonance spectroscopy and homology modelling. My reasons are a matter of public record: structural genomics is based on an assumpt...

Big guns take aim at wide - bandgap sector