FIELD: electricity.;SUBSTANCE: intensity modulation of the X-ray beam is carried out by changing the reflection conditions of X-ray reflection from a piezoelectric single crystal under the conditions of applying an electric field to it. The said change of conditions of X-ray reflection is made ...
Monitoring of the x-ray beam intensity going through a collimator using a small ionization chamber.We describe a device which monitors the intensity of a collimated monochromatic x-ray beam. A small ionization chamber, mounted between the collimator and the sample, is connected to a current ...
The spatial intensity profile of an X-ray beam reflected by a crystal with microdefects in the Bragg case is considered. A practically pure diffuse component was measured at the tail of the intensity distribution. From these data, static Debye–Waller factors of nearly perfect silicon crystals we...
Ions extracted from a solid surface or plasma by impact of an high intensity and high current electron beam can partially neutralize the beam space charge and change the focusing system. We have investigated ion emission computationally and experimentally. By matching PIC simulation results with availa...
United States Patent US10466372 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text
used to transmit the spectrum from the spectrometer to be measured with photomultiplier tubes in this case. The line-to-continuum ratio is observed to decrease when an energetic proton beam is injected into the plasma(Fig. 6). An increase in electron temperature from 5 to 6eV is measured, ...
of the effective focal length (≈4.2 m) and therefore of the beam size in focus at the HCF entrance. The angles of incidence on the two mirrors can also be adjusted such that the astigmatism introduced by the first mirror is compensated by that introduced by the second mirror. To ...
obtained by dividing the foot-candles by 4 pi radians and measured in lumens. The number of lumens per square meter is calledlux. Lux is used to provide specifications for the low-light capabilities of a security camera. However, each manufacturer uses different configurations to achieve the bes...
A system comprising a novel combination of a multiple-channel monolithic capillary optic and an x-ray source with a spot size of less than 300 microns to produce a high intensity small diameter x-ray beam is described. A system of this invention can be easily adapted for use in the analysi...
This short communication presents a study of the use of an annular X-ray beam produced by an ellipsoidal single-bounce monocapillary (ESBC) to perform focal construct geometry (FCG) high-intensity angular-dispersive X-ray diffraction (ADXRD) in transmission mode. The ESBC optic effectively focused...