Abstract The energy-resolving performance of a synchrotron radiation monochromator can be characterised by measuring the fluorescence response gas in scans across characteristic absorption lines. Here, we describe method using exceptionally narrow features soft x-ray range. belong to helium-like ions and examples transition 1s → 2p O 6+ Ne 8+ are shown. We instrument PolarX-EBIT show typical da...

A bent Laue double-crystal monochromator system has been designed for vertically expanding the X-ray beam at the Canadian Light Source's BioMedical Imaging and Therapy beamlines. Expansion by a factor of 12 has been achieved without deteriorating the transverse coherence of the beam, allowing phase-based imaging techniques to be performed with high flux and a large field of view. However, preli...

Fig. I Lomb i incidenco incidenc irchers in the behavioral and visual sciences The upper panel of Figure 1 shows the output of a tly need a source of monochromatic light whose Bausch and Lomb 641-nm interference filter at five Lgth can be varied. The purpose of this note is different angles of incidence. The peak wavelength of ribe principles and construction of a reliable the distribution move...

Supplementary data 367.1903.3683.DC1.html http://rsta.royalsocietypublishing.org/content/suppl/2009/08/11/ "Audio Supplement" References l.html#ref-list-1 http://rsta.royalsocietypublishing.org/content/367/1903/3683.ful This article cites 33 articles, 3 of which can be accessed free Rapid response 1903/3683 http://rsta.royalsocietypublishing.org/letters/submit/roypta;367/ Respond to this articl...

A simple multiwavelength emission instrument utilizing a commercial grating monochromator, a fiber optic sensor to collect radiation from an acetylene-air flame, and a CCD detector, has been evaluated for pedagogical value in the undergraduate curriculum. Simultaneous determination of Na, Li, K, Rb at ppb level, and Ca, Sr, Ba at ppm level was achieved. The instrument is affordable, yet suitabl...

Single-order diffraction gratings with quasi-random structures are effective optical elements in suppressing harmonics contamination. However, background intensity fluctuations introduced by may affect the measurement of spectra and lack quantitative description. A unified theoretical method is provided to describe arbitrary distribution functions an number microstructures. The effect microstru...