Self‐calibration of semiconductor photodiodes in the soft x‐ray region

1992 ◽  
Vol 63 (1) ◽  
pp. 797-801 ◽  
Author(s):  
M. Krumrey ◽  
E. Tegeler
Keyword(s):  
X Ray ◽  
Self Calibration

Patient positioning with X-ray detector self-calibration for image guided therapy

2011 ◽  
Vol 34 (3) ◽  
pp. 391-400 ◽  
Author(s):  
Boris Peter Selby ◽  
Georgios Sakas ◽  
Wolfgang-Dieter Groch ◽  
Uwe Stilla
Keyword(s):  
Patient Positioning ◽  
X Ray ◽  
Image Guided Therapy ◽  
Image Guided ◽  
Self Calibration ◽  
Guided Therapy

Self‐calibration of the same silicon photodiode in the visible and soft x‐ray ranges

1995 ◽  
Vol 66 (9) ◽  
pp. 4736-4737 ◽  
Author(s):  
M. Krumrey ◽  
E. Tegeler ◽  
R. Goebel ◽  
R. Köhler
Keyword(s):  
Silicon Photodiode ◽  
X Ray ◽  
Self Calibration

scholarly journals Iterative energy self-calibration of Fe XANES spectra

2020 ◽  
Vol 27 (1) ◽  
pp. 207-211 ◽  
Author(s):  
Michael W. M. Jones ◽  
Guilherme Mallmann ◽  
Jeremy L. Wykes ◽  
Joseph Knafelc ◽  
Scott E. Bryan ◽  
...  
Keyword(s):  
Oxidation State ◽  
Simultaneous Measurement ◽  
Energy Calibration ◽  
Spectral Features ◽  
Edge Structure ◽  
X Ray ◽  
Self Calibration ◽  
Two Measures ◽  
X Ray Absorption ◽  
Different Parts

Determining the oxidation state of Fe through parameterization of X-ray absorption near-edge structure (XANES) spectral features is highly dependent on accurate and repeatable energy calibration between spectra. Small errors in energy calibration can lead to vastly different interpretations. While simultaneous measurement of a reference foil is often undertaken on X-ray spectroscopy beamlines, other beamlines measure XANES spectra without a reference foil and therefore lack a method for correcting energy drift. Here a method is proposed that combines two measures of Fe oxidation state taken from different parts of the spectrum to iteratively correct for an unknown energy offset between spectra, showing successful iterative self-calibration not only during individual beam time but also across different beamlines.

PRECISION MEASUREMENT OF THE MOMENTA OF CONVERSION ELECTRON LINES FROM SOURCES OF 212Pb (ThB)

1965 ◽  
Vol 43 (2) ◽  
pp. 171-192 ◽  
Author(s):  
R. L. Graham ◽  
G. Murray ◽  
J. S. Geiger
Keyword(s):  
Least Squares ◽  
Precision Measurement ◽  
Conversion Electron ◽  
Internal Conversion ◽  
Calibration Method ◽  
Conversion Line ◽  
Fundamental Constants ◽  
X Ray ◽  
Self Calibration

Momentum ratios of some of the more intense internal conversion lines from sources of thorium radioactive deposit have been determined with accuracies of 1 to 4 parts in 105 using an iron-free β spectrometer. Accurate absolute values of the momenta were obtained from intercomparisons of these line momenta with that of the K-412 internal conversion line in 198Hg. The X-ray self-calibration method of Siegbahn is discussed in some detail and is shown to be less accurate at this time. The results are analyzed on both the 1955 and 1963 least-squares adjusted values of the fundamental constants.

scholarly journals Multi-pitch self-calibration measurement using a nano-accuracy surface profiler for X-ray mirror metrology

2020 ◽  
Vol 28 (16) ◽  
pp. 23060
Author(s):  
Lei Huang ◽  
Tianyi Wang ◽  
Josep Nicolas ◽  
François Polack ◽  
Chao Zuo ◽  
...  
Keyword(s):  
X Ray ◽  
Self Calibration ◽  
Calibration Measurement

Self-calibration of a stereo system using matched points: application to biplane x-ray imaging

1994 ◽  
Author(s):  
Farida Cheriet ◽  
Jean Meunier ◽  
Jacques Lesperance ◽  
Michel J. Bertrand
Keyword(s):  
X Ray ◽  
Self Calibration ◽  
X Ray Imaging
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