Development of Diamond-Based X-ray Detection for High Flux Beamline Diagnostics

2009 ◽  
Vol 1203 ◽  
Author(s):  
Jen Bohon ◽  
John Smedley ◽  
Erik M. Muller ◽  
Jeffrey W. Keister

AbstractHigh quality single crystal and polycrystalline CVD diamond detectors with platinum contacts have been tested at the white beam X28C beamline at the National Synchrotron Light Source under high-flux conditions. The voltage dependence of these devices has been measured under DC and pulsed-bias conditions, establishing the presence or absence of photoconductive gain in each device. Linear response has been achieved over eleven orders of magnitude when combined with previous low flux studies. Temporal measurements with single crystal diamond detectors have resolved the ns scale pulse structure of the NSLS.

2011 ◽  
Vol 1282 ◽  
Author(s):  
Yukako Kato ◽  
Hitoshi Umezawa ◽  
Hirotaka Yamaguchi ◽  
Tokuyuki Teraji ◽  
Shin-ichi Shikata

ABSTRACTSemiconductor epitaxial CVD single crystal diamond is considered a potential material for power devices because of its unique characteristics. In the discussion on the relationship between crystal quality and device performance, the atomic purity and defect concentration have been considered; however, the information on the local stress-strain distribution in a single crystal is not sufficient. In this paper, the dislocation analysis is shown for the suggestion of the established standard dislocation analysis method. The aggregation of mixed dislocations is observed by the analysis by using the birefringence image, cathodoluminescence image and x-ray topography.


2017 ◽  
Vol 24 (6) ◽  
pp. 1113-1119 ◽  
Author(s):  
E. Nazaretski ◽  
H. Yan ◽  
K. Lauer ◽  
N. Bouet ◽  
X. Huang ◽  
...  

A hard X-ray scanning microscope installed at the Hard X-ray Nanoprobe beamline of the National Synchrotron Light Source II has been designed, constructed and commissioned. The microscope relies on a compact, high stiffness, low heat dissipation approach and utilizes two types of nanofocusing optics. It is capable of imaging with ∼15 nm × 15 nm spatial resolution using multilayer Laue lenses and 25 nm × 26 nm resolution using zone plates. Fluorescence, diffraction, absorption, differential phase contrast, ptychography and tomography are available as experimental techniques. The microscope is also equipped with a temperature regulation system which allows the temperature of a sample to be varied in the range between 90 K and 1000 K. The constructed instrument is open for general users and offers its capabilities to the material science, battery research and bioscience communities.


2013 ◽  
Vol 425 (21) ◽  
pp. 212001 ◽  
Author(s):  
M Di Fraia ◽  
M Antonelli ◽  
A Tallaire ◽  
J Achard ◽  
S Carrato ◽  
...  

2017 ◽  
Vol 24 (1) ◽  
pp. 103-109 ◽  
Author(s):  
Sergey Terentyev ◽  
Maxim Polikarpov ◽  
Irina Snigireva ◽  
Marco Di Michiel ◽  
Sergey Zholudev ◽  
...  

Linear parabolic diamond refractive lenses are presented, designed to withstand high thermal and radiation loads coming from upgraded accelerator X-ray sources. Lenses were manufactured by picosecond laser treatment of a high-quality single-crystal synthetic diamond. Twelve lenses with radius of curvature at parabola apex R = 200 µm, geometrical aperture A = 900 µm and length L = 1.5 mm were stacked as a compound refractive lens and tested at the ESRF ID06 beamline. A focal spot of size 2.2 µm and a gain of 20 were measured at 8 keV. The lens profile and surface quality were estimated by grating interferometry and X-ray radiography. In addition, the influence of X-ray glitches on the focusing properties of the compound refractive lens were studied.


2008 ◽  
Vol 602 (6) ◽  
pp. 1135-1140 ◽  
Author(s):  
D. Doneddu ◽  
O.J. Guy ◽  
P.R. Dunstan ◽  
T.G.G. Maffeis ◽  
K.S. Teng ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
A. Descamps ◽  
B. K. Ofori-Okai ◽  
K. Appel ◽  
V. Cerantola ◽  
A. Comley ◽  
...  

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