Low-absorption, multi-layered scintillating material for high resolution real-time X-ray beam analysis

2015 ◽  
Vol 3 (19) ◽  
pp. 4954-4959 ◽  
Author(s):  
Antonio Pereira ◽  
Thierry Martin ◽  
Mariana Levinta ◽  
Christophe Dujardin
Keyword(s):  
High Resolution ◽  
Real Time ◽  
High Speed ◽  
X Ray ◽  
Resolution Capability ◽  
Beam Analysis ◽  
Imaging Resolution

A novel multi-layered screen for X-ray beam analysis at high speed with a high imaging resolution capability. The route toward real-time beam corrections for synchrotron experiments is presented.

Electrical Probing and Surface Imaging of Deep Sub-Micron Integrated Circuits

1999 ◽  
Author(s):  
Kenneth Krieg ◽  
Richard Qi ◽  
Douglas Thomson ◽  
Greg Bridges
Keyword(s):  
High Resolution ◽  
Integrated Circuits ◽  
Real Time ◽  
High Speed ◽  
Time Signal ◽  
Surface Imaging ◽  
Atomic Force ◽  
Submicron Structures ◽  
High Resolution Images ◽  
Capacitive Loading

Abstract A contact probing system for surface imaging and real-time signal measurement of deep sub-micron integrated circuits is discussed. The probe fits on a standard probe-station and utilizes a conductive atomic force microscope tip to rapidly measure the surface topography and acquire real-time highfrequency signals from features as small as 0.18 micron. The micromachined probe structure minimizes parasitic coupling and the probe achieves a bandwidth greater than 3 GHz, with a capacitive loading of less than 120 fF. High-resolution images of submicron structures and waveforms acquired from high-speed devices are presented.

High-resolution real-time X-ray topography of dislocation generation in silicon

1982 ◽  
Vol 46 (6) ◽  
pp. 1009-1013 ◽  
Author(s):  
Shih-Lin Chang ◽  
Hans-Joachim Queisser ◽  
Helmut Baumgart ◽  
Werner Hagen ◽  
Werner Hartmann
Keyword(s):  
High Resolution ◽  
Real Time ◽  
Dislocation Generation ◽  
X Ray

A Real-Time Hard X-Ray Tomographic System Designed for HL-2A Fast Electron Bremsstrahlung Radiation

2020 ◽  
Author(s):  
Chen Yuan ◽  
Jun Wu
Keyword(s):  
Real Time ◽  
Fast Electron ◽  
High Speed ◽  
Lower Hybrid ◽  
Processing Unit ◽  
Bremsstrahlung Radiation ◽  
X Ray ◽  
The Real ◽  
Electron Bremsstrahlung ◽  
Plasma State

Abstract A real-time hard X-ray (HXR) tomographic system is designed for HL-2A tokamak, which is dedicated to the real-time tomography of fast electron bremsstrahlung radiation during the lower hybrid (LH) driven mode within the energy range of 20keV to 200keV. This system has realized the investigation of HXR energy from 12 different chords on the equatorial plane of the reaction region. The spatial and temporal resolutions of the system are 2cm and 10ms, separately. HXR detection is accomplished by a self-designed detector array, with a structure of 12 arc arranged cadmium telluride (CdTe) semiconductors and their corresponding collimators. The real-time HXR acquisition and processing is achieved by the main electronic system, which is comprised of a high speed analog-to-digital module and a high performance signal processing unit. Due to high HXR flux and the real-time demand in measurement, the HXR tomography is accomplished by several customized digital processing algorithms based on FPGA logic resources, such as the digital real-time spectrum measurement, the trapezoidal shaper, the pile up filter, and the baseline restorer, etc. This system has been proved to be qualified as a dependable platform of fast electron bremsstrahlung radiation research during LH mode on HL-2A, which provides indispensable parameters for plasma state during fusion reaction.

scholarly journals 4D imaging of sub-second dynamics in pore-scale processes using real time synchrotron x-ray tomography

2016 ◽  
Author(s):  
Katherine J. Dobson ◽  
Sophia B. Coban ◽  
Sam A. McDonald ◽  
Joanna Walsh ◽  
Robert Atwood ◽  
...  
Keyword(s):  
Real Time ◽  
High Frequency ◽  
High Speed ◽  
Motion Blur ◽  
Transport Processes ◽  
Fluid Distribution ◽  
Pore Scale ◽  
X Ray ◽  
Wide Range ◽  
In Situ Experiments

Abstract. A variable volume flow cell has been integrated with state-of-the-art ultra-high speed synchrotron x-ray tomography imaging. The combination allows the first real time (sub-second) capture of dynamic pore (micron) scale fluid transport processes in 4D (3D + time). With 3D data volumes acquired at up to 20 Hz, we perform in situ experiments that capture high frequency pore-scale dynamics in 5–25 mm diameter samples with voxel (3D equivalent of a pixel) resolution of 2.5 to 3.8 µm. The data are free from motion artefacts, can be spatially registered or collected in the same orientation making them suitable for detailed quantitative analysis of the dynamic fluid distribution pathways and processes. The method presented here are capable of capturing a wide range of high frequency non equilibrium pore-scale processed including wetting, dilution, mixing and reaction phenomena, without sacrificing significant spatial resolution. As well as fast streaming (continuous acquisition) at 20 Hz, it also allows larger-scale and longer term experimental runs to be sampled intermittently at lower frequency (time-lapse imaging); benefiting from fast image acquisition rates to prevent motion blur in highly dynamic systems. This marks a major technical breakthrough for quantification of high frequency pore scale processes: processes that are critical for developing and validating more accurate multiscale flow models through spatially and temporally heterogeneous pore networks.

X-ray Multiple-Beam Analysis in High-Resolution Diffractometry of III–V Heterostructures

1998 ◽  
Vol 31 (4) ◽  
pp. 570-573 ◽  
Author(s):  
D. Korytár ◽  
C. Ferrari ◽  
Z. Bochníček
Keyword(s):  
High Resolution ◽  
X Ray ◽  
Multiple Beam ◽  
Beam Analysis

Quasi-real-time telemedical checkup system for x-ray examination of UGI tract based on high-speed network

2000 ◽  
Author(s):  
Toshikazu Sakano ◽  
Takahiro Yamaguchi ◽  
Tatsuya Fujii ◽  
Akira Okumura ◽  
Isao Furukawa ◽  
...  
Keyword(s):  
Real Time ◽  
High Speed ◽  
X Ray ◽  
High Speed Network
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