Laser-Produced Plasmas as an Alternative X-Ray Source for Synchrotron Radiation Research and for Microradiography

1979 ◽  
pp. 267-279 ◽  
Author(s):  
P. J. Mallozzi ◽  
H. M. Epstein ◽  
R. E. Schwerzel
Keyword(s):  
Synchrotron Radiation ◽  
X Ray ◽  
Radiation Research

Wiggler x‐ray beamlines at Synchrotron Radiation Research Center

1995 ◽  
Vol 66 (2) ◽  
pp. 1812-1814 ◽  
Author(s):  
K.‐L. Tsang ◽  
C.‐H. Lee ◽  
Y.‐C. Jean ◽  
T.‐E. Dann ◽  
J.‐R. Chen ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Research Center ◽  
X Ray ◽  
Radiation Research

scholarly journals Synchrotron Radiation Research and Analysis of the Particulate Matter in Deep Ice Cores: An Overview of the Technical Challenges

2019 ◽  
Vol 4 (3) ◽  
pp. 61 ◽  
Author(s):  
Giannantonio Cibin ◽  
Augusto Marcelli ◽  
Valter Maggi ◽  
Giovanni Baccolo ◽  
Dariush Hampai ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Ice Core ◽  
Ice Cores ◽  
Atmospheric Conditions ◽  
Airborne Dust ◽  
X Ray ◽  
History Of ◽  
X Ray Absorption ◽  
Radiation Research ◽  
Insight Into

Airborne dust extracted from deep ice core perforations can provide chemical and mineralogical insight into the history of the climate and atmospheric conditions, with unrivalled temporal resolution, time span and richness of information. The availability of material for research and the natural complexity of the particulate, however, pose significant challenges to analytical methods. We present the developments undertaken to optimize the experimental techniques, materials and protocols for synchrotron radiation-based analysis, in particular for the acquisition of combined Synchrotron Radiation X-Ray Fluorescence and X-ray Absorption Spectroscopy data.

New methods for semiconductor charge-diffusion-length measurements using synchrotron radiation

1998 ◽  
Vol 5 (3) ◽  
pp. 874-876 ◽  
Author(s):  
J. Kohagura ◽  
T. Cho ◽  
M. Hirata ◽  
T. Okamura ◽  
T. Tamano ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Three Dimensional ◽  
Semiconductor Detectors ◽  
Fusion Plasma ◽  
X Ray ◽  
New Methods ◽  
Research Fields ◽  
Diffusion Effects ◽  
Position Sensitive ◽  
Radiation Research

The extension of a new theory on the X-ray energy response of semiconductor detectors is carried out to characterize the X-ray response of a multichannel semiconductor detector fabricated on one silicon wafer. Recently, these multichannel detectors have been widely utilized for position-sensitive observations in various research fields, including synchrotron radiation research and fusion-plasma investigations. This article represents the verification of the physics essentials of a proposed theory on the X-ray response of semiconductor detectors. The three-dimensional charge-diffusion effects on the adjoining detector-channel signals are experimentally demonstrated at the Photon Factory for two types of multichannel detectors. These findings are conveniently applicable for measuring diffusion lengths for industrial requirements.

Measurement of Micro Residual Stresses Near the Grain Boundary in Copper Bicrystal

2010 ◽  
Vol 89-91 ◽  
pp. 515-520
Author(s):  
Ayumi Shiro ◽  
Hanabusa Takao ◽  
Tatsuya Okada ◽  
Nishida Masayuki ◽  
Kazuya Kusaka ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Grain Boundary ◽  
Residual Stresses ◽  
Kink Band ◽  
X Ray ◽  
Kink Bands ◽  
Crystal Orientations ◽  
Plastic Extension ◽  
Compressive Residual Stresses ◽  
Radiation Research

Residual stresses near the grain boundary of a bicrystal were measured by synchrotron radiation of SPring-8 at Japan Synchrotron Radiation Research Institute. A copper bicrystal specimen with a 90-degree tilt boundary was deformed 30% in tension. After the plastic extension, kink bands developed in a deformed matrix along the grain boundary. In this study, we focused on the residual stresses in the deformed matrix and the kink band. Residual stresses were evaluated by the X-ray single crystal measurement method. Stereographic projections were used to determine crystal orientations of deformed regions. Our observation showed that crystal orientations were different between the deformed matrix and the kink band. Residual stresses in the direction along the grain boundary in the deformed matrix and kink band were compressive. Residual stresses in the direction vertical to the grain boundary were seen opposite between the deformed matrix and the kink band.

A Prospect and Retrospect – the Japanese Case

1998 ◽  
Vol 5 (3) ◽  
pp. 140-146 ◽  
Author(s):  
Taizo Sasaki
Keyword(s):  
Synchrotron Radiation ◽  
Light Source ◽  
Research Area ◽  
Third Generation ◽  
Electron Synchrotron ◽  
New Era ◽  
X Ray ◽  
History Of ◽  
Technical Innovations ◽  
Radiation Research

The early through recent history of synchrotron radiation research in Japan, since the initial efforts in 1962, is reviewed. Following a period of parasitic use of an electron synchrotron, Japanese users attempted to build a storage ring as a dedicated soft X-ray source, which was completed in 1974. It opened up a new era of second-generation synchrotron radiation research. The Photon Factory, a dedicated X-ray source commissioned in 1982, provided a much wider research area as well as a number of technical innovations, among which insertion devices brought the further prospect of significant improvements in the properties of sources. As a consequence, the new concept of a light source oriented towards full exploitation of insertion devices, or the idea of a third-generation source, was created. The motivations and developments which led to Spring-8, a third-generation Japanese X-ray source that is currently being commissioned, will be reviewed briefly.

A high-performance double-crystal monochromator soft X-ray beamline

1998 ◽  
Vol 5 (3) ◽  
pp. 664-666 ◽  
Author(s):  
Tang-Eh Dann ◽  
Shih-Chun Chung ◽  
Liang-Jen Huang ◽  
Jwei-Ming Juang ◽  
Ching-Iue Chen ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
High Performance ◽  
Resolving Power ◽  
Research Projects ◽  
Photon Beams ◽  
Double Crystal ◽  
X Ray ◽  
Double Crystal Monochromator ◽  
Radiation Research ◽  
Super Alloy

A high-performance double-crystal-monochromator soft X-ray (DCMSX) beamline has been constructed at the Synchrotron Radiation Research Center (SRRC). This beamline delivers monochromatic photon beams with energies from 1 to 9 keV and a resolving power (E/ΔE) of up to 7000. This beamline provides users with an opportunity to study many important materials, such as high-Tc superconductors, magnetic materials, catalysts, super-alloy compounds etc. Excellent EXAFS and NEXFS spectra have been routinely obtained from this beamline. Several interesting research projects are currently being conducted at this beamline. All the results show that this beamline has been constructed to meet its design goals.

The commissioning of a flexible low-cost multipurpose X-ray beamline at SRRC

1998 ◽  
Vol 5 (3) ◽  
pp. 512-514 ◽  
Author(s):  
Chih-Hao Lee ◽  
Ching-Shiang Hwang ◽  
Poh-Kun Tseng ◽  
Huan-Chi Tseng ◽  
Kuan-Li Yu ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Low Cost ◽  
Energy Dispersive ◽  
Beam Irradiation ◽  
X Ray ◽  
X Ray Scattering ◽  
Research Institutes ◽  
Angle Scattering ◽  
Funding Support ◽  
Radiation Research

A low-cost multipurpose X-ray beamline has been commissioned at the bending magnet B15 of the Synchrotron Radiation Research Center (SRRC). The beamline is constructed in such a way to accommodate the various needs of small research consortia, from universities or research institutes, whose requirements of a beamline facility are quite diverse while under limited funding support. Flexibility is the special feature of this beamline. It is capable of performing quick test measurements without a prolonged reviewing process. Switching between different techniques, such as white-beam irradiation, EXAFS and X-ray scattering, can be achieved within 1 h. Novel experiments, such as energy-dispersive small-angle scattering experiments and energy-dispersive reflectivity measurements, can also be performed.

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