Application of Imaging Plate for X-Ray Diffractometry

1991 ◽  
Vol 35 (A) ◽  
pp. 407-413 ◽  
Author(s):  
Atsushi Shibata ◽  
Katsunari Sasaki ◽  
Takao Kinefuchi
Keyword(s):  
Structure Analysis ◽  
Dynamic Range ◽  
Imaging System ◽  
High Sensitivity ◽  
Effective Area ◽  
Superior Performance ◽  
Imaging Plate ◽  
X Ray ◽  
X Ray Imaging ◽  
Electric Device

AbstractThe Fuji Imaging Plate (IP) is a 2-dimensional detector in which a latent X-ray image is stored as a distribution of color centers on a photostimulable phosphor (BaFBr:Eu2+) screen. It has a large effective area, wide dynamic range and high sensitivity. Thus it has been widely used not only in medical but also in scientific and industrial fields. Particularly in X-ray structure analysis, mainly of proteins, it has been used extensively and achieved good results.On the other hand, few applications have been reported in the field except for structure analysis, in spite of the superior performance of the IP which will give significant advantages in various measurements which have been done using an X-ray film such as electric device and fiber specimen.Therefore we report here the basic performance of R-AXIS II(Rigaku Automated X-Ray Imaging System II), an IP reader made by Rigaku, and some applications of X-ray diffraction measurements using IP.

Development of imaging plate for a TEM and its characteristics

1989 ◽  
Vol 47 ◽  
pp. 100-101
Author(s):  
N. Mori ◽  
T. Oikawa ◽  
Y. Harada ◽  
J. Miyahara ◽  
T. Matsuo
Keyword(s):  
Dynamic Range ◽  
Protective Layer ◽  
High Sensitivity ◽  
Imaging Plate ◽  
Phosphor Layer ◽  
Imaging Device ◽  
X Ray Imaging ◽  
New Type ◽  
Basic Characteristics ◽  
Reading System

The Imaging Plate (IP) is a new type imaging device, which was developed for diagnostic x ray imaging. We have reported that usage of the IP for a TEM has many merits; those are high sensitivity, wide dynamic range, and good linearity. However in the previous report the reading system was prototype drum-type-scanner, and IP was also experimentally made, which phosphor layer was 50μm thick with no protective layer. So special care was needed to handle them, and they were used only to make sure the basic characteristics. In this article we report the result of newly developed reading, printing system and high resolution IP for practical use. We mainly discuss the characteristics of the IP here. (Precise performance concerned with the reader and other system are reported in the other article.)Fig.1 shows the schematic cross section of the IP. The IP consists of three parts; protective layer, phosphor layer and support.

scholarly journals Performance assessment of imaging plates for the JHR transfer Neutron Imaging System

2018 ◽  
Vol 170 ◽  
pp. 04021
Author(s):  
E. Simon ◽  
P. Guimbal
Keyword(s):  
Performance Assessment ◽  
Dynamic Range ◽  
Imaging System ◽  
Computed Radiography ◽  
High Sensitivity ◽  
High Dynamic Range ◽  
Neutron Imaging ◽  
Imaging Plate ◽  
Intimate Contact ◽  
Imaging Plates

The underwater Neutron Imaging System to be installed in the Jules Horowitz Reactor (JHR-NIS) is based on a transfer method using a neutron activated beta-emitter like Dysprosium. The information stored in the converter is to be offline transferred on a specific imaging system, still to be defined. Solutions are currently under investigation for the JHR-NIS in order to anticipate the disappearance of radiographic films commonly used in these applications. We report here the performance assessment of Computed Radiography imagers (Imaging Plates) performed at LLB/Orphée (CEA Saclay). Several imaging plate types are studied, in one hand in the configuration involving an intimate contact with an activated dysprosium foil converter: Fuji BAS-TR, Fuji UR-1 and Carestream Flex XL Blue imaging plates, and in the other hand by using a prototypal imaging plate doped with dysprosium and thus not needing any contact with a separate converter foil. The results for these imaging plates are compared with those obtained with gadolinium doped imaging plate used in direct neutron imaging (Fuji BAS-ND). The detection performances of the different imagers are compared regarding resolution and noise. The many advantages of using imaging plates over radiographic films (high sensitivity, linear response, high dynamic range) could palliate its lower intrinsic resolution.

Direct Observation of Diffraction Arcs from Nanoscale Precipitates in Steels by Highly Brilliant and Focused Synchrotron Radiation Beam and Imaging Plate

1994 ◽  
Vol 332 ◽  
Author(s):  
Yasuo Takagi ◽  
Yoshitaka Okitsu ◽  
Toshiyasu Ukena
Keyword(s):  
Synchrotron Radiation ◽  
Direct Observation ◽  
Dynamic Range ◽  
High Sensitivity ◽  
Imaging Plate ◽  
Synchrotron Radiation Beam ◽  
Radiation Beam ◽  
X Ray ◽  
The Matrix ◽  
First Time

ABSTRACTDirect observation of diffraction arcs by X-ray from nanoscale precipitates in steels has become possible for the first time by using a highly brilliant and focused synchrotron radiation beam at BL3A of Photon Factory, and also by using an “imaging plate”, a two dimensional X-ray detector which has a wide dynamic range and high sensitivity. For examples, most of the diffraction arcs from ε-Cu precipitates (∼200 Å in diameter and ∼1 at. % in concentration) in Cu-added steels were observed. The method can apply to nondestructive and in-situ observation of creation and growth processes of the precipitates which has close relationships to various physical properties of the matrix steels.

scholarly journals First result of large size Scintillating Glass GEM imager

2018 ◽  
Vol 174 ◽  
pp. 02003
Author(s):  
Takeshi Fujiwara ◽  
Yuki Mitsuya ◽  
Hiroyuki Takahashi ◽  
Hiroyuki Toyokawa
Keyword(s):  
Imaging System ◽  
Ccd Camera ◽  
Effective Area ◽  
X Rays ◽  
X Ray ◽  
Electron Multiplication ◽  
Multiplication Process ◽  
Large Size ◽  
X Ray Imaging ◽  
Gas Molecules

A large size x-ray imaging gaseous detector, which has 280 × 280 mm2 effective area has been successfully developed and x-ray imaging has been demonstrated. The imaging system consists of a chamber filled with Ne/CF4 scintillating gas mixture, inside of which Glass GEM (G-GEM) is mounted for gas multiplication. In this system electrons are generated by the reaction between x-rays and the gas, and visible photons by excited Ne/CF4 gas molecules during the gas electron multiplication process in the G-GEM holes. These photons are simply detected with CCD-camera and a radiograph is formed. Here, we report on the properties of large size scintillation G-GEM and the results of using it as a digital x-ray imager with a large sensitive area.

Application of Imaging Plate for Polymer Analysis

1992 ◽  
Vol 36 ◽  
pp. 387-396
Author(s):  
Katsunari Sasaki ◽  
Kohji Kakefuda ◽  
Kenji Masuda ◽  
Ging-Ho Hsiue ◽  
Chain-Shu Hsu
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
Single Crystal Structure ◽  
Superior Performance ◽  
Imaging Plate ◽  
Axis Ii ◽  
X Ray ◽  
Single Crystal Structure Analysis

AbstractThe Fuji Imaging Plate (IP) is a 2-Dimensional X-ray detector on which a latent X-ray image is stored as a distribution of color centers in a photo-stimulable phosphor(BaFBr:Eu) screen. It has excellent characteristics such as a wide dynamic range of five or more digits and an order of magnitude higher sensitivity than X-ray film. Thus it has been actively used in the field of X-ray single crystal structure analysis.For polymer studies, 2-D information is useful to analyse a sample's orientation or periodic structure, and some system such as 2-D position sensitive detector (PSD) are widely used. But in spite of the superior performance of the IP which will give significant advantages in various measurements, few applications have been reported in this field, because most conventional IP based systems are specialized for the single crystal structure analysis,Therefore we developed the R-AXIS II D (Rigaku Automated X-ray Imaging System II D), an IP reader for general X-ray diffractometry which has a removable IP in order for exposure with external X-ray optics, and software which converts 2-D data to conventional 2theta-intensity or beta-intensity data for analysis of crystallinity or orientation. In this paper, we report the performance of R-AXIS II D and its applications to polymer studies and thin film analyses.

Method for Reduction of Quantum Noise Recorded on Imaging Plate at Low Dosage

1990 ◽  
Vol 48 (1) ◽  
pp. 474-475
Author(s):  
Arira Ishikawa ◽  
Hitoshi Suda ◽  
Akira Fukami ◽  
Tetsuo Oikawa ◽  
Yoshihiro Arai
Keyword(s):  
Quantum Noise ◽  
Dynamic Range ◽  
High Sensitivity ◽  
Imaging Plate ◽  
Recording Media ◽  
Phosphor Layer ◽  
X Ray ◽  
Transmission Electron ◽  
Photostimulable Phosphor ◽  
Low Dosage

To record radiation sensitive specimens at low dosage, a recording media with high sensitivity is required. Conventionally, some x-ray films have been used for this purpose. According to our experiences, however, its own granular noise is so severe that the practical sensitivity is restricted to the order of 10-13 C/cm2. The imaging plate (IP), recently developed for a transmission electron microscope, is a promising recording media, as it has a wide dynamic range, good linearity and high sensitivity of the order of 1×10-14 C/cm2 for the electron beam. The grain size of photostimulable phosphor, which composes the phosphor layer in the IP, is about 5 μm. As image recorded in the IP is read out as the digital image with the pixel size of 50 μm, the granularity of the IP can be negligible. The increase of the quantum noise, due to the fluctuation of the number of electrons per each pixel, at the low dosage will restrict the practical sensitivity of the IP. In order to raise this sensitivity, we applied the filtering technique which was developed for reduction of the granular noise of high sensitive x-ray film.

Evaluation of a photon counting X-ray imaging system

2002 ◽  
Author(s):  
M. Lundqvist ◽  
B. Cederstrom ◽  
V. Chmill ◽  
M. Danielsson ◽  
B. Hasegawa
Keyword(s):  
Imaging System ◽  
Photon Counting ◽  
X Ray ◽  
X Ray Imaging
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