[16] X-Ray storage-phosphor imaging-plate detectors: High-sensitivity X-ray area detector

1997 ◽  
pp. 233-243 ◽  
Author(s):  
Yoshiyuki Amemiya
Keyword(s):  
High Sensitivity ◽  
Imaging Plate ◽  
Storage Phosphor ◽  
X Ray ◽  
Area Detector

Rapid small-angle X-ray diffraction of a tonically contracting molluscan smooth muscle recorded with imaging plates

1989 ◽  
Vol 22 (1) ◽  
pp. 72-74 ◽  
Author(s):  
Y. Tajima ◽  
K. Okada ◽  
O. Yoshida ◽  
T. Seto ◽  
Y. Amemiya
Keyword(s):  
Small Angle ◽  
Structural Changes ◽  
High Sensitivity ◽  
Imaging Plate ◽  
Layer Line ◽  
X Ray Diffraction ◽  
Thin Filaments ◽  
X Ray ◽  
Area Detector ◽  
Diffraction Patterns

Small-angle X-ray diffraction patterns from the anterior byssus retractor muscles of Mytilus edulis contracting tonically in response to stimulation with acetylcholine were recorded in a 30 s exposure with synchrotron radiation and a high-sensitivity X-ray area detector called an imaging plate. The 190 Å layer line from the thin filaments increased in intensity with increase in tonic tension up to 6 x 104 kg m−2. Above this value, the layer-line intensity remained almost constant and comparable to that for a contracting skeletal muscle, indicating that the same structural changes of the thin filaments occur in both muscles.

Highly Sensitive X-Ray Stress Measurement in Small Areas

1992 ◽  
Vol 36 ◽  
pp. 505-513 ◽  
Author(s):  
Nobuyuki Fujii ◽  
Shigeru Kozaki
Keyword(s):  
Exposure Time ◽  
Stress Measurement ◽  
High Sensitivity ◽  
Measuring Method ◽  
304 Stainless Steel ◽  
Imaging Plate ◽  
List Type ◽  
X Ray ◽  
Small Areas ◽  
The Difference

AbstractThe authors tried a new measuring method for stresses in small areas of ceramics. This method is characterized by the following.1)Applicable to small areas.2)High sensitivity.3)Stress calculations by measuring the average Debye ring radius in view of spotty diffraction rings.4)The use of an imaging processor for (3).5)The use of an imaging plate (IP) for reducing the exposure time.We worked out a computer simulation about errors of the values measured by our method. The result showed a good approximation. With a test piece applied with a certain load, the difference between stresses measured by our method and those by a strain gauge was about 12 percent. We applied this method to the measurement of residual stresses which took place near the silicon nitride (Si3N4)/304 stainless steel brazing point interface. In the case of using an X-ray beam of 100 μm diameter, the exposure time was 90min with a high sensitive X-ray film and 3min with the imaging plate. In the case of an X-ray beam of 40 μm diameter, it was 120 to 190 min with the imaging plate.

X-Ray Analysis of Stress in a Localized Area by Use of Imaging Plate

1991 ◽  
Vol 35 (A) ◽  
pp. 537-543 ◽  
Author(s):  
Yasuo Yoshioka ◽  
Shin'ichi Ohya
Keyword(s):  
Short Exposure ◽  
Imaging Plate ◽  
Image Analyzer ◽  
Single Exposure ◽  
Short Exposure Time ◽  
X Ray ◽  
Area Detector ◽  
Lattice Strains ◽  
Exposure Method

AbstractFor determination of stress in a localized area, we combined a modified single exposure technique and the imaging plate, which is an x-ray digital area detector. With the, single exposure method, stress value is obtained from lattice strains in two directions with a single incident x-ray beam directed at an oblique angle. However, since diffraction data around a whole Debye-Scherrer ring was used in this study, a stress value can be accurately determined in comparison with the single exposure method. We observed the DS ring by use of the imaging plate with requiring only a short exposure time. Lattice strains in many directions on a DS ring were measured by an image analyzer connected to a computer; we verified the effectiveness of this method.

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.

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.

Performance of an imaging plate as an x‐ray area detector used for plane‐wave x‐ray diffraction topography

1995 ◽  
Vol 66 (9) ◽  
pp. 4487-4491 ◽  
Author(s):  
Y. Kudo ◽  
S. Kojima ◽  
K.‐Y. Liu ◽  
S. Kawado ◽  
T. Ishikawa ◽  
...  
Keyword(s):  
Plane Wave ◽  
Imaging Plate ◽  
X Ray Diffraction ◽  
X Ray ◽  
Area Detector

scholarly journals Radiation Imaging with Caesium Bromide Storage Phosphors

2021 ◽  
Author(s):  
◽  
Nicola Maree Winch
Keyword(s):  
Conversion Efficiency ◽  
Dual Energy ◽  
Neutron Imaging ◽  
Imaging Plate ◽  
Storage Phosphor ◽  
X Ray ◽  
Imaging Results ◽  
Dual Energy Imaging ◽  
Storage Phosphors ◽  
Imaging Plates

<p>This thesis is centred on the development of a new method to prepare semitransparent CsBr:Eu²⁺ imaging plates for high resolution X-ray radiography. Methods of characterising the performance of these plates, and their application to dual energy imaging and neutron imaging are discussed. The basic preparation method, based on high-pressure uniaxial compression of powder mixtures of CsBr and EuBr₂, produces imaging plates which show good transparency and resolution. These imaging plates have a conversion efficiency of 1.5 pJmR⁻¹mm⁻³ compared to 5.1 pJmR⁻¹mm⁻³ for a commercial needle imaging plate. Water is found to play a critical role in the photostimulated luminescence activation in CsBr:Eu²⁺ storage phosphors, and imaging plates subsequently hydrated at room temperature have an increased conversion efficiency of up to 11 pJmR⁻¹mm⁻³, better than the commercial material. A model has been suggested for the generation of the PSL active site in the imaging plates based on thermomechanical sintering and water-induced crystal regrowth. A precise method for determining the conversion efficiency and stimulation energy of X-ray storage phosphor materials using an integrating sphere has been developed and used to characterise the materials developed in this thesis. A novel read-out method for storage phosphor imaging plates based on flood illumination and a semi-professional digital camera has also been developed and tested. Good quality X-ray images are obtained and the method shows excellent promise as a low-cost, portable X-ray imaging system. A stratified detector using CsBr imaging plates has been developed for use in dual-energy imaging. Results suggest that it is possible to perform dual-energy imaging with this structure. CsBr:Eu²⁺ imaging plates have been produced with added neutron converters for use as thermal neutron imaging plates. An imaging plate with 5 % ¹ºB₂O₃ added as a neutron converter has a PSL output 50 % that of a commercial neutron imaging plate. Neutron imaging with these imaging plates has been successfully demonstrated.</p>

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