Measurement of Half-Value Layer for QA and QC: Simple Method Using Radiochromic Film Density

2009 ◽  
pp. 780-783
Author(s):  
Tatsuhiro Gotanda ◽  
T. Katsuda ◽  
R. Gotanda ◽  
A. Tabuchi ◽  
K. Yamamoto ◽  
...  
Keyword(s):  
Radiochromic Film ◽  
Simple Method ◽  
Film Density

Evaluation of effective energy for QA and QC: Measurement of half-value layer using radiochromic film density

2009 ◽  
Vol 32 (1) ◽  
pp. 26-29 ◽  
Author(s):  
T. Gotanda ◽  
T. Katsuda ◽  
R. Gotanda ◽  
A. Tabuchi ◽  
K. Yamamoto ◽  
...  
Keyword(s):  
Radiochromic Film ◽  
Effective Energy ◽  
Film Density

scholarly journals Accuracy of Measurement of Radiochromic Film Density for High-energy X-rays

2004 ◽  
Vol 60 (11) ◽  
pp. 1533-1542 ◽  
Author(s):  
HIDEKI AOYAMA ◽  
YOSHIHARU AZUMA ◽  
SACHIKO GOTO ◽  
SEIJI TAHARA ◽  
HIROFUMI UNO ◽  
...  
Keyword(s):  
High Energy ◽  
Radiochromic Film ◽  
X Rays ◽  
Film Density ◽  
Accuracy Of Measurement

A simple way for producing holographic filters suitable for image improvement

1978 ◽  
Vol 36 (1) ◽  
pp. 226-227
Author(s):  
K.-H. Herrmann ◽  
E. Reuber ◽  
P. Schiske
Keyword(s):  
Transfer Functions ◽  
Diffraction Order ◽  
Lateral Position ◽  
Simple Method ◽  
Spatial Frequencies ◽  
Resolution Electron ◽  
Wiener Filters ◽  
Image Improvement ◽  
Optical Reconstruction ◽  
Set Up

Aposteriori deblurring of high resolution electron micrographs of weak phase objects can be performed by holographic filters [1,2] which are arranged in the Fourier domain of a light-optical reconstruction set-up. According to the diffraction efficiency and the lateral position of the grating structure, the filters permit adjustment of the amplitudes and phases of the spatial frequencies in the image which is obtained in the first diffraction order.In the case of bright field imaging with axial illumination, the Contrast Transfer Functions (CTF) are oscillating, but real. For different imageforming conditions and several signal-to-noise ratios an extensive set of Wiener-filters should be available. A simple method of producing such filters by only photographic and mechanical means will be described here.A transparent master grating with 6.25 lines/mm and 160 mm diameter was produced by a high precision computer plotter. It is photographed through a rotating mask, plotted by a standard plotter.

Rotary Beveling for In Situ Thin-Section Microscopy of Cell Cultures

1981 ◽  
Vol 39 ◽  
pp. 550-551
Author(s):  
Dean A. Handley ◽  
Jack T. Alexander ◽  
Shu Chien
Keyword(s):  
Cell Growth ◽  
Cell Cultures ◽  
Molecular Interactions ◽  
Convenient Method ◽  
Petri Dish ◽  
Simple Method ◽  
Thin Section Microscopy ◽  
Thin Sectioning ◽  
Organic Fluids

In situ preparation of cell cultures for ultrastructural investigations is a convenient method by which fixation, dehydration and embedment are carried out in the culture petri dish. The in situ method offers the advantage of preserving the native orientation of cell-cell interactions, junctional regions and overlapping configurations. In order to section after embedment, the petri dish is usually separated from the polymerized resin by either differential cryo-contraction or solvation in organic fluids. The remaining resin block must be re-embedded before sectioning. Although removal of the petri dish may not disrupt the native cellular geometry, it does sacrifice what is now recognized as an important characteristic of cell growth: cell-substratum molecular interactions. To preserve the topographic cell-substratum relationship, we developed a simple method of tapered rotary beveling to reduce the petri dish thickness to a dimension suitable for direct thin sectioning.

Development of a simple method for the determination of single nucleotide polymorphisms

2010 ◽  
Vol 34 (8) ◽  
pp. S75-S75
Author(s):  
Weifeng Zhu ◽  
Zhuoqi Liu ◽  
Daya Luo ◽  
Xinyao Wu ◽  
Fusheng Wan
Keyword(s):  
Single Nucleotide Polymorphisms ◽  
Nucleotide Polymorphisms ◽  
Simple Method ◽  
Single Nucleotide

Determination of the distribution of three nitrate reductase isoforms in soybean seedlings by chromatography and a simple method based on assay conditions

1992 ◽  
Vol 85 (3) ◽  
pp. 541-548 ◽  
Author(s):  
Nicole Cathala ◽  
Genevieve Conejero ◽  
Alain Gojon ◽  
Lucien Passama ◽  
Paul Robin
Keyword(s):  
Nitrate Reductase ◽  
Simple Method ◽  
Soybean Seedlings ◽  
Assay Conditions
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