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河田 聡
2003 年 66 巻 Suppliment1 号 p.
2-3
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
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西見 大成
2003 年 66 巻 Suppliment1 号 p.
4-5
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
The methods for preparing nanoparticles of functional organics for photographic applications are reviewed. To make solid organic nanoparticles, milling organics, precipitating organics by solvent shifting, and precipitating organics by pH shifting are used. For the preparation of small liquid dispersion, emulsification has been used for a long time. As a new emulsification technique, “spontaneous emulsification” is discussed.
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写真乳剤におけるハロゲン化銀微結晶の形成技術
石川 貞康
2003 年 66 巻 Suppliment1 号 p.
6-9
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
Silver halide crystals are the functional centers, in other words, the “engines”, of silver halide photographic materials. The process of manufacturing silver halide crystals comprises many technologies that control crystal size, shape, halide composition, and other essential aspects. With a focus on the manufacture of several silver halide crystals, development of recent technologies are reviewed and discussed.
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片桐 良伸
2003 年 66 巻 Suppliment1 号 p.
10-11
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
The technology to coat multilayer simultaneously has been developed in the photographic industry. Basic principle and practical aspects of this technology will be discussed.
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バーミヤン遺跡の取材現場から
中 淳志
2003 年 66 巻 Suppliment1 号 p.
12-13
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
In May of 2002, I visited the Bamiyan Caves to see if the paintings that had been believed to be completely destroyed by Taliban were still there, and I reported what I saw. I felt difficulty in writing documents of cultural assets without detailed learning. In the Exhibition held at the Manyou Museum in Nara, pictures I took and old ones taken by Professor Takayasu Higuchi, the reader of Kyoto University Central Asia Academic Study Group, were displayed for comparison of the present and before the destroy by Taliban.
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文化財の保存に果たす役割
西村 寿美雄
2003 年 66 巻 Suppliment1 号 p.
14-16
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
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鈴村 明
2003 年 66 巻 Suppliment1 号 p.
17
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
国立民族学博物館では、現地調査の成果として保存が必要であると考えられる多種多様で膨大な資料が持ち込まれてくる。どの資料を保存し、どの資料を破棄するか。そして、どの資料をどのレベルで保存するか。公的な機関としての博物館が現在も悩み続ける資料の管理・保存の課題について資料整理の現場担当が報告する。
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井本 昭
2003 年 66 巻 Suppliment1 号 p.
18-19
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
埋蔵文化財とは、地中に埋もれている過去の人類の遺跡や遺物のことである。考古学は、遺跡の発掘により、どのような遺構から、どのような遺物が、どのような状態で出土したかを調査研究し、「人間の遺したものを使つて、過去の人間の生活 (文化) を復元する」ことを目的としている。
埋蔵文化財は、祖先の遺したもの=国民共有の財産という認識に立つている。埋蔵文化財調査と写真記録の現状と課題、さらに埋蔵文化財写真技術研究会の活動について述べてみる。
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南方熊楠菌類彩色図譜
岩崎 仁, 田中 伸也
2003 年 66 巻 Suppliment1 号 p.
20-21
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
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教育と研究の視点からの報告
小出 正志
2003 年 66 巻 Suppliment1 号 p.
22-23
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
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山本 浩平, 増田 龍治
2003 年 66 巻 Suppliment1 号 p.
26-27
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
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埋蔵文化財写真技術研究会の活動
井上 直夫
2003 年 66 巻 Suppliment1 号 p.
30-31
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
Formerly the level of archaeological photography in general was farfrom sufficient. The society for archaeological photography was founded with the intention of improving this situation. Besides this aim, the society has been providing a common space for the archaeological photographers scattered all over the country, and promoting association between field archaeologists and photographers.
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牛窪 孝洋, 森本 太郎, 橋本 勝嗣, 小林 範久
2003 年 66 巻 Suppliment1 号 p.
32-33
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
We have already prepared PAn/DNA complex via photopolymerzation and have demonstrated EL device with PAn/DNA complex. However, emission and charge transport mechanism in this device are still not clear. It is necessary to clarify charge transport mechanism of PAn/DNA complex in order to prepare high-efficiency EL device. In this research, we measured charge carrier mobility of some complexes by means of Time of Flight technique and studied charge transport properties.
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山口 敦, 米谷 紀嗣, 米澤 義朗, A. N. Lobanov, A. G. Vitukhnovsky
2003 年 66 巻 Suppliment1 号 p.
34-35
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
LB films incorporating the J-aggregate of cyanine dyes, N, N'-dioctadecyl-oxacyanine perchlorate (S9) and N, N'-dioctadecyl-thiacyanine perchlorate (S11), were prepared by using octadecane as the matrix molecule. Fluorescence spectra of the LB films were measured in wide temperature range. Fluorescence intensity and its peak position of S9 and S 11 depend on temperature. In low temperature fluorescence spectra of S9 and Sll J-aggregates, a broad peak appeared whose position is located at longer wavelength than that of resonance fluorescence. The increase of fluorescence intensity was observed at low temperatures. These effects were also observed for the S9 + S11 mixed aggregate.
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写真用増感色素からの応用
堀内 保, 三浦 偉俊, 内田 聡
2003 年 66 巻 Suppliment1 号 p.
36-37
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
A solar-to-electric conversion efficiency of 6.2% has been achieved with this new dye, compared to 5.8% for N3 dye (Ru complex) under the same experimental conditions. Although indoline dyes have narrow absorption bands in comparison to N3-dye, indoline dyes shows large photocurrent due to large amount of IPCEs. Furthermore, indoline dyes have reversible peaks in cyclic voltammogram, which might suggest high stability.
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川崎 三津夫, 青山 聡史
2003 年 66 巻 Suppliment1 号 p.
38-39
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
A simple electrode assembly consisting of mixed 2D J-Aggregates organized on aminothiolate-modified Au (111), when placed in Fe
2+/Fe
3+ (Malonic acid) redox solution, generated a large cathodic photocurrent with quantum yield easily exceeding 20%, despite the close proximity of the J-aggregate to the metal surface that generally causes strong quenching of the excited J-aggregate. The relationship between the photocurrent quantum yield and dye mixing ratio revealed a distinct super additive effect of dye mixing closely related to the dye supersensitization in silver halide imaging system. The results have been analyzed to obtain new insights into the supersensitization mechanism such as the hole-trapping model, the exciton-trapping model, etc. as previously proposed.
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谷 忠昭
2003 年 66 巻 Suppliment1 号 p.
40-41
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
According to time-resolved photoconductivity measurements, the rate of the capture of photoelectrons by traps on the grain surfaces was diffusion-limited in AgCl grains and reaction-limited in AgBr grains. Trapped electrons could survive for longer time in AgCl grains than in AgBr grains owing to the fact that the ionic relaxation in the former was much slower than that in the latter. It was also revealed by time-resolved photoconductivity that trapped electron were inclined to recombine with positive holes under high-intensity exposure, and that the recombination could be suppressed by hydrogen hypersensitization.
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三ツ井 哲朗, 浅沼 直樹, 守本 潔
2003 年 66 巻 Suppliment1 号 p.
42-43
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
We studied the morphrogy of silver bromide crystals grown in DMSO. The mm-size silver bromide crystals with particular surface indexes and morphologies can be selectively produced by the control of Ag
+, Br
-, and H2O concentration in DMSO solvent.
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茂木 文雄, 田中 克彦, 兵藤 知義
2003 年 66 巻 Suppliment1 号 p.
44-45
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
We have been studying a new small sized, high processing speed full digital lab system. As a result, a magnificent color paper processor technology was developed for a compact, faster digital minilab by incorporating a submerged wiper-blade component system. This system has realized stable outstanding quality in faster processing time. In addition we are successful in improving printing quality not making any failure thanks to the development of down-flow circulation structure and conductivity sensor. This is our special submerged crossover technology for processing.
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吉田 和昭, 中井 泰史, 鈴木 真
2003 年 66 巻 Suppliment1 号 p.
46-47
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
A rapid process is one of the essential requirements for photographic digital printer processors. Chemical technologies to attain the rapid process have been developed. One of the technologies is reduction of residual sensitizing dye stain with two new stain reducing compounds. A stain reduction mechanism that includes sensitizing dye-stain reducing compound complex formation is proposed.
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小川 誠, 大野 信, 内藤 明, 船生 望, 藤井 豊子, 前山 貞夫
2003 年 66 巻 Suppliment1 号 p.
48-49
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
In the digital photography system, the tonal characteristics of the system is evaluated by Camera-Through Sensitometry as the traditional silver halide analog photography. During the camera-through sensitometry, the lightness data on the displayed image of lightness linear single color step chart on the CRT monitor showed linear relation to the input data level. The slope of that characteristics indicated the qualitative tone characteristics of digital still camera. It was also closely related to the tonal characteristics of reproduced object image on the photo-prints taken by DSC and printed by digital color printer.
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徳永 幸雄
2003 年 66 巻 Suppliment1 号 p.
50-51
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
It is important for the photo ink jet paper to be recognized whether the glossy is acceptable or not for the people. Using several different type of glossy papers, the correlation of subjective evaluation on a feeling of gloss with some measurement data of the surface property were investigated. The data on ASTM E430 RS seems to have the best correlation to human sense.
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小林 孝治, 久下 謙一, 安田 仲宏, 熊谷 宏, 長谷川 朗
2003 年 66 巻 Suppliment1 号 p.
52-53
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
Photographic color film exposed to charged particles displays tracks of them with colored image, and the color change of tracks will offer the three dimensional information (3DI) of them in the layers. The colored tracks of α-particles from a radiation source enclosed in the film layer were obtained with this method and the color change revealed 3DI of the tracks which gave the net range of particles. The energy of particle was estimated from the net range and the element composition of the layer in using the energy calculation software SRIM 2003. The energy distribution coincided with the decay series from
226Ra.
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照射光波長と強度への依存性 (II)
土屋 清晃, 久下 謙一, 長谷川 朗
2003 年 66 巻 Suppliment1 号 p.
54-55
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
The microwave photoconductivity signals in AgBr emulsion microcrystals were measured in the various wavelength and intensity of the incident light. From this result, we studied properties of the microwave photoconductivity of AgBr emulsion microcrystals. The number of the exited free electrons was satured with the increase in irradiated light intensity. In weak light intensity, the decay time was depended on the number of absorbed photon.
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和田 一高, 久下 謙一, 長谷川 朗
2003 年 66 巻 Suppliment1 号 p.
56-57
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
In latent image formation process, the electron traps have the important role. So, it is useful for the increasing sensitivity of photographic materials and the elucidation of photographic process to measure the number of the electron traps in silver halide microcrystals. By measuring a decay time in liquid nitrogen (77.3K), we tried to estimate the number of electron traps. The result is that decay time became long with the increase of radiated photon number and was saturated. Consequently, the number of electron traps per one grain could be estimated from the number of absorbed photons.
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宮嶋 弘樹, 柴 史之, 大川 祐輔, 大野 隆司, 村椿 良司, 高沢 義昭
2003 年 66 巻 Suppliment1 号 p.
58-59
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
The purpose of this study is to explore the optimum conditions for dichromated gelatin phase hologram preparation. Influence of the molecular weight distribution and the hardening conditions of gelatin on the image quality of the hologram was investigated. It was found that the stronger hardening gave the more even diffraction grating and the lower diffraction efficiency, and that gelatin with lower molecular weight gave the higher diffraction efficiency.
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陶山 倫之, 岩崎 仁
2003 年 66 巻 Suppliment1 号 p.
60-61
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
In order to prepare the photosensitive materials for reflection holograms, not only high resolution but also suitable sensitivity is required. The grain size of the silver halide emulsion affects both of them. In this paper, fish gelatin, whose characteristics are different from those of animal gelatins, was used to prepare the emulsions and various kinds of silver halide emulsion were prepared by changing the experimental conditions.
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小松 彩, 粟辻 安浩, 久保田 敏弘
2003 年 66 巻 Suppliment1 号 p.
62-63
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
The characteristics of the reconstructed image from the edge-illuminated reflection hologram recorded with a slit are analyzed. The hologram is suitable for a practical three-dimensional display because it takes such the advantages that it makes display system compact and that it also displays sharp deep reconstructed images when it is illuminated by a white-light source. The resolutions of the reconstructed image from the hologram are both numerically and experimentally evaluated. The experimental result on the resolution well agrees with the numerical result.
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辰巳 大佑, 藤本 昌典, 西城 浩志
2003 年 66 巻 Suppliment1 号 p.
64-65
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
A spectrometric Cathodoluminescence (CL) detection, recording and real-time full-color display system is constructed using 32-channel photoelectron multiplier. The spectrometric data of each pixel in CL micrograph is stored in the computer after 12-bit AD conversion, and the data is displayed during the microscopic observation for easy and rapid grasp of the specimen properties. A special data structure for rapid storage and accessing to realize real-time CL image display must be taken into account because of the data size of CL micrograph. The stored spectra are processed to enhance the difference in wave shape and displayed for the accurate recognition of the specimen structures.
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鉛山 洋一, 内田 義春
2003 年 66 巻 Suppliment1 号 p.
66-67
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
A trial of flexible lighting equipment using fluorescent lights was carried out.
This lighting equipment features easy control position and brightness. Furthermore, it was effectively used in photographing still life photo and portraits by using a digital camera.
Also, it is easy to reassemble, assemble transfer, therefore it has possibilities of use for photographing in studio and outside locations.
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山田 勝実, 田部 洋
2003 年 66 巻 Suppliment1 号 p.
68-69
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
We have reported about the application of poly (disulfide) film as the substrate for immobilization of functional molecules on the electrode. In order to develop new immobilization mode, electrochemical oxidations were carried out with trithiocyanuric acid (TTCA) polymer and ferrocenyl type thiol compound in the acetonitrile solution. And, their immobilization characteristics were evaluated by an electrochemical quartz crystal microbalance (EQCM) technique. It was found that the ferrocenyl compound immobilized in TTCA polymer environment showed a good electrochemical reversibility.
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ビヨルンガルト ハルボア, 青木 直和, 小林 裕幸
2003 年 66 巻 Suppliment1 号 p.
70-71
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
プラチナプリントは高画質の非常に保存性の高い印画法である。現在大きなサイズのコンタクトネガを作成し
プリントするのが普通のやり方であるが、引伸機が使えるような感度となるよう化学増感、分光増感を試みた。
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岡本 正昭, 吉川 菊惠, 小松 久美子, 志水 英二
2003 年 66 巻 Suppliment1 号 p.
74-75
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
See-through screen using holography is required as a tool of visual presentation. On the other hand the authors proved that hologram screen is effective to the device for multi-view display. It is desired that such hologram screens can be projected along the axes. This paper proposes the combination of two volume holograms to realize a see-through screen that has superior diffractive efficiency even if it is illuminated neighboring to the axis.
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山本 典孝, 谷川 英夫, 寺崎 正, 望月 博孝, 谷垣 宣孝, 平賀 隆, 松尾 孝
2003 年 66 巻 Suppliment1 号 p.
76-77
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
We demonstrated Δn imaging of photopolymer for recording Holograms using scanning near-field optical microscope (SNOM). SNOM allows us to evaluate Δn at nano-scale resolution without special sample preparation. The obtained holograms were colorless and the transmittances of holograms were about 90%. We will discuss refractive index (n) distribution in photopolymer thin film.
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金田 真吾, 市原 正浩, 三村 寿文, 内田 孝幸, 大塚 正男
2003 年 66 巻 Suppliment1 号 p.
78-79
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
We made study of the comparative characteristic of transparent organic light emitting diodes TOLEDs by using three kinds of a typical transparent conducting oxide (ITO (In
2O
3-SnO
2), IZO (In
2O
3-ZnO), AZO (ZnO-Al
2O
3)). The cathode used for transparent conducting oxide was prepared by rf magnetron sputtering at room temperature. We have carried out a systematic study of cathode preparation by sputtering with the aim of investigating, (1) resistivity and transmission of transparent conducting films, (2) morphology of films on organic films by AFM images, (3) electron injection for TOLED by using alkali metal (Cs). An electronic injection improved by doping Cs, and the decrease in driving voltage and in leaking current of TOLED and the improvement of luminance were observed.
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久下 謙一, 齋藤 誠二, 彦坂 洋大, 長谷川 朗
2003 年 66 巻 Suppliment1 号 p.
80-81
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
Gold particles came into notice for its nonlinear optical effect and this effect depends on the density of particles in the layer. We improved upon the method of preparing gold particles by gelatin layer in using photographic film. Ultra-fine grain (FUG) emulsion seems to be suitable to condense the particles and we took notice of hologram-recording plates. We estimated characteristics of the particles by the absorption spectrum and the size distribution. The plate showed very large and sharp plasmon absorption with no bulk absorption of gold metal. The particles stopped growing at around 20-30 nm but the number of them increased with the immersion period. This suggests that UFG emulsion is desirable to this purpose.
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前野 裕, 倉光 昌之, 池田 秀夫, 桑島 茂, 坂東 信介
2003 年 66 巻 Suppliment1 号 p.
82-83
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
In the spring of 2003, Fuji Photo Film Co., Ltd. launched new color reversal films VelvialOOF and ASTIA100F, which achieved the striking features that any other color reversal film has never had before-superior image stability, faithful color reproduction and the highest level of image quality.
In this paper, we give a brief review of the state-of-the-art, innovative technologies that make it possible to deliver exceptional color reproduction - MCCL (Multi-Color-Correction Layer) Technology and HTILE (Highly Tuned Inter-Layer Effect) Technology.
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御子柴 尚, 松田 直人, 川岸 俊雄, 水川 裕樹, 加藤 康裕, 菅井 昌治, 高橋 修
2003 年 66 巻 Suppliment1 号 p.
84-85
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
We developed new three types of couplers (yellow, magenta, cyan) for reversal film. The yellow coupler has a benzothiadiazinedioxide structure. The magenta coupler has a pyrazolotriazole structure. The Cyan coupler has a pyrolotriazole structure. These three couplers with new structures are put into practical use for reversal film for the first time. The reversal films with these couplers have been greatly improved in image fastness and color reproduction.
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竹松 祐紀, 津村 徳道, 三宅 洋一
2003 年 66 巻 Suppliment1 号 p.
86-87
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
SSR (Single Scale Retinex model) and MSR (Multi Scale Retinex model) based on the Retinex theory for lightness and color constancy of human visual characteristics have been widely used to correction of image with color and tone failures. These methods, however, entire region of image is transformed to same direction of color and tone then the regions with good image quality is sometimes changed to unwanted quality. In this paper, we propose an new algorithm of Retinex model to improve the image quality by introduction of statistical image evaluation method. It is shown that the method is significant to correct the color and tone of image by comparison with SSR and MSR.
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秋山 佳之, 羽石 秀昭
2003 年 66 巻 Suppliment1 号 p.
88-89
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
One of possible way to predict the color image under a rendering illuminant different from capturing one is transform of original tristimulus values (TSVs) using a transform matrix that maps the TSVs of capturing illuminant to TSVs of rendering illuminant. Accuracy of color reproduction by this method was evaluated with two measures:(1) color difference from the exact reproduction using spectral reflectance of sample, (2) maximum value of color differences from reproduced color of sample's metamer ensemble under rendering illuminant. Results show that illuminant transform based on white balance can generate large color difference.
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小林 良, 羽石 秀昭, 味戸 剛幸, 福田 弘之
2003 年 66 巻 Suppliment1 号 p.
90-91
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
For exact color reproduction, a multi-band imaging technique is required in general. In this paper, suitable spectral characteristics of multi-band imaging system are discussed from the image quality point of view. Computer simulation using a multi-band imaging model in the presence of noise was first performed to understand the system's fundamental characteristics and then two kinds of six band capturing techniques were experimentally tested and the resultant image quality was evaluated.
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角本 兼一
2003 年 66 巻 Suppliment1 号 p.
92-93
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
A new CMOS image sensor featuring logarithmic conversion is described. The sensor has 654 (H) ×494 (V) pixels, and the cell size is 8μm (H) ×8μm (V). We previously developed logarithmic conversion CMOS image sensors with either an FPN cancellation circuit or an integration circuit. This one has both. The sensor shows clear images without FPN and without flicker noise in brightness fluctuation. Furthermore, we discovered a new driving method for movement object extraction of this CMOS image sensor.
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浅井 義行, 若江 祐子, 尾崎 吉明, 窪田 英明, 松本 政雄, 金森 仁志
2003 年 66 巻 Suppliment1 号 p.
94-95
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
The psychophysical gradient δ was obtained for various output devices of X-ray radiographic systems (Ex. Film/Viewer system, CRT and LCD). The δ can express more suitable visual sense than physical gradient. The shape of δ curve of CRT was flatter than that of film/viewer system. This means that the CRT gives more stable visual sense for wide dynamic range than film/viewer system. The Moon & Spencer model corresponding to VRF (Visual Response Function) was in good agreement with our measured value.
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金森 仁志, 浅井 義行, 若江 祐子, 窪田 英明, 尾崎 吉明, 松本 政雄
2003 年 66 巻 Suppliment1 号 p.
96-97
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
Theoretical and experimental approaches for edge enhancement effect of vision on an X-ray radiographic image were carried out. Psychophysically enhanced portions in density unit at the both sides of a step edge image were derived from MTF's of vision and radiographic systems. Experimantal values were obtained using our new method. Experimental values distributed around theoretical values, and their qualitative behaviour was similar to that of theoretical values. Discrepancy between theoretical and experimental results dues to nonlinearity of human visual system.
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松本 政雄, 一丸 恭伸, 小縣 裕二, 東田 喜治, 大喜 雅文, 氷室 和彦, 井出口 忠光, 吉田 彰, 山崎 達也, 野北 真, 林 ...
2003 年 66 巻 Suppliment1 号 p.
98-99
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
Recently, FPD is often used in clinical. This time, the presampling MTFs were measured and compared by the slit and edge methods. Alignment is difficult for the slit method. The edge method is comparatively easy alignment. By the slit method, it calculated using the synthetic LSF method, and the synthetic LSF method was applied and calculated by the edge method. MTF values were in agreement on below the Nyquist frequency between the slit and edge methods. From this result it will come in useful to use the edge method for measurement of the Presampling MTF.
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松本 政雄, 能野 志芳, 末兼 浩司, 金森 仁志
2003 年 66 巻 Suppliment1 号 p.
100-101
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
When the Wiener spectrum of a flat panel detector (FPD) is calculated, scan is carried out using a virtual slit. By changing the slit length of virtual slit, we investigated how the Wiener spectrum would be influenced. Consequently, the Wiener spectral value rose as the slit length was enlarged, and the Wiener spectral value was converged in 16-pixels slit length. The Wiener spectral value did not change in 16 pixels or more slit length. Therefore, the slit length of virtual slit using for the calculation of Wiener spectrum of FPD should just use 16-pixels slit length.
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2003 年 66 巻 Suppliment1 号 p.
104-105
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
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大野 隆司, 沢田 真理子, 柴 史之, 大川 祐輔, 村椿 良司, 高沢 義昭
2003 年 66 巻 Suppliment1 号 p.
106-107
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
The sample gelatin solution was jetted at high velocity. The molecular weight distribution and pH dependence of physical retardance of jetted gelatin were examined. The high molecular weight component in the gelatin cleaved by the high velocity jet, and β and α components increased. The pH dependence of physical retardance of the jetted gelatin decreased in an acid pH range. It was suggested that this method had an effect on physical retardance.
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大川 祐輔, 遠藤 稚子, 柴 史之, 大野 隆司, 村椿 良司, 高沢 義昭
2003 年 66 巻 Suppliment1 号 p.
108-109
発行日: 2003/11/11
公開日: 2011/08/11
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フリー
Viscoelastic behavior of the blend system of gelatin and K-carrageenan was examined. Addition of carrageenan increased the viscosity of aqueous gelatin solution, suggesting formation of a gelatin-carrageenan complex. Solutions of carrageenan and gelatin-carrageenan blend showed shear thinning under a steady flow. The water jet treatment of carrageenan showed lowered viscosity corresponding to the lowered molecular weight and similar shear thinning behavior to untreated carrageenan. The blend solution of gelatin and the jet-treated carrageenan showed increased viscosity but no shear thinning behavior.
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湊 健, 椿井 靖雄
2003 年 66 巻 Suppliment1 号 p.
110-111
発行日: 2003/11/11
公開日: 2011/08/11
ジャーナル
フリー
Optical rotation measurement and size exclusion chromatography (SEC) are very useful to observe the solublefraction (S.F). We did the wash pretreatment two types gelatin powder at various temperature, and determined concentration of the soluble fraction (S.F) using optical rotation measurement and size exclusion chromatography (SEC). Molecular distribution of the soluble fraction (S.F) were confirmed with exclusion chromatography (SEC). Then, we hardened using the gelatin which performed the wash pretreatment. The concentration of soluble fraction obtained from hardened gelatin film using the two above-mentioned methods was measured. Two types gelatins, alkali ossein deionized and acid pigskin deionized, were employed in this study, and hardened with 1, 3-bis (vinylsulfonyl)-2-propanol (DVS).
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