Ultrafine-grain silver halide emulsions for color holography: preparation and spectral characterization

1998 ◽  
Author(s):  
Masashi Iwasaki ◽  
Toshihiro Kubota
Keyword(s):  
Silver Halide ◽  
Spectral Characterization ◽  
Ultrafine Grain ◽  
Color Holography

Lippmann color holography in a single-layer silver-halide emulsion: improvement of color desaturation

1998 ◽  
Author(s):  
Zuoyou Li ◽  
Jianhua Zhu ◽  
Lurong Guo ◽  
Zhenqing Liu ◽  
Fumin Qiu ◽  
...  
Keyword(s):  
Silver Halide ◽  
Single Layer ◽  
Color Holography

Fabrication of ultra-fine-grain silver halide recording material for color holography

2008 ◽  
Author(s):  
H. I. Bjelkhagen ◽  
P. G. Crosby ◽  
D. P. M. Green ◽  
E. Mirlis ◽  
N. J. Phillips
Keyword(s):  
Silver Halide ◽  
Fine Grain ◽  
Recording Material ◽  
Color Holography

Ultrafine-grain silver-halide emulsions and their properties in reflection holography

1998 ◽  
Author(s):  
Ce Wang ◽  
Jianhong Wu ◽  
Ying Xu ◽  
Minxue Tang
Keyword(s):  
Silver Halide ◽  
Ultrafine Grain

Characterization of defects in tabular silver halide grains

1990 ◽  
Vol 48 (4) ◽  
pp. 1046-1047
Author(s):  
C. Goessens ◽  
D. Schryvers ◽  
J. Van Landuyt ◽  
A. Verbeeck ◽  
R. De Keyzer
Keyword(s):  
Radiation Damage ◽  
Silver Halide ◽  
Chemical Characteristics ◽  
X Ray ◽  
Free Region ◽  
Central Defect ◽  
Crystallographic Defects ◽  
Physical And Chemical ◽  
Two Sides

Silver halide grains (AgX, X=Cl,Br,I) are commonly recognized as important entities in photographic applications. Depending on the preparation specifications one can grow cubic, octahedral, tabular a.o. morphologies, each with its own physical and chemical characteristics. In the present study crystallographic defects introduced by the mixing of 5-20% iodide in a growing AgBr tabular grain are investigated. X-ray diffractometry reveals the existence of a homogeneous Ag(Br1-xIx) region, expected to be formed around the AgBr kernel. In fig. 1 a two-beam BF image, taken at T≈100 K to diminish radiation damage, of a triangular tabular grain is presented, clearly showing defect contrast fringes along four of the six directions; the remaining two sides show similar contrast under relevant diffraction conditions. The width of the central defect free region corresponds with the pure AgBr kernel grown before the mixing with I. The thickness of a given grain lies between 0.15 and 0.3 μm: as indicated in fig. 2 triangular (resp. hexagonal) grains exhibit an uneven (resp. even) number of twin interfaces (i.e., between + and - twin variants) parallel with the (111) surfaces. The thickness of the grains and the existence of the twin variants was confirmed from CTEM images of perpendicular cuts.

Optimized Synthesis and Spectral Characterization of Some Hydrazones Based on 5-Nitroindazole with Pharmacological Potential

2014 ◽  
Vol 59 (3) ◽  
pp. 313-318
Author(s):  
C. Cheptea ◽  
◽  
L.M. Ivan ◽  
D.O. Dorohoi ◽  
V. Sunel ◽  
...  
Keyword(s):  
Spectral Characterization ◽  
Pharmacological Potential
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