Sensitivity and Sensitization of Silver Bromide Grains of Octahedral Sharp Doped with Ozalate Ions
In the emulsifying process of AgBr microcrystals in the double-jet apparatus controlled by a microcomputer, a certain amount of oxalate salt was injected at specific time and pAg into a reactor to prepare octahedral AgBr grain emulsions in which oxalate ions were doped at subsurface of AgBr microcrystals. The sensitometric results from these emulsions showed:1) that the sensitivities (Sd) of oxalate-doped emulsions, relative to those (S0) of the corresponding undoped ones as the controlled, regardless of whether it is primitive, or sensitized chemically and spectrally, were remarkably increased; 2) that a cooperative sensitization by oxalate dopant, S+Au and dye without significant increase in fog level; was reconfirmed; 3) that the sensitivity gains (Sd/S0) of octahedral AgBr emulsions were more than those of cubic ones.
Wangjing Ma Zhi Li Peicheng Duan Yanyan Zhao Xinmin Yang Wei Ju
Technical Institute of Physics and Chemistry, Chinese Academy of Sciences,Beijing, P.R.China New Material Institute of Shandong Academy of Sciences,Jinan, Shandong, P.R.China
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
685-687
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）