用铜物理显影的多级放大成像过程 Ⅰ.影像强化和节银效应

doi:10.7517/j.issn.1674-0475.1991.04.309

影像科学与光化学 ›› 1991, Vol. 9 ›› Issue (4): 309-312.DOI: 10.7517/j.issn.1674-0475.1991.04.309

• 研究简报 • 上一篇

用铜物理显影的多级放大成像过程 Ⅰ.影像强化和节银效应

庄思永¹, 傅延勋¹, 张宜恒¹, 韩永玲¹, 任新民², 黄德音³

1. 中国科学技术大学近代化学系, 合肥 230026;
2. 中国科学院感光化学研究所, 北京 100101;
3. 华东化工学院专用化学品研究所, 上海 200237

收稿日期:1990-03-27 修回日期:1991-01-10 出版日期:1991-11-20 发布日期:1991-11-20
通讯作者: 庄思永

AN IMAGING PROCESS WITH MULTI-STAGE AMPLIFICATION BY COPPER PHYSICAL DEVELOPMENT

ZHUANG SI-YONG¹, Fu YAN-XUN¹, ZHANG YI-HENG¹, HAN YONG-LING¹, REN XIN-MIN², HUANG DE-YIN³

1. Department of Modern Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China;
2. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P.R. China;
3. Institute of Special Chemicals, East-China University of Chemical Techeology, Shanghai 200237, P.R. China

Received:1990-03-27 Revised:1991-01-10 Online:1991-11-20 Published:1991-11-20

摘要/Abstract

摘要： 感光乳剂中卤化银颗粒接收足够的曝光量后可形成潜影,经过显影便成为可见影像。这个过程可以看作是第一级放大。它的放大因子为10~9。但是影像的密度取决于单位面积上显出的银量和银影像的遮盖本领。如果单位面积上显出的银颗粒太少,影像就不能被眼睛或仪器(如密度计)检测出来。单位面积上银颗粒太少可由两个原因造成的:或是因为曝光量太低以致具有可显潜影的颗粒太少;或是因为乳剂层中卤化银颗粒本来就太少。

关键词: 影像增强, 铜物理显影, 成像过程, 感光特性

Abstract: The imaging process with multi-stage amplification by copper physical development was studied with different emulsion coatings: the positive cine film, the negative emulsion coating, the direct positive emulsion coating and radiographic film. The results. showed that the sensitivity of the emulsion layer can be increased significantly by the copper physical development and the amount of coated silver can be greatly reduced. It is extremely interesting, as shown in this work, that a Lith Effect can easily be obtained by the copper physical development. The imaging process with multi-stage amplification can find practical applications in the following cases: i. the enhancement of faint images otherwise would not be detected; ii. the development of photographic materials with extremely low silver content; iii. the reduction of X-ray dosage in medical rediography.

Key words: imaging process, physical development image amplification, photographic characteristics

庄思永, 傅延勋, 张宜恒, 韩永玲, 任新民, 黄德音. 用铜物理显影的多级放大成像过程 Ⅰ.影像强化和节银效应[J]. 影像科学与光化学, 1991, 9(4): 309-312.

ZHUANG SI-YONG, Fu YAN-XUN, ZHANG YI-HENG, HAN YONG-LING, REN XIN-MIN, HUANG DE-YIN. AN IMAGING PROCESS WITH MULTI-STAGE AMPLIFICATION BY COPPER PHYSICAL DEVELOPMENT[J]. Imaging Science and Photochemistry, 1991, 9(4): 309-312.

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用铜物理显影的多级放大成像过程 Ⅰ.影像强化和节银效应

AN IMAGING PROCESS WITH MULTI-STAGE AMPLIFICATION BY COPPER PHYSICAL DEVELOPMENT

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