Fading of minimum tracks in Ilford G-5 and K-5 emulsions

Journal Article · Fri Jan 01 04:00:00 EST 1960 · Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B

DOI:https://doi.org/10.1007/BF02724860· OSTI ID:4169913

Judek, B

The fading of plateau electron tracks in Ilford G-5 and K-5 emulsions, stored after exposure at temperatures of 20°C, - 1 °C, - 18 °C and - 40 °C, has been compared. It has been found that the same initial grain densities are obtained on tracks in both G-5 and K-5 emulsions with identical development one day after the exposure, while the rate of fading is lower in K-5 than G-5 emulsions. The results also show that the rates of fading in both emulsions are much higher at 68 °F than at the lower temperatures. After four weeks at 20 °C there is a marked effect, the reduction in blob densities being 41% in G-5 and 38% in K-5 emulsions. In emulsions tored at 0 °F, on the other hand, even for 2 1/2 months after the exposure, easily recognizable electron tracks have been obtained with blob densities reduced by only 18% and 13.5% respectively. No significant difference between the rates of fading at - 1 °C, - 18 °C and - 40 °C could be detected. It was also found that fading is much more rapid during the first two weeks after the exposure than during a later period.

• Research Organization: National Research Council, Ottawa
• Sponsoring Organization: USDOE
• NSA Number: NSA-14-012741
• OSTI ID: 4169913
• Journal Information: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B, Journal Name: Nuovo Cimento (Italy) Divided into Nuovo Cimento A and Nuovo Cimento B Vol. Vol: (10) 15, Suppl. No. 2; ISSN NUCIA
• Country of Publication: Country unknown/Code not available
• Language: English

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ALLOTROPY
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