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Electron Beam Sensitive Leuconitriles

IP.com Disclosure Number: IPCOM000096247D
Original Publication Date: 1963-Mar-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Sporer, AH: AUTHOR

Abstract

Polyvinyl alcohol is combined with a leuconitrile material to form a film which is highly sensitive to electron beam bombardment. In one example, 2 ml of a 1.5% solution of polyvinyl alcohol containing 1.5% of hydroxyethylated pararosaniline leuconitrile are cast on 100 cm of a polyvinyl alcohol film. The resulting film is written on with a 70 kV electron beam at 6 mu amp current with a 0. 5 mil spot diameter and with a sweep time of 300 mu sec over 295 mils. The final image density in the line is about 3 and the line width is 0. 5 mil. This same film produces reasonable densities with a 100 mu sec sweep under the same conditions and with a 20 kV Beam at 13 mu amps and 100 mu sec sweep.

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Electron Beam Sensitive Leuconitriles

Polyvinyl alcohol is combined with a leuconitrile material to form a film which is highly sensitive to electron beam bombardment. In one example, 2 ml of a
1.5% solution of polyvinyl alcohol containing 1.5% of hydroxyethylated pararosaniline leuconitrile are cast on 100 cm of a polyvinyl alcohol film. The resulting film is written on with a 70 kV electron beam at 6 mu amp current with a
0. 5 mil spot diameter and with a sweep time of 300 mu sec over 295 mils. The final image density in the line is about 3 and the line width is 0. 5 mil. This same film produces reasonable densities with a 100 mu sec sweep under the same conditions and with a 20 kV Beam at 13 mu amps and 100 mu sec sweep.

The sensitivity of a polyvinyl alcohol-leuconitrile film over gelatin-leuconitrile films is increased. This is probably due to the fact that the electronic energy states of the polyvinyl alcohol are much higher than those of the leuconitrile. Thus, the electron beam energy is not dissipated in the polyvinyl alcohol, but transferred to the leuconitrile.

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