Accession Number : AD0014733


Title :   PHOTOGRAPHIC EFFECTS OF COUNTER DISCHARGES


Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE LAB FOR APPLIED BIOPHYSICS


Personal Author(s) : LION, K S ; VANDERSCHMIDT, G F


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/014733.pdf


Report Date : May 1953


Pagination or Media Count : 67


Abstract : A study was made of a 2-dimensional photographic process which uses 2 parallel-plate electrodes. One plate was transparent to the radiation to be recorded, and a discharge-sensitive material was fastened on a carrier to the inside of 1 electrode. The study dealt primarily with an arrangement consisting of an electrode, gaseous discharge medium, emulsion, carrier, and electrode. An investigation of physical mechanisms of intensifier action suggested the superiority of the discharge technique. Various electrical methods for the reception of radiation patterns are reviewed. Experimental data were obtained on the characteristics of types of discharges; discharge-vs-voltage relationships; the influence of electrode distance, quenching agent, source intensity, and an inserted film; general characteristics of photographic emulsions in discharges; influence of film resistance; penetration depth in emulsion; and the effects of electrode configuration on discharges.


Descriptors :   *EMULSIONS , EXPERIMENTAL DATA , PHYSICAL PROPERTIES , RESISTANCE , INTENSITY , FILMS , TRANSPARENCE , ELECTRICAL PROPERTIES , DEPTH , QUENCHING , PENETRATION , ELECTRODES , CONFIGURATIONS , RECEPTION , GAS DISCHARGES , RANGE(DISTANCE) , RADIATION PATTERNS , IMAGE INTENSIFIERS(ELECTRONICS) , SOURCES , RADIATION


Subject Categories : Physical Chemistry


Distribution Statement : APPROVED FOR PUBLIC RELEASE