NATIONAL PHOTOGRAPHIC INTERPRETATION CENTER R & D NEWS NOTES

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A001300030007-9
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 5
• Document Creation Date: December 28, 2016
• Document Release Date: February 1, 2005
• Sequence Number: 7
• Publication Date: August 1, 1968
• Content Type: NOTES

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NATIONAL PHOTOGRAPHIC INTERPRETATION CENTER
TECHNICAL SERVICES and SUPPORT GROUP
'Vol. 1, No. 7
August, 1968
The following items have been taken from R&D progress reports of
the Technical Services and Support Group and are being distributed be-
cause of their general interest. We would like to know what questions
or problems you have concerning the items reported in this edition.
Your comments concerning related R&D topics will also be appreciated.
A form is attached that will make it more convenient for you to submit
your comments. An effort will be made to answer them either personally
or in future R&D News Notes.
Summary of 8 Non-Conventional Film Systems
A large number of non-conventional film systems are either in the
process of development or available as commercial products. A report
written by Room 5S-453H) with the above
title presdrits eig i eren non-conventional film systems in compar-
able format so that the reader can quickly decide which systems may
fulfill his needs. The report does not purport to provide the detailed
comparisons necessary to make decisions on marginal superiorities when
two or more of the materials are in close competition for a special use.
In a lot of ways, the comparisons made are those of "apples and oranges."
Because of the extensive market, plenty of room exists for each of
these materials to supplant and/or supplement conventional silver films.
The 8 systems fall into 3 different categories; unique ways to process
conventional silver films, use of silver in unconventional film materials,
and attempts at the ultimate non-silver and truly dry film and processing.
The 8 film systems are: BIMAT Transfer Processing, BIMAT/DESIMAT System,
GEL Processing, ITEK RS, Dry Silver, DIAZO, Photopolymer, Free-Radical.
The report is classified Secret, but this article is
Eaclvd.d From aur.m.i<
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Declass Review by NGA.
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Survey Instrument for Hazardous X-Rays
The NPIC Test and Evaluation Branch has obtained an X-ray survey
instrument from the National Center for Radiological Health of the
National Institute of Health. It is the same type instrument that was
developed by that center for their study of hazardous X-ray emissions
from color television receivers.
Any electrical equipment which generates high vacuum tube voltage
may emit X-rays. Numerous machines at NPIC fall within this cate or
and are being tested with this new instrument. So far thel
Modulated Light Film Viewer, the Automatic Registration Electronic
Stereoscope (ARES) and the DUltrasonic and Detection Alarm Display
Board have been tested and found free of hazardous emissions.
Figure 1 shows how the wand-like instrument is passed over all sur-
faces in conducting a survey. The small container which appears in
Figure 2 was produced at NPIC to protect both personnel and unexposed
silver halide emulsions from the mildly hazardous radioactive test source
which was provided to test the instrument itself.
The National Council on Radiation Protection and Measurement has
set the maximum acceptable level for X-ray emissions from home television
receivers at 0.5 milliroentgens per hour at 5 cm. distance from the ex-
ternal surfaces. The NPIC T&E Branch will consider any emissions in
excess of this a possible health hazard. However, making such a quanti-
tative measurement is not simple. The survey instrument can only indicate
that significant emissions are present. Other instruments and techniques
must be used to determine the actual quantity.
To dig deeper see "X Radiation from Color Television Receivers,"
IEEE Spectrum, July 1968.
The test engineer is
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Superimposition Viewer
The Superimposition Viewer is an electronic system developed by the
Naval Reconnaissance and Technical Support Center to provide a display
of three sensor records on one cathode ray tube monitor. The pictorial
inputs may be: transformed to a common scale through a magnification
range from .3 to 30X; rotated to a mutual alignment through 360 degrees;
and viewed as a continuous image or with a flicker rate from 1 to 12
times per second. This instrument is a simple, versatile, reliable de-
vice that can be used for three tasks: screening, superimposition viewing
and change detection.
Three input stations are provided: one accepts up to 92" roll or
cut transparencies; the other two accept up to 5" roll or cut trans-
parencies, with the largest area projected being L" square. A joystick
is employed for X-Y translations, and levers are provided for magnifi-
cation, rotation, forward and reverse film device. All three channels
are provided with horizontal and vertical tilt and panoramic rectification.
Testing procedures are now being delineated for the evaluation of
the concept of superimposition viewing. A three-phase testing program
is scheduled to begin in November 1968, with a completion date of
31 January 1969.
Point of Contacts: Naval
Reconnaissance and Technical Support Center,
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 An in-house development by the Exploratory Laboratory has resulted
in the possibility of obtaining more accurate estimates of population,
crop acreage, storage facilities, etc. from aerial photography. Work-
ing in cooperation with the Cartography Division/OBI/DDI, the Laboratory
made a custom grid reticle for use in population studies by DIA/AP-7D.
The 10 mm square reticle, shown in the enlarged photography, contains
1 mm and 0.1 mm square subdivisions on a high resolution glass plate.
The Cartography Division produced the model which was photographically
reduced 25.4X by the Laboratory. Dimensions of the finished reticle
were measured by TID/NPIC (IEG) on highly precise mensuration equipment
and found to be only 0.03% in error (3 parts in 10,000).
The ability to make custom reticles in-house resulted in considerable
cost and time savings. Commercial sources either did not stock this ret-
icle or their estimates to develop it were judged excessive for the small
number required. To date the Laboratory has produced 21 of the grid
reticles for DIA. It is presently able to make a variety of similar ret-
icles for custom applications.
The project is monitored by
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TO: Editor, R&D NEWS NOTES, TSSG/DED
Fate)
I would like to offer my comments/questions concerning some of
the following items.
a. Summary of 8 Non-Conventional Film Systems
b. Survey Instrument for Hazardous X-Rays
c. Superimposition Viewer
d. Custom Reticle Improves Estimates
Approv