1950 Press Photo Cpl. Doris Apgar views new photographic radiation dosimeter For Sale
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1950 Press Photo Cpl. Doris Apgar views new photographic radiation dosimeter:
Note: Please study the images carefully to determine the condition of this vintage photograph, as it may not be in perfect condition. It may contain wrinkles, cracks, and possibly even tears due to its age and how it was handled before it got to us. A scanner may interpret colors and contrast differently than human eyes will, so it is possible that the actual photograph may be slightly darker or lighter in person. This vintage photograph is offered for sale as a collectible item and conveys no transfer of copyright. 1950 Press Photo Cpl. Doris Apgar views new photographic radiation dosimeter This is an original press photo. Washington -- This self-developing photographic dosimeter is the simple, inexpensive device to measure a person's exposure to atomic radiation. Suitable for mass production, the device is small and light and can be hung from the neck like a GIs dog tag. It consists of a small metal case containing a flat paper package made up of photographically-sensitized film and a pod of developing solution. Exposure to harmful gamma rays causes center of the film to turn light. The greater the exposure to radiation, the whiter the strip becomes. Comparison of the grade of whiteness with a graduated scale on strip edges indicates the degree of radiation to which wearer was exposes. It is estimated that the cases can be made for less than a dollar. Cpl. Doris Apgar is holding in her hand the Army's new self-developing photographic dosimeter, a device to measure the extent of exposure of individuals to atomic radiation. The device, worn about the neck, is capable of mass production. Readings can be obtained from the dosimeter in one minute after exposure to atomic rays, and without recourse to a photographic laboratory or supplementary equipment. Following exposure to radiation, the wearer (note the case suspended from chain around the neck) pulls the film plaque through a slot in the case, thereby breaking a pod containing developer chemicals and spreading the chemicals over the film. The user waits about one minute, tears open the plaque, and examines the sensitized strip and scale as Corporal Apgar does here. The film has graduated scales on its outer edges and an unexposed center part. Exposure to gamma radiation causes the center strip to turn light -- the greater the exposure, the whiter the strip. By comparing the center strip with the graded scale on the edges, a good measure of the dosage of radiation received by the dosimeter's user can be made The device was developed by the Polaroid Corporation of Cambridge, Massachusetts under the Signal Corps Engineering Laboratories, Fort Monmouth, New Jersey.Photo measures 10.25 x 8.25inches. Photo is dated 11-16-1950. PHOTO FRONT
Historic Images Part Number: nemo17550Payment & Checkout
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Tennessee and Washington residents will be charged sales tax on each order.We ship orders Monday through Friday. We do not ship on weekends or holidays. Our standard processing time is one business day from time of payment. FAQs
Q: Can I just download a digital version instead?
A: No, we sell only vintage originals and do not make or distribute any copies, including digital ones.
Q: Can I use this photograph in my book/blog/documentary/website?
A: The short answer is no. There is no transfer of copyright for republication or reproduction with these photographs when you purchase them, and only photographs taken before 1923 are currently automatically in the public domain. Permission from the copyright holder, which usually can be identified from the back of each photo, must be sought to republish or reproduce the image for any purpose.Q: Do you combine shipping and invoices? A: Due to limitations, we cannot combine items won on our different seller IDs for a single shipping charge. Multiple photos won on the same seller ID combine automatically through the checkout process. If you encounter problems with this, send us a message via messaging and we will send you an invoice. Q: How quickly do you ship the items once paid? A: We ship within one business day after your payment clears. If you do not receive an "order shipped" email from us by the close of the second business day from submitting payment, please e-mail us via messaging. Q: How do you make sure my photograph arrives safely?
A: We package each order between two cross-corrugated pieces of cardboard to ensure that the package is as difficult to bend as possible. We then wrap each order in a plastic sheet to help protect against moisture. We want you to rest assured that we take every precaution to ensure that the photograph you receive will be in the same condition in your care as it was in ours.
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Historic Images was formed in September 2009, with a handful of scanners working out of a basement to digitize newspaper photo archives. We have since moved out of the basement, and we can now archive thousands of photos per day. Our company has worked with magazines and newspapers from Detroit, Boston, Denver, Seattle, Tampa, Chicago, and New Orleans, just to name a few.
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