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An AN/PDR-77, a device used to detect and measure radiation,

An AN/PDR-77, a device used to detect and measure radiation,

An AN/PDR-77, a device used to detect and measure radiation, sits outside a simulated disaster site during a 2nd Marine Logistics Group training exercise aboard Camp Lejeune, N.C., Oct. 17, 2012. Marines were i... More

Bubble chamber event. Invisible gamma ray photons produce pairs of electrons and positrons in a bubble chamber at the Lawrence Berkeley National Laboratory. One of the most important results of modern physics, the direct conversion of energy into matter. See also XBD200007-01094.TIF. XBB6911-07281

Bubble chamber event. Invisible gamma ray photons produce pairs of ele...

Digital Preservation File Name and Format: 434-LB-6-XBD200001-00045.TIF Photographs Documenting Scientists, Special Events, and Nuclear Research Facilities, Instruments, and Projects at the Berkeley Lab

The Installation Commander, Brig. Gen. Evan C. Dertien,

The Installation Commander, Brig. Gen. Evan C. Dertien,

The Installation Commander, Brig. Gen. Evan C. Dertien, 96th Test Wing, speaks to the audience during the ribbon-cutting ceremony of the Air Force’s first Invisible Wounds Center Aug. 30 at the Eglin Air Force ... More

Marines with 2nd Marine Logistics Group put on protective

Marines with 2nd Marine Logistics Group put on protective

Marines with 2nd Marine Logistics Group put on protective gear at a training exercise aboard Camp Lejeune, N.C., Oct. 17, 2012. Chemical, biological, radiological and nuclear defense specialists taught the serv... More

Marines with 2nd Marine Logistics Group take off their

Marines with 2nd Marine Logistics Group take off their

Marines with 2nd Marine Logistics Group take off their protective suits after completing a field survey with the AN/PDR-77, a device that detects and measures radiation, during a training exercise aboard Camp L... More

A Marine with 2nd Marine Logistics Group reads the

A Marine with 2nd Marine Logistics Group reads the

A Marine with 2nd Marine Logistics Group reads the simulated radiation results from the AN/PDR-77, a device that measures and detects radiation, during a training exercise aboard Camp Lejeune, N.C., Oct. 17, 20... More

Lance Cpl. Steven Greenwood, chemical, biological,

Lance Cpl. Steven Greenwood, chemical, biological,

Lance Cpl. Steven Greenwood, chemical, biological, radiological and nuclear defense specialist shows Marines with 2nd Marine Logistics Group how to read the measurements of radiation on the AN/PDR-77, a device ... More

Lance Cpl. Steven Greenwood, chemical, biological,

Lance Cpl. Steven Greenwood, chemical, biological,

Lance Cpl. Steven Greenwood, chemical, biological, radiological and nuclear defense specialist shows Marines with 2nd Marine Logistics Group how to monitor radiation levels during a training exercise aboard Cam... More

The objects in this collection are from The U.S. National Archives and Defense Visual Information Distribution Service. The U.S. National Archives and Records Administration (NARA) was established in 1934 by President Franklin Roosevelt. NARA keeps those Federal records that are judged to have continuing value—about 2 to 5 percent of those generated in any given year. There are approximately 10 billion pages of textual records; 12 million maps, charts, and architectural and engineering drawings; 25 million still photographs and graphics; 24 million aerial photographs; 300,000 reels of motion picture film; 400,000 video and sound recordings; and 133 terabytes of electronic data. The Defense Visual Information Distribution Service provides a connection between world media and the American military personnel serving at home and abroad. All of these materials are preserved because they are important to the workings of Government, have long-term research worth, or provide information of value to citizens.

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