| Main Title |
Penetration into concrete of gamma radiation from fallout / |
| Author |
Titus, W. F.,
|
| Publisher |
Federal Civil Defense Administration, Civil Effects Test Group, |
| Year Published |
1958 |
| OCLC Number |
666805907 |
| Subjects |
Operation Plumbbob, Nev, 1957 ;
Concrete--Effect of radiation on ;
Nuclear bomb shelters--United States ;
Nuclear weapons--Safety measures ;
Blast effect ;
Nuclear explosions ;
Blast effects
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ERAM |
TK9210.T58 1958 |
|
Region 9 Library/San Francisco,CA |
10/21/2013 |
|
| Collation |
32 pages : illustrations ; 28 cm. |
| Notes |
"February 1958." "Issuance Date: August 22, 1958." Misc. No.: ITR-1477,Report No.: 0001865. Misc. No.: Project 35.1. Accession No.: 53489. Penetration in concrete of gamma radiation from fallout has been measured in an idealized geometry as a function of time after a nuclear detonation. At the same time the exposure dose rate in air at heights of 3 and 9 ft above the ground was measured with detectors shielded to be primarily sensitive to fallout radiation on the ground. A sandwich made of seven concrete slabs forming a mass of concrete with face dimensions large enough to reduce edge effects to a negligible amount was buried with its top surface flush with the ground. Ten remote-reading detectors were placed between the seven concrete slabs at intervals equal to approximately 1.4 mean free paths of concrete to a maximum depth of approximately 10 mean free paths. Two detectors, shielded from above with lead, were suspended in air from a tower at heights of 3 and 9 ft above the ground. The concrete mass and the tower were in the center of a cleared and leveled area approximately 200 yards in diameter. Thus the gamma radiation at the detectors resulted from an effectively infinite-plane source of radiation. Results are presented both as a function of time after the detonation and of depth of penetration of the radiation in concrete. Comparison of the results with theoretical calculations is made. |
| Place Published |
Washington, DC |
| Corporate Au Added Ent |
Atomic Energy Commission. |
| Title Ser Add Ent |
Operation Plumbbob - Nevada test site - preliminary report. |
| PUB Date Free Form |
February 1958 |
| Series Title Untraced |
Operation Plumbbob - Nevada test site - preliminary report |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20131018135850 |
| Language |
eng |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
02494cam 2200361Mi 45020 |
