Document Details
Title:
OPERATION SUN BEAM, SHOT SMALL BOY, PROJECT OFFICERS REPORT - PROJECT 1.9 CRATER MEASUREMENTS (DELETED)
Author(s):
ROOKE, A D [UNITED STATES ARMY - DEPARTMENT OF]; DAVIS, L K [UNITED STATES ARMY - DEPARTMENT OF]; STRANGE, J N [UNITED STATES ARMY - DEPARTMENT OF]
Document Location:
Location - DOE/NNSA NUCLEAR TESTING ARCHIVE Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - NTA@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1965 Mar 03
Declassification Status:
Sanitized
Document Pages:
0073
Accession Number:
NV0051007
Document Number(s):
POR2208EX
Originating Research Org.:
UNITED STATES ARMY - DEPARTMENT OF
OpenNet Entry Date:
1994 Aug 26
OpenNet Modified Date:
2003 Sep 18
Description/Abstract:
THE SMALL BOY EVENT WAS DETONATED 10 FEET ABOVE THE PLAYA OF FRENCHMAN FLAT IN THE U.S. ATOMIC ENERGY COMMISSION'S NEVADA TEST SITE. MEASURE MENTS WERE MADE OF THE APPARENT CRATER BY AERIAL STEREOPHOTOGRAPHY AND GROUND SURVEY AND OF THE TRUE CRATER AND SUBSURFACE ZONES OF RESIDUAL DEFORMATION BY THE EXCAVATION AND MAPPING OF AN ARRAY OF VERTICAL, CO LORED SAND COLUMNS WHICH WERE PLACED ALONG ONE CRATER DIAMETER PRIOR T O THE SHOT. A MOUND AT GROUND ZERO REDUCED THE DEPTH AT THAT POINT TO 1.5 FEET (APPROXIMATELY 0.5 METER); HOWEVER, THIS WAS NOT CONSIDERED T HE APPARENT DEPTH FOR COMPARISON PURPOSES. THE TRUE CRATER APPEARED TO BE COINCIDENT WITH THE APPARENT CRATER IN RACIAL EXTENT. THE RESULTS OF THE CRATER EXPLORATION ARE DISCUSSED, PARTICULARLY THE PERMANENT C OMPRESSION OF THE MEDIUM BENEATH THE TRUE CRATER WHICH WAS RESPONSIBLE FOR THE MAJOR PORTION OF THE APPARENT AND TRUE CRATER VOLUMES. APPARE NT AND TRUE CRATER DIMENSIONS ARE COMPARED WITH THOSE OF PREVIOUS CRAT ERING EVENTS, WITH EMPHASIS ON THE RANGE OF BURST HEIGHTS ABOVE THE SU RFACE.