Document Details


Title:
REPORT OF FALLOUT STUDY OF JANUARY 1956, 56 PROJECT N.T.S. (PARTIAL) (DELETED)
Author(s):
JOHNSON, W S [LOS ALAMOS SCIENTIFIC LABORATORY]
Subject Terms:
PROJECT 56; PROJECT 56 NO 4 EVENT; ALPHA DETECTION; GAMMA DETECTION; PLUTONIUM; PROCEDURES; AEROSOL MONITORING; FALLOUT TRAYS; DOSE RATES; DATA; FALLOUT PATTERNS; ACTIVITY LEVELS; MAPS; MONITORING STATIONS
Document Location:
Location - NNSA/NSO 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 - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1956 Mar 19
Declassification Status:
Sanitized
Document Pages:
0025
Accession Number:
NV0121398
Document Number(s):
H6107
Originating Research Org.:
LOS ALAMOS SCIENTIFIC LABORATORY
OpenNet Entry Date:
1994 Aug 27
Description/Abstract:
FOR THE ONE-POINT DETONATION TEST OF JANUARY 18, 1956, CONDUCTED AT THE NEVADA TEST SITE, INSTRUMENTATION AND PERSONNEL WERE ORGANIZED TO EVALUATE THE PLUTONIUM HAZARD IN AN EIGHTY DEGREE SECTOR OUT TO A DIST ANCE OF ONE MILE. DATA WERE COLLECTED ON GROUND CONTAMINATION AS WELL AS ON ELEVATED FLAT SURFACES. THESE DATA CORRELATED TO THE EXTENT THAT A CONCENTRATION OF 1000 D/M/IN2 APPEARS TO BE THE MINIMUM WHICH CAN BE DETECTED WITH A PORTABLE ALPHA SURVEY METER. GAMMA RADIATION MEASUREME NTS FROM THE SLIGHT NUCLEAR REACTION PROVIDES THE MOST COMPLETE CONTOU R OF CONTAMINATION. AIR CONCENTRATIONS WERE OBTAINED FOR THE FIRST HO UR FOLLOWING THE DETONATION. THE RESULTS WERE NOT ABOVE THE TENTATIVEL LY ESTABLISHED LIMITS FOR A ONE-HOUR EXPOSURE. KNOWN CONTAMINATED AREA S AT THREE-QUARTERS OF A MILE FROM THE ZERO POINT WERE STIRRED UP DELI BERATELY TO CREATE A MAXIMUM DUST CONDITION AND SAMPLED FOR AIRBORNE A CTIVITY. ALL RESULTS WERE ABOVE THE ACCEPTED TOLERANCE FOR CONTINUOUS EXPOSURE TO PLUTONIUM.


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