Document Details
Title:
REPORT OF FALLOUT STUDY OF JANUARY 1956, 56 PROJECT N.T.S. ( TABLES & CHARTS INCLUDED ) (DELETED)
Subject Terms:
PROJECT 56; PROJECT 56 NO 4 EVENT; RESEARCH PROGRAMS; RADIATION HAZARDS; PLUTONIUM; PROCEDURES; FALLOUT; AEROSOL MONITORING; FALLOUT TRAYS; ACTIVITY LEVELS; DATA; SOILS; DOSE RATES; ALPHA DETECTION; DIAGRAMS
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:
1956 Mar 19
Declassification Status:
Sanitized
Document Pages:
0041
Accession Number:
NV0129059
Originating Research Org.:
LOS ALAMOS SCIENTIFIC LABORATORY
OpenNet Entry Date:
1994 Aug 27
OpenNet Modified Date:
2003 Sep 18
Description/Abstract:
FOR THE ( ) ONE-POINT DETONATION TEST OF JANUARY 18, 1956, CONDUCTED A T THE NEVADA TEST SITE, INSTRUMENTATION AND PERSONNEL WERE ORGANIZED T O EVALUATE THE PLUTONIUM HAZARD IN AN EIGHTY DEGREE SECTOR OUT TO A DI STANCE OF ONE MILE. DATA WERE COLLECTED ON GROUND CONTAMINATION AS WEL L AS ON ELEVATED FLAT SURFACES. THESE DATA CORRELATE TO THE EXTENT THA T A CONCENTRATION OF 1000 DISINTEGRATION PER MINUTE PER SQUARE INCH AP PEARS TO BE THE MINIMUM WHICH CAN BE DETECTED WITH A PORTABLE ALPHA SU RVEY METER. GAMMA RADIATION MEASUREMENTS FROM THE SLIGHT NUCLEAR REACT ION PROVIDES THE MOST COMPLETE CONTOUR OF CONTAMINATION. AIR CONCENTRA TIONS WERE OBTAINED FOR THE FIRST HOUR FOLLOWING THE DETONATION. THE R ESULTS WERE NOT ABOVE THE TENTATIVELY ESTABLISHED LIMITS FOR A ONE-HOU R EXPOSURE. KNOWN CONTAMINATED AREAS AT THREE-QUARTERS OF A MILE FROM THE ZERO POINT WERE STIRRED UP DELIBERATELY TO CREATE A MAXIMUM DUST C ONDITION AND SAMPLED FOR AIRBORNE ACTIVITY. ALL RESULTS WERE ABOVE THE ACCEPTED TOLERANCE FOR CONTINUOUS EXPOSURE TO PLUTONIUM.