Document Details


Title:
OPERATION TUMBLER, PROJECT 1.9, PRE-SHOCK DUST, REPORT TO THE TEST DIRECTOR
Subject Terms:
TUMBLER OPERATION; TUMBLER-SNAPPER OPERATION
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:
1952 Oct 31
Declassification Status:
Declassified
Document Pages:
0095
Accession Number:
NV0006298
Document Number(s):
WT519
Originating Research Org.:
ARMY CHEMICAL CORPS
OpenNet Entry Date:
1994 Aug 26
OpenNet Modified Date:
2003 Sep 18
Description/Abstract:
THE OBJECTIVE OF PROJECT 1.9 WAS TO DETERMINE THE CONCENTRATION AND TH E PARTICLE SIZE DISTRIBUTION OF THE PRE-SHOCK DUST GENERATED FROM THE SURFACE OF THE GROUND BY AIR CURRENTS RESULTING FROM THE INCIDENCE OF THERMAL RADIATION ON THE SURFACE OF THE GROUND. CASCADE IMPACTORS AND FILTER SAMPLERS WERE USED TO SAMPLE PRE-SHOCK DUST FOR THE BRIEF PERI OD OF TIME BETWEEN THE TIME OF DETONATION AND THE ARRIVAL OF THE SHOCK WAVE AT THE STATION. THE FOLLOWING CONCLUSIONS ARE DRAWN: 1. THE PR ESENCE OF PRE-SHOCK DUST IN CONCENTRATION OF FROM TEN TO SEVERAL HUNDR ED TIMES BACKGROUND HAS BEEN ESTABLISHED. 2. THERE WAS NO SIGNIFICAN T DIFFERENCE BETWEEN THE PARTICLE SIZE DISTRIBUTION OF PRE-SHOCK DUST AND BACKGROUND DUST. 3. LITTLE VARIATION IN DUST CONCENTRATIONS FROM SHOT TO SHOT WAS SHOWN.


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