Document Details
Title:
OPERATION HARDTACK-PROJECT 2.4: NEUTRON FLUX AND LARGE-YIELD BURSTS (DELETED)
Author(s):
KINCH, J W [UNITED STATES ARMY - DEPARTMENT OF]; RIGOTTI, D L [UNITED STATES ARMY - DEPARTMENT OF]; ANDERSON, J [UNITED STATES ARMY - DEPARTMENT OF]; BAIN, R L [UNITED STATES ARMY - DEPARTMENT OF]; RUGHEIMER, J H [UNITED STATES ARMY - DEPARTMENT OF]
Subject Terms:
HARDTACK I OPERATION; YELLOWWOOD EVENT; WALNUT EVENT; NEUTRONS; RADIATION FLUX; MEASURING METHODS; CALCULATION METHODS; RADIATION DETECTION; GOLD 197; SULFUR 32; ZIRCONIUM; PLUTONIUM 239; NEPTUNIUM 237; URANIUM 238
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:
1960 May 16
Declassification Status:
Sanitized
Document Pages:
0034
Accession Number:
NV0051069
Document Number(s):
WT1622EX
Originating Research Org.:
UNITED STATES ARMY - DEPARTMENT OF
OpenNet Entry Date:
1994 Aug 26
OpenNet Modified Date:
2003 Sep 18
Description/Abstract:
THE OBJECTIVES OF THIS PROJECT WERE TO MEASURE NEUTRON FLUX AND DOSE A S A FUNCTION OF DISTANCE FOR TWO [ ] DETONATIONS AND TO PERFOR M NEUTRON-FLUX AND DOSE MEASUREMENTS AS REQUIRED BY OTHER DEPARTMENT O F DEFENSE AGENCIES. THE HURST FISSION-FOIL METHOD WAS USED TO MEASURE FLUX. GOLD 197, PLUTONIUM 239, NEPTUNIUM 237, URANIUM 238, SULFUR 32 , AND ZIRCONIUM 90 WERE EMPLOYED AS DETECTING MATERIALS. STEEL BUOYS WERE USED TO SUPPORT THE DETECTING MATERIALS IN THE ENIWETOK LAGOON. TWENTY-FIVE STATIONS WERE PLACED AT DISTANCES VARYING FROM 917 YARDS T O 4,100 YARDS FOR TWO LARGE-YIELD DEVICES. NEUTRON DOSE WAS CALCULATE D FROM THE MEASURED FLUXES BY USING THE SINGLE-COLLISION THEORY OF DOS E CONTRIBUTION PER NEUTRON. LIMITED NEUTRON FLUX AND DOSE MEASUREMENT S WERE MADE AS A FUNCTION OF DISTANCE FOR [ ]SHOT (YELLOWWOOD) A ND [ ]SHOT (WALNUT). [ ] NEUTRON FLUX AND DOSE MEASUREMENTS WERE MADE IN SUPPORT OF PROJECTS 6.3 AND 8.6. THE DOSE MEASURED FOR SHOT YELLOWWOOD [ ] WAS NOT IN AGREEMENT WITH T HE VALUES PREDICTED BY TM 23-200 FOR FUSION WEAPONS. THE DOSE MEASURE D FOR WALNUT [ ] WAS LOWER THAN THE PREDICTED VA LUES FOR FISSION WEAPONS BY A FACTOR OF [ ] WHICH IS WITHIN TH E LIMIT OF ERROR SET BY THE MANUAL. THE BUOY SYSTEM OF PLACING PASSIV E DETECTING MEDIA OVER WATER IS EFFECTIVE IN AREAS WITH OVERPRESSURES UP TO [ ] AND CAN BE MADE EFFECTIVE IN OVERPRESSURES UP TO [ ] BY MINOR MODIFICATION.