Document Details


Title:
OPERATION DOMINIC, XMAS & FISH BOWL SERIES, PROJ OFFICERS REPORT-PROJECT 4.1 PRODUCTION OF CHORIORETINAL BURNS BY NUCLEAR DETONATIONS & TESTS OF PROTECTIVE DEVICES & PHOTOTROPIC MATERIALS (DELETED)
Subject Terms:
STORAX OPERATION; THERMAL RADIATION; EYES; ANIMALS; SAFETY; BURNS; NUCLEAR EXPLOSIONS; DOMINIC I OPERATION; FISHBOWL EVENT
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:
1965 Mar 30
Declassification Status:
Sanitized
Document Pages:
0235
Accession Number:
NV0051043
Document Number(s):
POR2014EX
Originating Research Org.:
NAVAL MATERIAL LABORATORY, NEW YORK NAVAL SHIPYARD
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
PROJECT 4.1 HAD TWO PRIMARY OBJECTIVES: (1) TO TEST AND IMPROVE METHOD S FOR PREDICTING THE THRESHOLD DISTANCES AT WHICH CHORIORETINAL BURNS WILL BE PRODUCED BY NUCLEAR DETONATIONS, AND (2) TO TEST THE RESPONSE OF AND PROTECTION AFFORDED BY VARIOUS PROTECTIVE DEVICES. PIGMENTED R ABBITS AND MACACA MULATTA PRIMATES WERE USED TO ACHIEVE THE FIRST OBJE CTIVE. THEY WERE EXPOSED, AT TWO DIFFERENT ALTITUDES AND VARIOUS DIST ANCES FROM GROUND ZERO, TO THE RADIANT THERMAL ENERGY FROM FOUR HIGH-A LTITUDE NUCLEAR DETONATIONS AND EIGHT LOW-ALTITUDE DETONATIONS. THE E XPOSED ANIMALS WERE EXAMINED FOR CHORIORETINAL LESIONS, AND THE DISTAN CES AT WHICH LESIONS WERE PRODUCED WERE DETERMINED FOR THE VARIOUS YIE LDS AND ALTITUDES. FOR LOW-ALTITUDE DETONATIONS, RESULTS APPEAR TO AG REE REASONABLY WELL WITH ESTIMATES BASED ON THE APPROXIMATION MODEL. HOWEVER, ADDITIONAL LAORATORY THRESHOLD DATA ARE NEEDED FOR VARYING IM AGE SIZES AND FOR VARIOUS DELIVERY RATES. FIRM CONCLUSIONS MUST AWAIT MORE COMPLETE ANALYSES OF THE DATA. TO ACHIEVE THE SECOND OBJECTIVE THE DEVICES TO BE TESTED WERE EXPOSED, AT THE SAME DISTANCES AND ALTIT UDES AS THE ANIMALS, TO THE RADIANT THERMAL ENERGY FROM THE DETONATION S. A PRELIMINARY EVALUATION OF RESULTS INDICATES THAT THE DEVICESWERE NOT TRIGGERED BY LOW-ALTITUDE DETONATIONS. HOWEVER, THE DEVICES WERE TRIGGERED BY THE HIGH-ALTITUDE DETONATIONS. THIS SITUATION APPEARS T O BE THE RESULT OF THE DESIGN OF THE TRIGGERING SYSTEMS RATHER THAN TH E MECHANICAL FEATURES OF THE DEVICES. THE DATA OBTAINED IN THE ANIMAL AND DEVICE EXPOSURES WERE SUPPORTED AND AUGMENTED BY THERMAL MEASUREM ENTS AT EACH STATION. TOTAL IRRADIANCE VERSUS TIME AND IRRADIANCE IN SELECTED WAVELENGTH BANDS WERE MEASURED. IN ADDITION, MEASUREMENT OF THE DIRECT VERSUS SCATTERED RADIATION FROM THE FIREBALL WAS ATTEMPTED. THERMAL DATA WERE OBTAINED WHICH APPEAR ADEQUATE TO SPECIFY (1) THE THERMAL STIMULI RESPONSIBLE FOR THE RETINAL BURNS, (2) THE PERFORMANCE OF THE EYE-PROTECTIVE DEVICES, AND (3) ATMOSPHERIC TRANSMISSION FACTO RS. TWO MEN ON JOHNSTON ISLAND WERE INADVERTENTLY EXPOSED TO SHOT BLU E GILL TRIPLE PRIME. OPHTHALMOSCOPIC EXAMINATION REVEALED GENERALLY S IMILAR LESIONS IN BOTH PATIENTS WITH EACH PATIENT SUFFERING CHORIORETI NAL DAMAGE BILATERALLY WITH SOME LOSS IN VISUAL ACUITY. THE PATIENTS WERE FOLLOWED CLINICALLY FOR 6 MONTHS TO RECORD THE COURSE OF VISIBLE AND FUNCTIONAL CHANGES. EACH PATIENT SUSTAINED SOME PERMANENT INJURY IN THE FORM OF ABSOLUTE CENTRAL SCOTOMA BILATERALLY. AT 6 MONTHS, ACU ITY WAS 20/25 BILATERALLY IN ONE OF THE PATIENTS AND 20/60 BILATERALLY IN THE OTHER.


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