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X-RAYS: Electromagnetic radiations ¢7 igh energysien wavelenethe
shorter than those in the ultraviolet region.*
. YIELD (OR ENERGY YIELD): The totaleffectivy eneray released in sjnuclear

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(or atomic) explosion. 5 U¢ in usually expressed in terms of the equivalent

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tonnage of TNT required to produce the same energy release in an expiosion.

The total energy yield js manifested as nuclear radiation, thermal radiation,
and shock (and blast) energy, the actual distribution being
deperdent upon
the medium in which the explosion occursAprimarily) ana “e upon the type

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ACKNOWLEDGEMENTS

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“The author is deeply gratefulte‘the followhny for their ex.”

pert-adyice and usristance,“Apy:ehortcumings in this pam{i

ey . ofweapon and the Hime shar detonation, ©

:phiet,. however, are aulely! thesresponsibitity of the author. *
- Appreciation is expressed especially'to Dr. Roy [), Maxwell for |?
‘ahis generous assistance and to, Mrs. Edith Ji. Meyers for her!4
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typing ofthe manuscript.
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J Atemie nergy Cam misaine

Mr, Robert &. Alien

Dr. H. David Bruner

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‘bo Apwokhaven National faboratory “4

Dr. Robert A.Comurd

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_Dr. Charles L. Dunham
Soaeg. My. Hugh W. Chureh
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* Mr. Richard Hamburger “* + - DEThomas R. Coun, dre oa
Dr. John H. Harley
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