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Letters Received to A. Roeder, June 3, 1924

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June 6, 1924. Dr. Francis D. Donoginie, Department of Industrial Accidents, State House, Boston, Mass. Dear Sir:- We do not bolieve that Radium burns could occur from handling commercial self-luminous material. Products of this lcind are handled in small quantities and the amount of Radium contained is minute. Ordinary commercial grades used on watches, clocks, etc. contain only a few cents worth of Radium per watch or clock. Radium burns occur from handling concentrated Redium salts. It is conceivable to visualize a very large quantity of Radium Imminous Material containing 100 Mg. or 200 Mg. or more milligrems of Radium that would cause a burn if it were concentrated in one place and some one was held in close contact with It for a considerable period of time. Even then the diffusion might be too great to cause a concentrated effect. The intensity of Radium rays diminishes inversely as the square of the distance so that for therapeutic work highly concentrated salts are now generally packed in the smallest possible containers and inserted directly into the tissue. If when writing your letter of June 3 you had in mind a particular case of Radium burn or burn of unknown origin, tre should be glad to have the particulars. Yours truly, President. ARoeder-HM

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2
Source index
0
Type
document
Media ID
19f0f552d00c5044
Size
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    "ocrText": "June 6, 1924.\nDr. Francis D. Donoginie,\nDepartment of Industrial Accidents,\nState House,\nBoston,\nMass.\nDear Sir:-\nWe do not bolieve that Radium burns could occur from handling\ncommercial self-luminous material. Products of this lcind are handled in\nsmall quantities and the amount of Radium contained is minute. Ordinary\ncommercial grades used on watches, clocks, etc. contain only a few cents\nworth of Radium per watch or clock.\nRadium burns occur from handling concentrated Redium salts. It\nis conceivable to visualize a very large quantity of Radium Imminous Material\ncontaining 100 Mg. or 200 Mg. or more milligrems of Radium that would cause\na burn if it were concentrated in one place and some one was held in close\ncontact with It for a considerable period of time. Even then the diffusion\nmight be too great to cause a concentrated effect. The intensity of Radium\nrays diminishes inversely as the square of the distance so that for therapeutic\nwork highly concentrated salts are now generally packed in the smallest\npossible containers and inserted directly into the tissue.\nIf when writing your letter of June 3 you had in mind a particular\ncase of Radium burn or burn of unknown origin, tre should be glad to have the\nparticulars.\nYours truly,\nPresident.\nARoeder-HM"
}