Roger J. Cloutier

Dose to the fetus from radionuclides in the bladder.

Abstract A geometric model that takes into account the changes in size, shape arid position of the uterus during pregnancy has been designed for calculating the radiation dose to the uterus and the fetus from a radionuclide in the mothers bladder. The bladder is assumed to fill at a constant rate to 300 ml before voiding. The average dose in rads per photon emitted from a source in the bladder during one bladder filling has been calculated for monoenergetic photons of 0.02, 0.03, 0.05, 0.1, 0.2, 0.5, 1.0, 1.5, 2.0 and 4.0 MeV. Since the dose to specific organs of the fetus could not be calculated, the fetal space was divided into 12 compartments. The dose was calculated for each compartment, for the average of the entire fetal space, and for the uterus. The average dose per photon to each compartment decreases as the fetus increases in size. The highest dose rate to the uterine wall occurs at the point where it touches the bladder. Because the uterus enlarges, the point on the uterus receiving the highest dose rate changes during pregnancy.

A history of medical internal dosimetry.

This paper presents a short history of the development of medical internal dosimetry. It reviews the evolution of the equations and discusses the development of various mathematical models used to improve radiation absorbed dose estimates. The contributions of Leonidas Marinelli, Edith Quimby, William Mayneord, Robert Loevinger, Walter Snyder, and others are emphasized.

Effect of stable scandium on the long-term whole body retention of intravenously administered 46Sc citrate in the rat.

The effect of stable scandium on the whole-body retention and tissue distribution of

Radiation dose to the lungs from ventilation studies with 133Xe.

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Interfacing a multichannel analyzer to a minicomputer

Sc (T/sub

Jack C. Greene 1921-2001

sup 1

CALCULATING THE RADIATION DOSE TO AN ORGAN.

/

Whole-Body Retention of 67Ga-Citrate

sub 2

Florence Kelley and the Radium Dial Painters

= 84 days) has been studied in the rat. In one group of animals high specific activity

Personnel monitoring with film and thermoluminescent dosimeters for high exposures

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