THE MEASUREMENT OF RADIATION EXPOSURE OF ASTRONAUTS BY RADIOCHEMICAL TECHNIQUES October 6,1969 Through January 4, 1970 (open access)

THE MEASUREMENT OF RADIATION EXPOSURE OF ASTRONAUTS BY RADIOCHEMICAL TECHNIQUES October 6,1969 Through January 4, 1970

The urine and feces specimens from the Apollo 11 mission were analyzed for their radionuclide content. Estimates of cosmic radiation dose received by the astronauts were difficult to determine due to decay of the short-lived radionuclides during quarantine. The concentrations of {sup 7}Be, {sup 22}Na, {sup 40}K, {sup 59}Fe, {sup 60}Co, and {sup 137}Cs were determined. No {sup 147}Pm was observed in any of the samples. The concentrations of 16 major, minor, and trace elements were determined in fecal samples from Apollos 8 and 10. Large discrepancies between the excretion rates and normal dietary intakes were noted for cobalt, iron, tin , and potassium. An interpretation of the hazards these deviations may produce requires the determination of the elemental concentrations of the foodstuffs used during these missions. The fecal samples from the Apollo 11 mission were analyzed for glass fiber content. One anomalous sample was observed having a glass fiber content twofold greater than any previously measured specimen. A piece of the outer thermal coating of the Apollo 12 spacecraft was analyzed for cosmic-ray-induced radioactivity. Beryllium-7 was observed .
Date: January 15, 1970
Creator: Brodzinski, R. L.; Rancitelli, L. A. & Haller, W. A.
System: The UNT Digital Library
Reactor outage schedule (tentative) (open access)

Reactor outage schedule (tentative)

None
Date: January 15, 1970
Creator: Walton, R. P.
System: The UNT Digital Library
Facility modification logic procedure. Preliminary draft. Project 223 (open access)

Facility modification logic procedure. Preliminary draft. Project 223

None
Date: January 15, 1970
Creator: unknown
System: The UNT Digital Library