Induced radionuclides in astronauts Final report, 15 Jun. 1967 - 1 Sep. 1968

Experimental determination of cosmic radiation effects on tissue equivalent materials and human

Determination of the radionuclide content of feces and urine from astronauts engaged in space flight

Measurement of radiation exposure of Apollo 7, 8, 9, and 10 astronauts by determination of radionuclide content of feces and urin

Cosmic ray induced radioactivity in astronauts as a measure of radiation dose /a/

Cosmic ray induced radioactivity in astronauts as measure of radiation dosag

BrainMaker v2.3

BRAINMAKER v2.3 California Scientific Software 10141 Evening Star Drive No. 6 Grass Valley, CA 9594

WordPerfect 5.1 for windows

WordPerfect 5.1 for Windows WordPerfect Corporation 1555 N. Technology Way Orem, Utah 8405

Determination of the radionuclide content of feces and urine from astronauts engaged in space flight

Activation analysis of fecal samples from Apollo 7, 8, 9, and 10 astronauts to determine effects of space flight on mass balance of various elements by human bod

The measurement of radiation exposure of astronauts by radiochemical techniques Quarterly research report, 6 Apr. - 5 Jul. 1970

Radionuclide content in feces and urine of Apollo 7 through 13 astronaut

Radiation Tolerance Tests of Ultrasonic Oxygen Deficiency Sensors

The Large Hadron Collider (LHC), presently under construction at CERN, will contain about 96 tons of high-density helium (liquid and supercritical), mostly located in the underground components of the LHC machine. To detect a dangerous decrease of oxygen concentration in the atmosphere caused by a potential release of helium, the Oxygen Deficiency Hazard Detection system will be applied for the LHC operation in the tunnel and other selected areas. The oxygen concentration is derived on the assumption that the gas added to the air is helium alone. A novel concept of oxygen deficiency detection system, built at the Wroclaw University of Technology (WUT) in Poland, allows verifying the oxygen concentration in the air by means of sound velocity measurements. The paper describes the design and functionality of two prototypes of ultrasonic ODH detection system tested by the WUT. In order to qualify the systems to be used in the LHC tunnel, the stability of ultrasonic transducers and electronics has been checked under radiation in an environment similar to that predicted for the LHC. At the beginning both systems have been tested in TCC2 test radiation zone at CERN. The complementary test, was performed in Institute of Atomic Energy (IEA) in Poland

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