|Statement||L.A. Braby ... [et al.] ; prepared for National Aeronautics and Space Administration Lyndon B. Johnson Space Center, order no. T-794H under a related services agreement with the U.S. Department of Energy contract DE-AC06-76RLO 1830.|
|Series||NASA-CR -- 171809., NASA contractor report -- NASA CR-171809.|
|Contributions||Braby, L. A., United States. National Aeronautics and Space Administration., United States. Dept. of Energy., Pacific Northwest Laboratory.|
|The Physical Object|
Develop real-time dosimetry concepts and instrumentation for long-term missions [microform]  Richland, Wash.: Pacific Northwest Laboratory,  Description. Patient-specific instrumentation (PSI) is a computer navigation technology that leverages rapid prototyping as a way to remove traditional computer navigation from the surgical process. challenging task in radiation therapy dosimetry is verifying the skin dose in breast, and head and neck treatments. Verification requires dosimetry at the depth of the epithelial layer of skin, i.e. about mm, this limits the choice of detector suitable for such a measurement as packaging becomes a key issue. Real time dose verification for. Given the known occurrence of solar particle events (SPE) and the inability to predict their occurrence, there is a possibility the crew will suffer from acute radiation sickness (ARS) with the highest likelihood of prodromal symptoms of nausea, vomiting, and fatigue as well as skin damage, and potential hematological/immune changes resulting in LOM if adequate shelter .
Long-term crewed spacecraft and habitats, such as the International Space Station, are so complex that a significant portion of the crew's time is spent keeping it operational even under nominal conditions in low-Earth orbit, while still requiring significant real . Passive dosimetry methods continue to provide the most relevant data, but often require extensive processing after returning to Earth. Active detectors can provide time-resolved data in real time, but size and power consumption prevent Cited by: Army Radiation Protection and Safety Programs in Light of Civilian Standard Practices and Recommendations for Improvement The previous chapters have described the potential adverse health consequences of radiation exposure, have outlined currently accepted methods for limiting those consequences, and have described current U.S. Army approaches. Dosimetry on the spacelab missions IML1 and IML2, and D2 and on MIR Radiation is an acknowledged primary concern for manned spaceflight and is a potentially limiting factor for long-term orbital missions and for interplanetary missions. Results from numerous spaceflight exper- iments demonstrate heightened radiation levels compared to the Cited by:
A review of instruments and methods for dosimetry in space Article in Advances in Space Research 47(4) February with 66 Reads How we measure 'reads'. Suggested Citation:"A Reports of the Working Groups."National Research Council. Space Radiation Hazards and the Vision for Space Exploration: Report of a gton, DC: The National Academies Press. doi: / Real time ethylene monitoring would allow more judicious use of ethylene removal for controlling plant growth, and save on consumables. NASA seeks a miniature, sensitive (25 ppb), real time or near-real time sensor to monitor ethylene in plant growth environments for space. References Abeles, F.B., P.W. Morgan, and M.E. Saltveit. the concepts of LEVEL I and LEVEL II work as designated in C, Maintenance Levels. Buildings and structures, related systems, or equipment replaced during the life of this Contract become the responsibility of the Contractor to maintain in the installed condition.