The Space Radiation Analysis
Group (SRAG) supports the human exploration of space
within acceptable levels of risk from space radiation.
The office will describe, model and monitor the radiation
environment and recommend methods to mitigate the
adverse effects of radiation; and is a key components
of the operational radiation health plan for all U.S.
spaceflights. To fulfill this responsibility, SRAG
provides:
Radiological support during missions
Preflight and extravehicular activity (EVA) crew
exposure projections
Evaluation of radiological safety with respect
to exposure to isotopes and radiation producing
equipment carried on the spacecraft
Comprehensive crew exposure modeling capability
Radiation instruments to characterize and quantify
the radiation environment inside and outside the
spacecraft
Radiation Operations
Support Area
The SRAG Radiation Operations Support Area (ROSA) is
a near replica of the Mission Control Center (MCC) radiation
analysis console position. This area is used for code
development and testing, console operator training,
and real-time support. Major equipment includes: 4-bay
console with 2 DVIS key sets, DEC Alpha workstations,
2 PCs with monitor, PC servers, tape backup system,
uninterruptible power supplies, TV monitor and VCR.
Space Radiation Dosimetry Lab
The SRAG’s Space Radiation Dosimetry Laboratory
operates and maintains the state of the art in analysis
systems for thermoluminiscent dosimeters (TLD), optically
stimulated dosimeters (OSLDs), and plastic nuclear
track detectors (PNTDs). All preflight assembly and
postflight analysis are conducted in the laboratory
as well as crew training sessions for radiation detection
hardware.
