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PacRad Station Design & Purpose www.PacRadStation.net
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| Fukushima is a disaster beyond measure. Modern man
has never been confronted with this level of contamination and it is going
to get worse. Four of six reactors at the Fukushima Daiichi complex
are destroyed with three of the cores melted through and residing under
the plant. Here the ground water continually washes across tons of
extremely radioactive corium material and out to the ocean. Coupled
with this is the failed cooling systems on the spent fuel pools (1, 2, 3
& 4) with emergency makeshift cooling adding more contaminated water
to the sea. The pool structures are continuously assaulted by neutron
flux and ionizing radiation degrading the steel and concrete structures.
Pool 4 is sinking and leaning but any of the wrecked pools can fail.
Another earthquake of significance could do the job! When the
pool comes down many times more radiation will enter the environment. Japan
is toast. The northern hemisphere, especially the west coast of North America,
is down wind, down stream. The only way we can protect ourselves is
by detection and avoidance. The nuclear industry is working hard to keep these facts out of the public awareness. This is not conspiracy theory. We are on our own to determine the level of danger for ourselves. The West Coast did get washed with significant radiation in March 2011 after the reactor containments blew up. Three months later PacRad Station started developing a methodology for monitoring background radiation levels. Although this is pretty much backyard science, the calibration tests demonstrate the ability to detect changes in background levels. From the start the samples include the initial contaminate wave so we have to establish background data going forward. The ocean is contaminated and will start lapping our shores with radiation in the near future. If (when) a fuel pool fails there will be another atmospheric spike. The PacRad detection network is very simple but sensitive enough to record shifts in gamma ray emissions. Review this page: http://www.radiation-watch-san-mateo-coast.com/impact.html These stations use Inspector series handheld Geiger tube detectors mounted in a waterproof box. The detector has a stereo jack on the side that pulses out a signal for each detection event and is wired to a computer serial interface to be counted by a $39 graphing software running in the background. The software depicts data on a graph and a snapshot image of the graph is sent via FTP to the PacRad site in 10 minute intervals. Pulses are averaged to determine Counts Per Minute (CPM). This is the same as taking serial timed samples and logging the results over a 24 hour period. These detectors are sensitive but not very qualitative as deployed in the network. Inspector Geiger counters can read both Alpha and Beta particles entering the tube screen (highly directional) but also Gamma rays that pass through the detector housing into the tube (non directional). Cesium137 has both Beta and Gamma emissions and is the radio isotope produced by man made fission devices (bombs and power plants) and is the pervasive element we are looking for. Once we have established background benchmarks, we can detect shifts from this level. It is gross shifts upwards, 2 to 3 times over background, we are looking for. If a detection over background occurs, then further environmental testing would be required to determine source, distribution and strength. Pacific Coast Radiation Monitoring Network www.PacRadStation.net |
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