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Radiation Detection 27th March 2018 - Printable Version

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Radiation Detection 27th March 2018 - vital1 - 03-27-2018

Yesterday morning the GammaScout Geiger counter started to alarm on and off very quickly.

Detection Location

[Image: Australian-Map.jpg]

One visual observation showed a spike of 0.625 uSv/hr. Looking at all the very short duration high detections I have been seeing recently, it suggests to me that I am detecting lots of hot particles in the atmosphere. If I didn't have 60 second sampling and a 0.30 uSv/hr alarm setting in place I would probably have missed these detections. They would have been hidden in the averages, because they are of such short duration.

Are these hot particles originally from Fukushima?

Has enough Northern Hemisphere and Southern Hemisphere air mixing occurred so that I am now detecting more hot particles here when the weather conditions air right?

Is there another source?

Any of you have any other suggestions?

Have a look at all the charts and wind direction information below.

The day average was 68% above average.


[Image: Caloundra-local-average-background-radia...h-2018.jpg]


The 24hr 60 second logging chart shows numerous short duration peaks between 8.30 am and 11.30 am.

[Image: Caloundra-24-hour-chart-270318.jpg]

Radon levels where relatively low.

[Image: ThereminoGeiger_2018_03_27_21_16_00.png]

The wind direction at the time was South Easterly, off the Pacific Ocean! It was an overcast but fine day.

https://earth.nullschool.net/#2018/03/27/0600Z/wind/surface/level/orthographic=-192.66,-35.51,1343/loc=146.465,4.276


RE: Radiatin Detection 27th March 2018 - Horse - 03-27-2018

Quote:Are these hot particles originally from Fukushima?

Has enough Northern Hemisphere and Southern Hemisphere air mixing occurred so that I am now detecting more hot particles here when the weather conditions air right?

Is there another source?

Those are disturbing peaks in your data.  Fuku particles will be in the air for a long time as they drift around.  MVB has noted recent detections over Europe; source remains undisclosed.  Could volcanic eruptions be causing these spikes?  I think it may have taken this long for air mixing to occur and you're detecting some of the radioactive particulates we have floating around in the northern hemisphere.


RE: Radiation Detection 27th March 2018 - vital1 - 03-27-2018

Horse,

"I think it may have taken this long for air mixing to occur and you're detecting some of the radioactive particulates we have floating around in the northern hemisphere."

Yes, I think that is the most logical explanation at present. The source is very unlikely to be a volcanic eruption.



RE: Radiation Detection 27th March 2018 - Horse - 03-27-2018

Is there a chance you could capture some of these hot particles? Don't they just use a volumetric collector; a fan passing air thru a filter and test the filter? Would be nice if we could find out what it is you're detecting.


RE: Radiation Detection 27th March 2018 - stock - 03-28-2018

(03-27-2018, 10:12 PM)Horse Wrote:
Quote:Are these hot particles originally from Fukushima?

Has enough Northern Hemisphere and Southern Hemisphere air mixing occurred so that I am now detecting more hot particles here when the weather conditions air right?

Is there another source?

Those are disturbing peaks in your data.  Fuku particles will be in the air for a long time as they drift around.  MVB has noted recent detections over Europe; source remains undisclosed.  Could volcanic eruptions be causing these spikes?  I think it may have taken this long for air mixing to occur and you're detecting some of the radioactive particulates we have floating around in the northern hemisphere.

Dont forget the testing of Russia nuke powered missiles.   These are open air reactors which dump directly to atmosphere, and a few have also crashed.    Not likely to get to south hemi so fast, but who knows what route they flew.


RE: Radiation Detection 27th March 2018 - Horse - 03-28-2018

Good point Stock, how could I forget another secret source of contamination.  The new Russian nuclear powered missile testing was said to be near the Arctic and might have been some of MVB's detections.  So many point sources to consider but Fuku was a large dump into the air.  Officials say it was mostly volatiles that escaped from Fuku to try and minimize the risks from cesium, strontium, U2 and Pu.  There is some mixing of air between the hemispheres.  Vital probably should be detecting some of Fuku's hot particles.  I was just curious if we could pinpoint what hot particles Vital detected.  The nuclear cabal has it easier here in the north hiding on-going radioactive contamination than they do in containing it. They don't make it easy when you consider the state of the Radnet system.  We will get no warning or confirmation of radioactive contamination from them.


RE: Radiation Detection 27th March 2018 - vital1 - 03-31-2018

Pia,

At the time we had one low pressure system sitting off the East coast plus another in North Queensland, look at wind map link below. The wind map shows the local air mass at the time coming off the Pacific Ocean. The main source appeared to be a high pressure system situated East of New Zealand. The air from this high was being drawn into the two lows. My present theory is that contaminated air was drawn down from the upper atmosphere to the surface by this high pressure system. Still, the Northern and Southern hemisphere air mixing you pointed out could also be part of this dynamic.

The wind direction at the time was South Easterly, off the Pacific Ocean! It was an overcast but a fine day.

https://earth.nullschool.net/#2018/03/27/0600Z/wind/surface/level/orthographic=-192.66,-35.51,1343/loc=146.465,4.276