Live Geiger Couter Tokyo

[Ares]

http://www.ustream.tv/channel/geiger-counter-tokyo

[iOWNme]

http://en.wikipedia.org/wiki/Geiger_counter


That link froze my computer twice in a row. it would load the video, play for about 5 seconds, then crash.....FYI.

[Ares]

http://en.wikipedia.org/wiki/Geiger_counter


That link froze my computer twice in a row. it would load the video, play for about 5 seconds, then crash.....FYI.


What browser are you using to view it? I've used IE8 and Firefox with no issue so far.

[sunnyandseventy]

I don't know how to read it, but from my perspective it looked to be increasing for whole minute I was watching.

[Awoke]

The problem is, you don't know what scale it is in.

Gieger counters operate anywhere from 1X to 10,000X, so a big number could mean nothing, or it could mean something substantial. Without knowing what scale it is reading in, it is useless.

[Ares]

CPM is Clicks per minute. Anything from 10-20 CPM is normal back ground radiation. Once you start getting above that, you should start getting concerned.

[vacuum]

The problem is, you don't know what scale it is in.

Gieger counters operate anywhere from 1X to 10,000X, so a big number could mean nothing, or it could mean something substantial. Without knowing what scale it is reading in, it is useless.

Awoke,

Here is the datasheet for the geiger counter. Can you make any sense of it? There is a curve in it and some numbers.

http://strawberry-linux.com/pub/gmkit.pdf

[Awoke]

CPM is counts per minute.

Normal background radition is anywhere from 5 to 30 CPM, but like I said, that scale needs to be known for the counter to be worth anything.

[Awoke]

Vacuum, I can't read Japanese, but it looks like it's just showing how to understand the Gieger reading.

It's just a time VS occurance ratio.

[vacuum]

Oh, the chart title says "Gamma Sensitivity", I thought that would be what you were talking about.

[Awoke]

Gamma radiation is awesome in the sense that it can penetrate almost anything. Water is a good gamma insulator, and therefore so is contrete as it is about 95% water anyways.

So the gieger counter has a mylar film that is gamma sensitive, and when a gamma particle hits the skin like a drum, that is considered one count.

So based on the size of the detector head, and based on the amount of radiation hitting the skin, they can give you a dose rate or a count rate. Typically all gamma friskers like that gieger counter are built to an industry standard, because if the detector head size is increased, you will have more CPM's than on a smaller one. So they build them all about the same size.

I don't know if I am helping you or confusing you. I'm not really with it today. Stayed up to late and got up to early, so I'=m having a hard time staying concise.

[iOWNme]

http://en.wikipedia.org/wiki/Geiger_counter


That link froze my computer twice in a row. it would load the video, play for about 5 seconds, then crash.....FYI.


What browser are you using to view it? I've used IE8 and Firefox with no issue so far.


Using Camino, OSX.....

Just tried it again, seems to be working now.....

[Awoke]

Looks like it is just reading at a 1X scale. I made it more complicated in my mind than I needed to.
It's a digital and I am used to analogs.

[SLV^GLD]

How is it this thing got posted about 5 hours ago and it is only showing a little over 2 hours now?

[sirgonzo420]

so where's the "couter"?


;D

[Awoke]

Channel is offline.

:(

[ShortJohnSilver]

When I checked it out yesterday, it was at 12-13 CPM.... assuming it has not been moved, etc. then the change to 16.8 or so may be seen to be significant in terms of trending, even though it is not enough to worry about at this point.

[Santa]

It appears to be showing normal background levels.