Japan Earthquake

Japan Earthquake | Page 1360

@Edano - off topic I know but it was a very straightforward system - 4 farthings to a penny, 12 pennies to a shilling, 20 shillings to a pound. What could be simpler than that?
by hudebnik 5/24/2011 1:05:00 PM

Good question -- maybe a bit of "lava flow", stuff moving near the sensor.
by Markfm 5/24/2011 1:05:37 PM

My crazy theory about the big rad spike in #1 drywell -- corium passing by the sensor on its way down to somewhere else. Hole is now plugged for the moment.
by bojack54 5/24/2011 1:05:48 PM

As a Czech friend once said, "you English must be so clever to understand something like that"
by hudebnik 5/24/2011 1:05:57 PM

Latest #1 drywell reading is 1.92E+02 = 192 Sv/hr
by hudebnik 5/24/2011 1:07:40 PM

slapping my frying pan on a stack of corium,,, 2 eggs scrambled, and my corium flakes ,, breakfast of champions... so.. anything new @ all
by dean 5/24/2011 1:08:15 PM

@hudebnik It could just be bum readings, couldn't it? After all, they had the drywell and suppression chamber mixed up yesterday.
by bojack54 5/24/2011 1:08:26 PM

Which reminds me I need to go and cook lunch - back later.
by hudebnik 5/24/2011 1:08:26 PM

@hudebnik Wait, you go back to 200 Sv/h and leave?
by Rob in SF 5/24/2011 1:09:04 PM

@dean, we are gawking at this: images.scribblelive.com
by bojack54 5/24/2011 1:09:19 PM

@bojack - I think for a change the interpreter of that graph got mixed up, for once Tepco's readings are quite consistent www.tepco.co.jp
by hudebnik 5/24/2011 1:10:04 PM

hmmm bo, checking it ou.. looks like somebody fell asleep a the pen .. ooopsie..
by dean 5/24/2011 1:10:05 PM

24 May 6:00 DW CAMS B says 31 Sv/hr. I only saw the big spike on #1 Sunday.
by Markfm 5/24/2011 1:11:18 PM

@markfm then it spikes again at 0800 and 1100 www.tepco.co.jp
by hudebnik 5/24/2011 1:12:24 PM

So, is the graph point wrong on the 24th, and the spike is still up at 200? Back to yikes?
by Rob in SF 5/24/2011 1:12:37 PM

@markfm - you're our data expert, what's your view?
by hudebnik 5/24/2011 1:13:18 PM

Best I can tell the readings went way up, on the period surrounding 22 May 12:00, then dropped down again by 23 May 6:00. The 24 May reading that I see is consistent with the drop back down into the 30s. Dean likely has better insight, to me this is similar to what we see in #2, periodic big rises, then big drops, in DW CAMS B readings. I was thinking some kind of flow/scabbing process going on, things periodically get "stuck" near the B instrument, wherever it is located, then flush away.
by Markfm 5/24/2011 1:16:16 PM

Reading goes high, TEPCO sends in a worker with a big hammer to smack the side of the DW near the instrument, break off the stuck glob :)
by Markfm 5/24/2011 1:18:46 PM

may I ask.. who put the graph out.. at this point in time sure makes me wonder where the source of data is... definitely
a spike tho
by dean 5/24/2011 1:20:25 PM

The graph is consistent with what I see from the NISA daily releases. Probably from the data at TEPCO (they sometimes have more data points than I capture at NISA).
by Markfm 5/24/2011 1:23:41 PM

Markfm... good point.. it sure makes me with I knew the exact locations of those instruments, looked what kind they are... and knew what CAMS stood for.. if it's constant air monitor for what I'm used to the have little filters for air intake that have to be change.. but,, they read out in counts per minute.. if the unit is a geiger meuler and they are high range ones to withstand huge rad spikes then perhaps the data is real and they just show some change or movement like has been mentioned ..
by dean 5/24/2011 1:23:53 PM

@Markfm You mean the sensor by the "Drywell Containment Atmosphere Monitoring (CAM) isolation valves"? Those had stroke-time issues during the Nine Mile incident. :^0

pbadupws.nrc.gov
by Rob in SF 5/24/2011 1:24:59 PM

So it's gone swooping up again. 5/24 0500 3.05E+01 is the one I see at NISA. The two later, high, data points on 24 May I haven't run into yet (not disagreeing with them -- NISA sometimes just does one output report in a day).
by Markfm 5/24/2011 1:25:50 PM

seems to coincide with activities they were doing at nite that we didn't see then fall off for the day
by dean 5/24/2011 1:26:14 PM

CAMS(Containment Atmospheric Monitoring System). At least that's what I see referenced.
by Markfm 5/24/2011 1:27:36 PM

I wonder if there is some sort of liquid mass floating around past the detector once in awhile.. just thinking outside the box..
by dean 5/24/2011 1:27:41 PM

@markfm - this page www.tepco.co.jp is a goldmine with stuff that doesn't always seem to get into the English pages. Google will tx the titles of things perfectly accurately and Tepco (bless) actually use a logical sequence to identify each data sheet.
by hudebnik 5/24/2011 1:29:35 PM

Is the reactor data still ported into a Google Spreadsheet somewhere? Because there's a Google Gadget called Gauges that can visualize all the data on little mechanical gauge representations, which would be pretty darn cool embedded in a web page...
by Rob in SF 5/24/2011 1:33:46 PM

OK I'm away for a while. @markfm @dean (and anyone else) I'd appreciate your views on my account of the strange flash phenomena fukushimafaq.wikispaces.com as there seems as if there might be a correlation between the strange overnight observations and the high rad peaks.
by hudebnik 5/24/2011 1:34:53 PM

@rob - the data is available on the Tepco data page in CSV form
by hudebnik 5/24/2011 1:35:35 PM

www.canbelerra.com more about CAMS
by dean edited by lillymunster 5/24/2011 1:36:06 PM

@dean I found this article on the first TMI "quick look" fascinating:
www.inl.gov
by Rob in SF 5/24/2011 1:36:10 PM

@Dean and @Rob...on that theory, what would happen if dripping corium fell into a stream of running water, would it move as a single entity or would it disperse through the water or perhaps a different result?
by Thunder 5/24/2011 1:37:39 PM