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WEBCAM March 2017
#21
Quote:HillbillyHoundDog
March 15, 2017 at 2:46 pm • Reply
@Horse. … @1:09, is this art?
https://www.youtube.com/watch?v=xDC-iuT8Og0
Cobalt-60 gamma source irradiation …
…the source will slowly start emerge from its lead shielding.
The effects of the irradiation were observed on CCD chip. Direct gamma ray impacts and of the blue Cherenkov radiation from a water bottle, located directly at the source are visible. The glass lens of the camera cannot focus the gamma rays, so bright pixels appear all over the image frame.
The movie was recorded by OLYMPUS XZ-1 camera with a CCD chip. Maximum gamma dose rate at camera position was approximately 100 mGy / minute, while the dose rate at the position of the water bottle is almost 1000-times higher, approximately 90 Gy / minute.
The video compression on Youtube washed away a lot of the speckling detail, but the final footage still preserves most of the observable information.

@HHD … @0:49 first spark.  Quick count of 8 sparks to 0:50.  Counts to 0:55 comparable to ISS gamma storm.   By the time it gets to 1:00, I’m seeing the red and blue blobs.  It begins to look like the paint splatter that passes for modern art.  A hundred million sparks a minute, not that I counted.  They probably put the glass of water in front of the source so as not to blow out the CCD chip with 1000 times more 'hundred millions' of sparks a minute.   Quick, shield that source; don’t let it out of containment; that will just ruin selfie’s.  Source, distance, and time define a radiation dose.  The tepcams are far away from the reactors but closer than the monitors on NETC.  The tepcams are only seeing about 17 sparks and hour on cam1 at last count and a guess of a few per night on cam4.  

NETC.COM   © 2014
Station ID 6:2132510771   Fukushima Dai-ichi MP-4, Fukushima, JP
Click here for data charts
nSv/h: current 1887 Low 1788 High 2113
Average 2035
Last updated: 2017-03-26 14:50:00 GMT-0600

NETC.COM   © 2014
Station ID 6:136100005   Fukushima Dai-ichi MP-5, Fukushima, JP
Click here for data charts
nSv/h: current 1294 Low 1122 High 1457
Average 1409
Last updated: 2017-03-26 14:50:00 GMT-0600

Wiki -Cobalt-60, 60Co, is a synthetic radioactive isotope of cobalt with a half-life of 5.2714 years. It is produced artificially in nuclear reactors. Deliberate industrial production depends on neutron activation of bulk samples of the monoisotopic and mononuclidic cobalt isotope 59Co.

The cobalt-60 video was a good representation of gamma sparking.  About half of the CO60 remains from the initial meltdowns unless more is still being created and escapes.  A bit of gamma still strikes the tepcams.  

A search for '100 mgy dose' brought up this reminder from Ian Fairlie.  
http://www.ianfairlie.org/news/a-100-msv...n-effects/

Hi Chasaha, Saw your post, they shutdown Radnet again.  That certainly makes radiation invisible.  Hope a cloud isn't passing thru.  

03-27 am snowing on the tepcams, real snow.  Saw a crane tool above r1 but couldn't tell which one or what it was going to do.  Heavy snow seems to have stopped remote crane work.
"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
Reply
#22
Question 
So... does anyone know what the structure being built at R2 is for?
Is it a sarcophagus?

I know a reactor containment vessel, like this one, is located just inside that wall.  
August 2012 - note the sign on it's side.
   


Apologize if I'm playing catch up.  Wink
 
Reply
#23
(03-27-2017, 10:54 PM)Chasaha Wrote: So... does anyone know what the structure being built at R2 is for?
Is it a sarcophagus?
Apologize if I'm playing catch up.  Wink

It looks to me like what they built off of r4.  The elevator on the external wall of r2 gives them access to the upper part of the reactor building where the spent fuel pool is.  The platform is a staging area for workers to be somewhat protected from the high radiation inside r2.  When they get to the fuel removal it will block the view of the defueling efforts just like they did with the extension on r4.  If the r2 sfp area wasn't as damaged as the other reactors, they might be able to effect repairs and rig remote control of the existing fuel crane over the pool.  Defueling the pools is a priority; r3 looks stalled and r1 has yet to clear rubble.  What could they do with the core melts if they find them?  I doubt that Japan will ever build a sarcophagus because all the emissions flow away from Japan.  When will they isolate the port from the ocean?  When the rest of the world catches up to what Fuku is doing to the ocean, to us, will Japan apologize?  Ha, no, they want to force people to live with the contamination, show off with an Olympic Game, and smile like they do.
"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
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#24
Noticing heavy yellow emissions on cam1, R1/R2 last two days. Not sure it's a filter but I think we've seen this color saturation in the past. Another hot spot seems to be on cam1 under R2 platform. New vertical line of lights below seen on both cams. Very colorful morning reflecting off the lights.
   
Tilt screen for full effect.
   
   
   

 
Reply
#25
Hey Chasaha, no apologies needed, let’s play catch up.  Nice grab of r4's containment vessel lid.  Glad that you and Califnative post and add some colorful pictures.  You know I’m a lousy slow typist; probably why I like pics.  Pia, good to see you working that Mac again.  I’ve been wandering off to Cass and ENE trying to keep up too.  Tepco's been busy.  They've started to remove the top outer framework from r1.  They installed a new superstructure over r3.  I have more pics to post but I’ll start with some sparks.

Spark report

03-28 183116 spark.bmp
03-28 183441 spark.bmp
03-28 183806 spark.bmp
03-28 183828 spark.bmp
03-28 184421 spark.bmp
03-28 184456 spark 3f.bmp
03-28 184525 spark.bmp
03-28 184607 spark.bmp
03-28 184700 spark.bmp
9 sparks

03-28 190314 spark.bmp
03-28 190423 spark.bmp
03-28 191031 spark.bmp
03-28 191320 spark.bmp
03-28 191529 spark.bmp
03-28 191704 spark 1f.bmp
03-28 192550 spark double.bmp
03-28 192836 distortion.bmp
03-28 192839 distortion end.bmp
7 sparks, 1 distortion

03-28 193036 spark.bmp
03-28 193101 spark.bmp
03-28 193332 spark.bmp
03-28 193644 spark.bmp
03-28 194058 spark.bmp
03-28 194627 spark.bmp
03-28 195022 spark.bmp
03-28 195104 spark.bmp
03-28 195213 spark.bmp
9 sparks

03-28 200020 distortion.bmp
03-28 200023 distortion end.bmp
03-28 200140 spark.bmp
03-28 200331 spark.bmp
03-28 200436 spark.bmp
03-28 200706 distortion.bmp
03-28 200708 distortion end.bmp
03-28 201719 distortion.bmp
03-28 201721 distortion end.bmp
03-28 202521 spark.bmp
5 sparks, 3 distortions

03-28 204052 spark.bmp
03-28 204244 spark.bmp
03-28 205112 spark 3f.bmp
03-28 205228 spark.bmp
03-28 205433 spark.bmp
5 sparks

Pic
03-28 192550 spark double
   
"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
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#26
Here’s the crane tool that’s being used in removing the steel girders from the top of r1.  I think another crane is assisting with the work.  

Pics
03-29 084100 crane tool
03-29 090552 crane tool
03-29 095016 crane tool
   
   
   
"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
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#27
Two cam1 grabs showing another spray tool entering r1.  On the right over r3 the superstructure is being installed.  

Pics
03-30 105034  r3 crane
03-30 110229  r3 crane r1 steam
   
   
"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
Reply
#28
Let's look at that picture of steam inside r1.  The tool on the crane just looks like the top part that holds other tools.  The crane looks more like it drops on the outside of r1.  No other visible cranes and can't see what's really causing the steaming.  I wasn't paying much attention to cam1 because cam4 was showing the superstructure being installed and workers moving about.  I was trying to show the r3 activity on both cams and caught the very brief steam release.  The cam4 pictures weren't very clear with bad lighting and zooms just blurred things.  A video clip would show the worker motion but not much else. I'll get more pics up, start a new month, but I just wanted to clarify that quick observation was made in haste.  I can't say what caused that particular steam event.  It didn't last very long.
"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
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#29
03-30 11:00 Video of the steam event. This one doesn't look like the spraying they've been doing.  I haven't seen sunlight do that before.  Notice how the light starts then steaming.  The crane comes down about half way thru the video in front of r1.  The light brightens again; steaming then it goes dark.  It's a little long but it was unusual activity happening in r1.  

Total time 6:20



"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
Reply
#30
Hi Horse - great video on R1. I've ascertained the spraying is shooting inside R1 from a nozzle on the outside wall (ocean side) half way between the middle and top part of the frame.  Towards the end of the video you can see a white spot from where it's coming from. First time I've seen this happen, great catch. 

Mid-and-Long-Term Roadmap towards the Decommissioning of TEPCO's Fukushima Daiichi Nuclear Power Station Units 1-4
http://www.meti.go.jp/english/earthquake...1fafd7b417

Here is a pdf dated January 2016 Roadmap outlining the decommissioning of R1, R2, R3. (February 24, 2017)
http://www.meti.go.jp/english/earthquake...0126_e.pdf

It hard to imagine there are still spent fuel rods in all three units:
R1 Spent Fuel Pool = 392 Dismantle 2020. They are trying to reduce the water injection. Your video shows it happening.
R2 SFP = 615 dismantle 2020. I'm not sure they mention installing the platform in this document.
R3 SFP = 566 dismantling 2017. Page 12 shows R3 cover for fuel removal. 
R4 SFP = 1331 removed 2014 (supposedly)

Here is a comparison on cam1/cam4 showing a tool hanging over R3. You can see the new R3 structure on cam1 too. 
   

http://ndf-forum.com/about_en.html
July 2, 3, 2017 - NDF will hold The 2nd International Forum on the Decommissioning of the Fukushima Daiichi NPS to listen to the local voice and provide them with easy to understand information on the decommissioning of the Fukushima Daiichi NPS as well as widely share the latest progress on the decommissioning work and technical outcome with Japanese and foreign experts. 

 
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#31
Thanks Horse & califnative!
Pia
just pm me if needed.
 
Reply
#32
(04-03-2017, 06:13 PM)califnative Wrote: Hi Horse - great video on R1. I've ascertained the spraying is shooting inside R1 from a nozzle on the outside wall (ocean side) half way between the middle and top part of the frame.  Towards the end of the video you can see a white spot from where it's coming from. First time I've seen this happen, great catch.

It hard to imagine there are still spent fuel rods in all three units:
R1 Spent Fuel Pool = 392 Dismantle 2020. They are trying to reduce the water injection. Your video shows it happening.
R2 SFP = 615 dismantle 2020. I'm not sure they mention installing the platform in this document.
R3 SFP = 566 dismantling 2017. Page 12 shows R3 cover for fuel removal.
R4 SFP = 1331 removed 2014 (supposedly)

Well Cali, it may be a good catch but what does the video document?  I thought too of spraying from the inside of the building.  Read about some internal spray system so it’s entirely possible.  The internal spray system I read about was said to be for dust suppression.  If all of the spraying is from the internal system then maybe the other tools are seen coincidently with any spraying.  This spraying lasted just the six minutes, not as long as external spraying I’ve seen that lasts for about half an hour to an hour before they reload tanks.  The main reason I started documenting the different crane tools was to try and figure out which tools were doing what since there’s been some confusion about what we see on the tepcams and what all Tepco is saying and doing.  Are you saying the internal spray is water injection into the spent fuel pool?  I found in the Meti pdf (pg 2 of 8) where they want to reduce the water injection into the Unit 1 reactor.   There seems to be a variety of different kinds of spraying to consider.  What caught my attention the most was the bright lights inside Unit 1 with the vapor.  I haven’t seen that before with other spraying.  Then there is my concern of a problem with the spent fuel pools catching on fire or even just flaring up a bit.  The r1 sfp is storing damaged fuel rods, the pool integrity is unknown to us, and a roof laden with debris hangs low over the pool.  Here’s a pdf with a good analysis of problems we have storing spent fuel.  

Quote:Reducing the Hazards from Stored Spent Power-Reactor Fuel in the United States
Robert Alvarez, Jan Beyea, Klaus Janberg, Jungmin Kang,
Ed Lyman, Allison Macfarlane, Gordon Thompson,
Frank N. von Hippel
Another circumstance in which the spray could aggravate the situation
would be if the spent-fuel racks were crushed or covered with debris, blocking
the flow of air. In such a case, steam generated from water dripping into the
superheated fuel could react with the zirconium instead. The circumstances
under which sprays should be used would require detailed scenario analysis.
https://www.princeton.edu/sgs/publicatio...azards.pdf

My six minute video shows something happening.  It may well be that it was something Tepco intended to do while attention was on other happenings.  I've noticed for the last few years that Tepco uses bad weather to hide sfp vapor releases like suspected r4 sfp, r3 sfp, and common pool venting.  Unusual events seem to occur at twilight or dawn, late at night or on holidays when lighting wouldn't be optimal or few might be watching.  Here's a thought, maybe the internal spray system is an emergency spray to quench zirc or fuel fires; in that case it worked and we're none the wiser.  Tepco can say they needed to suppress dust for six minutes.  I have yet to identify which tool might be doing water injection into the reactor.  It was only recently that I figured out that the long rods being inserted into r1 were actually going around the reactor building wall to support the damaged building.  Cali, thanks for commenting.  I know I've concentrated on this event when I should be posting pics of r3's superstructure installation but it kinda blew away some of my theories about which tools are spraying, which are vacuuming, or which ones just pick up or move pieces.  I think I'm going to need more insight to figure out what that six minute video actually shows.
"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
Reply
#33
Hi Horse - Thanks for your reply. What I am noticing is there are two sprayers just outside the frame spraying inside. The second picture shows the spraying stopped or was being greyed/filtered out. Your right, there are many things going on with different tools and spraying apparatuses, I commend you for keeping up with which does what and where Smile  All I've seen is when they drop equipment hanging from the crane and start spraying. This is the first time I've seen the spraying coming from the inside. I didn't think about it but the pools need constant water coverage so the spraying must be the dust/rad suppression. It sure looks like steam yet the spaying has a consistency of fog so in any case, I appreciate you reading more of the pdf document which explains what they are doing. 
   
   

It's almost midnight and it looks like they are going to remove another piece of the frame. Thanks again to you and Pia for keeping an eye on TEPCO!
   

 
Reply
#34
Cali, the arrows helped me identify where you saw the spray coming from.  The top arrow spot does look like it could be originating spray.  The bottom arrow spot isn't as defined and the light is brighter down there.  If it was sunlight reflecting off the vapor I would expect the top spot to be brighter or at least as bright.  It was the bright light that I couldn't easily explain.  Watching when the crane dropped I saw the light brighten and it wasn't from the sunlight.  Also not discounting that other nozzles out of sight could be spraying in there too.  When it snowed the other day, I wondered if the extra weight might sink the roof over the sfp even lower or snow melt might carry some debris into the pool.  I look at Tepco's reports but I consider them to be mostly PR work.  The event still leaves me with too many questions.  

The r1 work on 4-4 went until 6:30 pm when another crane dropped a small square piece off the framework and they just left the big tool hanging over the west wall as seen in your 3rd photo.
"The map is not the territory that it is a map of ... the word is not the thing being referred to."
 
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