Friday, March 23, 2012

1,640 Millisieverts/Hr Radiation in #Fukushima I Nuke Plant Reactor 2 Bldg

When Quince the robot entered the reactor building to measure the radiation levels on the 1st floor of Reactor 2 building, the radiation levels were in 2 digits.

Now, carbon-based colleagues of Quince (TEPCO and Toshiba) entered the same building, and they got to detect 1,640 millisieverts/hour (or 1.64 sievert/hour) radiation on the second floor.

TEPCO and Toshiba employees entered the Reactor 2 building to conduct the survey in preparation for installing the thermometers to replace the current ones that are failing fast. The survey was done on March 15, 16, 21 (this may be Quince only), and 22.

From TEPCO's handout for the press (3/23/2012):

(The first image says "1st floor", but it is "2nd floor".)


13 comments:

Atomfritz said...

Funny that silicon based robots survey the rooms with 2 millisievert and carbon based robots survey the 2 sievert places.

@ LaPrimavera
please could you check whether there is a firefighter unit on the Fuku-I plant?

You remember, recently there was a fire on the plant.
At 11:25am workers extinguished the fire.
At 12:13pm firefighters were called.
At 1:13pm the firefighters were on site and confirmed that the fire was out.
They needed one hour... were they the Minamisoma firefighters? (H/T tec-sim)

Does Tepco still have no firefighters on-site?

Anonymous said...

It says the lower radiation reading by the robots came from the 1st floor, and the human readings came from the second floor. Perhaps the humans were able to get instruments into places where the robots couldn't.

Anonymous said...

please, donate, for it, a picture w/ a new special friend http://fukushima-diary.com/2012/03/iori-mochizuki-cyberdissident-japonais/

Anonymous said...

PLEASE DONATE TO THIS BLOG, not that crap.

Atomfritz said...

OT:
11 years ago Tepco changed thermocouple wiring without documenting it.

Now the altered wiring had been found out.
Tepco didn't notice that the readings which they believed were from thermocouple X were actually from completely different thermocouple Y!

How many other undocumented changes in nuclear power plants still wait for discovery, possibly leading to catastrophic events?

(H/T Tsutsuji)
http://physicsforums.com/showpost.php?p=3829851&postcount=12688

Anonymous said...

Fukushima Daichi has a dedicated fire fighter squad on site, allegedly

Anonymous said...

@Mochizuki, Take your pathetic Fukushima Diary donation begging/spamming and get lost. Taking an extended vacation in Europe by begging and conning sympathetic people out of their money by claiming to be a 'nuclear refugee' is absolutely disgusting. I have zero respect for con-artists like you. If anyone should donate, it should be to this blog - ex-skf. The info here is actually useful.

Anonymous said...

Sorry, but why do I see the radiation values as 1640 and 330 in the last image to this post (the green box) but as 42 and 11 in TEPCO's document? ==Elena

Anonymous said...

Two digits in millisieverts, or siverts? Or, is it getting better or worse?

arevamirpal::laprimavera said...

Millisieverts.

Atomfritz said...

@ Elena 8:26
Cannot find 42 and 11 in the document Ex-SKF linked at.
Which Tepco document are you referring to?

Anonymous said...

Could you publish maximum threshold levels, or discussion of, for seiverts, miliseiverts and becquerels. I see the units but don't get the significance. Maybe as a reference sidebar so we can check back as we read. I check your blog daily.

arevamirpal::laprimavera said...

>Could you publish maximum threshold levels, or discussion of, for seiverts, miliseiverts and becquerels. I see the units but don't get the significance. Maybe as a reference sidebar so we can check back as we read.

Readers who are radiation experts, want to create that?

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