March 22nd 2011 – IAEA Request for Analytical Support from NRC for Fukushima source term assessment

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From: LIA02 Hoc
Sent: Tuesday, March 22, 2011 2:57 PM
To: Hoc, PMT12; PMT03 Hoc
Cc: Shaffer, Mark R
Subject: FW: Fukushima

FYI – the IAEA is requesting our assistance. I’m going to provide him with a copy of NUREG 1465 because it’s publicly available, but it would be extremely helpful if we could set up a call for him with the PMT tomorrow and perhaps share some additional information.

I’m going to bring a hard copy of this email back to discuss.

Thank you,
Jen Schwartzman

From: Schwartzman, Jennifer
Sent: Tuesday, March 22, 2011 2:55 PM
To: LIA02 Hoc
Subject: Fw: Fukushima
Sent from an NRC Blackberry

From: [email protected]
To: Schwartzman, Jennifer
Cc: [email protected]
Sent: Tue Mar 22 14:47:56 2011
Subject: RE: Fukushima

Dear Jennifer, in general we are lacking analytical capabilities to assess the source term in the reactors. We have made some very rough assessment based on the radiation levels measurements.

Also, the analytical reconstruction of the events in the reactors is of importance to us to develop understanding of the processes and events. For example we have made some assessment of the events in Unit 1 and our hand calculations indicate full core melt. We would be very grateful if NRC would help us in these two analytical areas.

If you would have information on severe accident management procedures for BWRs this would be useful to understand the decisions and actions at Fukushima.

Hope to hear from you soon,
Best regards,

From: [email protected] [mailto:[email protected]]
Sent: Tuesday,22 March 2011 13:46
To: MODRO, S. Michael
Cc: ‘[email protected]
Subject: Re: Fukushima

Dear Mike,
It is good to hear from you. Could you kindly give me a bit more specific detail about what sort of analytic support you are seeking? On which specific technical subjects? This will help me direct your request.

Best regards,

Sent from an NRC Blackberry

From: [email protected]
To: Schwartzman, Jennifer
Cc: [email protected]
Sent: Tue Mar 22 08:41:20 2011
Subject: Fukushima

Dear Jennifer, Mark Shaffer of the US Mission suggested that I contact you regarding potential cooperation on Fukushima issues. Mission of my section and of the team we assembled is to establish technical assessment of the events. We are performing some limited analyses and we are collaborating with several external organizations and
experts. However, in situations like the Fukushima event the IAEA relies very much on support from the Member States especially in analyses and other evaluations. I do hope that we can count on NRC support as well.

Please let me know whether we could establish exchange information and perhaps have some analytical support from the NRC.

Best regards,
Mike Modro
S. Michael Modro
Acting Section Head
Safety Assessment
Division of Nuclear Installation Safety
International Atomic Energy Agency
email: M.Modro(ciaea.or-q
tel: +43 1 2600 21625

IAEA Request for Analytical Support From NRC – Pages From C142449-02D-2

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