[ RadSafe ] two shells Tritium production in a nuke plant

Fri Apr 19 20:29:34 CDT 2013

Look at I & E Bulletin 80-10

On Fri, Apr 19, 2013 at 9:28 PM, Scott Davidson <bsdnuke at gmail.com> wrote:

> My 2 cents worth.  The issue is not new with tritium.  What is new is that
> everybody looked but missed calculating the dose from the pathway of
> tritium to the environment.  Because this was missed when tritium was found
> it was not expected and no one knew whether it was a big deal or not.
>  Also, this pathway was not included in the plant's ODCM which I think
> stands for off site dose calculation manual.
>
> All routine release pathways are accounted for in the ODCM or so we
> thought.  In the 1970s there was a leak from condensate tanks to the
> environment at Indian Point.  This resulted in a Bulletin which carried the
> equivalent of law for the plants to look for a sneak pathway to the
> environment.  NRC inspectors looked at the pathways too and that ended
> that.  So this tritium issue is just an unanalyzed pathway for plants
> currently operating.
>
> Remember this if your source term or expected release is 10 curies or 1000
> you will have the same performance requirements (LLD) in your RETS which is
> the radiological environmental technical specifications.  This uncertainty
> is probably about the same order of magnitude error in the geohydrological
> modeling.  So if the proponent of the new plant uses a worst case
> combination of these you just have to meet the environmental dose
> performance objectives in 10 CFR 50 Appendix I.  These have the gaseous and
> liquid pathways which should be able to capture and model intakes from the
> tritium in the aquifer or groundwater providing drinking water, irrigation,
> etc.
>
> For an order of magnitude SWAG, I would look at John Till's Radiological
> Assessment book which is a NUREG.  It may be helpful to eventually writing
> the scope of work for the contractor that can help you with this.
>
> Scott
>
>
> On Fri, Apr 19, 2013 at 9:09 PM, Emil <kerrembaev at yahoo.com> wrote:
>
>> nrc has two shells.
>> 1. 'busy work' regulatory agency. busy part are regulations, inspections,
>> enforcements etc.
>> 2. public opinion monitoring eyes and ears, teeter-totter, wait and see.
>>
>> licensees are dealing with "busy work" agency, that knows that tritium is
>> not dangerous nuclide.
>> but they don't decide nothing (double negative), they are as said just do
>> 'busy work'.
>>
>> decisions are made in the second shell.
>> where tritium's danger depends on:
>> a) geographic location.
>> b) time of the year.
>>
>> obvious disconnect between two shells.
>>
>> In the other words, tritium is the least dangerous from
>> radiological point of view.
>> However, tritium has caused the most damage by its high mobility and some
>> surveillance elusiveness, the second to strontium.
>>
>> Contrary to nrc, doe is much better...just kidding, something is always
>> needs to be left for later.
>>
>> Have a nice and safe day to everyone.
>>
>> Emil Murat.
>>
>> --- On Thu, 4/18/13, Jerry Cohen <jjcohen at prodigy.net> wrote:
>>
>>
>> From: Jerry Cohen <jjcohen at prodigy.net>
>> Subject: Re: [ RadSafe ] Tritium production in a nuke plant
>> To: "The International Radiation Protection (Health Physics) MailingList"
>> <radsafe at health.phys.iit.edu>
>> Date: Thursday, April 18, 2013, 8:12 PM
>>
>>
>> OK, so ask NRC. Maybe they will tell you why H3 is dangerous---Then you
>> can
>> share this information with the rest of us.   Jerry
>>
>>
>> ----- Original Message -----
>> From: "Rahim Ghanooni" <rahim.ghanooni at gmail.com>
>> To: "The International Radiation Protection (Health Physics) Mailing List"
>> <radsafe at health.phys.iit.edu>
>> Sent: Wednesday, April 17, 2013 3:57 PM
>> Subject: Re: [ RadSafe ] Tritium production in a nuke plant
>>
>>
>> > Jerry :
>> >
>> > I agree with you but I have to answer the higher authority, means NRC.
>> >
>> > Rahim
>> >
>> >
>> > On Wed, Apr 17, 2013 at 2:36 PM, Jerry Cohen <jjcohen at prodigy.net>
>> wrote:
>> >
>> >> Just curious as to why you believe tritium production is of any
>> >> importance. From a public health standpoint, tritium is of little or no
>> >> consequence.
>> >> Jerry Cohen
>> >>
>> >>
>> >> ----- Original Message ----- From: "Rahim Ghanooni" <
>> >> rahim.ghanooni at gmail.com>
>> >> To: "The International Radiation Protection (Health Physics) Mailing
>> >> List"
>> >> <radsafe at health.phys.iit.edu>
>> >> Sent: Wednesday, April 17, 2013 12:44 PM
>> >> Subject: [ RadSafe ] Tritium production in a nuke plant
>> >>
>> >>
>> >>  I am looking for a equation/method/documentation/**publication to
>> >>> calculate
>> >>> the Tritium production in a typical nuke plant.
>> >>>
>> >>> Feel free to contact me directly.
>> >>>
>> >>> Thnx
>> >>> Rahim
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>