[ RadSafe ] Nonsense Claim: by Mangano: RE: 14, 000 US Deaths Linked to Radiation Leaks at Damaged Fukushima Nuclear Reactor in Japan

[radbloom at comcast.net]

The average quality factor is the risk part of the rem and the sievert ... I'm confused about the confusion - last I heard 100 rem are equivalent to 1 Sv , 

  

Cindy 


----- Original Message -----




From: "Greg Landry" <glandry803@ earthlink .net> 
To: "The International Radiation Protection (Health Physics) Mailing List" < radsafe @health.phys. iit . edu > 
Sent: Tuesday, December 20, 2011 3:40:20 PM 
Subject: Re: [ RadSafe ] Nonsense Claim: by Mangano : RE: 14, 000 US Deaths Linked to Radiation Leaks at Damaged Fukushima Nuclear Reactor in Japan 

Good afternoon, 

OK, I went back to my Shultis and Faw sheilding text to verify this, although I didn't really need to. 

Sv = Gy * Ave QF 

Gy is strictly absorbed dose 

Sv is equivalent dose 

Ave QF is determined by RBE factors determined for each radiation type. These RBE factors based on observed biological damage determined via experiment and normalizes damage of non-photon radiations to that of photons.  This is basically how the rem is handled as well if I recall.  I guess I'm not seeing the risk basis of the definition. If there *is* a risk basis, then certainly it must apply to the rem as well. 

Best regards, 
Greg Landry, CHP 


-----Original Message----- 
>From: Ted de Castro < tdc @ xrayted .com> 
>Sent: Dec 20, 2011 12:08 PM 
>To: "The International Radiation Protection (Health Physics) Mailing List" < radsafe @health.phys. iit . edu > 
>Subject: Re: [ RadSafe ] Nonsense Claim: by Mangano : RE: 14, 000 US Deaths Linked to Radiation Leaks at Damaged Fukushima Nuclear Reactor in Japan 
> 
>The SI DOSE unit is RISK BASED by definition (look it up) - not physics 
>based and are thus not measurable.  Also therefore to use the SI dose 
>unit is to declare and define a risk - as small a number as you wish all 
>the way down to zero.  That's LNTH and exceeds our actual understanding 
>of what risks really are. 
> 
>For CONVENIENCE and practicality we just take readings on a scale so 
>annotated and/or move a decimal point - but this is a shortcut to try to 
>actually use an unworkable unit. 
> 
>becquerels are a physical unit, 
>Coulombs (rads in air) are also, 
>grays .... I'm not so sure, 
>BUT Sieverts ARE risk based by definition and not just rem with a 
>decimal point moved - although that is how they are used in practice.   
>But then back in the old days few people used RAD and REM correctly - 
>even regulations were written using the wrong units. 
> 
>On 12/20/2011 9:11 AM, Brennan, Mike ( DOH ) wrote: 
>> I understand and am sympathetic towards your criticism of Linear No 
>> Threshold, but I am unsure of how SI units are to blame.  While I still 
>> think in curies, I acknowledge becquerels are an easier to explain unit. 
>> Sieverts are just rem with the decimal place moved.  Same with grays and 
>> rads. 
>> 
>> I am not saying you are incorrect; I am just saying I don't understand 
>> what you are getting at. 
>> 
>> -----Original Message----- 
>> From: radsafe -bounces at health.phys. iit . edu 
>> [ mailto : radsafe -bounces at health.phys. iit . edu ] On Behalf Of Ted de Castro 
>> Sent: Monday, December 19, 2011 11:15 PM 
>> To: The International Radiation Protection (Health Physics) Mailing List 
>> Subject: Re: [ RadSafe ] Nonsense Claim: by Mangano : RE: 14, 000 US 
>> Deaths Linked to Radiation Leaks at Damaged Fukushima Nuclear Reactor in 
>> Japan 
>> 
>> You realize of course that this is here to stay and why? 
>> 
>> Two things: 
>> 
>> LNTH and 
>> SI units! 
>> 
>> SI units are proclaimed to be RISK BASED and are a linear units 
>> enumerated all the way down to 0.  So like 1984's Newspeak - SI units 
>> make it impossible to speak anything other than LNTH - thus making a 
>> hypothesis - law! 
>> 
>> It kinda hard of blame anyone for using the units as prescribed - 
>> ridiculous as it may be. 
>> 
>> On 12/19/2011 9:07 PM, Roger Helbig wrote: 
>>> The poster (author) of this piece's e-mail is britliggett [@] gmail 
>>> dot.com - her personal page is at http :// www . britliggett .com/writing 
>>> and that links back to the article.  She seems to be someone with an 
>>> interest in Green things, no expertise in radiation and perhaps easily 
>>> baffled by Mangano's alleged academic credentials.  I am sure that she 
>>> has no idea of Mangano's past reputation for being a prominent 
>>> non-scientist. 
>>> 
>>> The publication was established by and I would seriously question them 
>>> about why this even appears here -  the writer has written pieces for 
>>> them in the past and has experience doing a video documentary of craft 
>>> beer production. 
>>> 
>>> Inhabitat was started by NYC designer Jill Fehrenbacher (Twitter 
>>> @ JillFehr ) as a forum for investigating emerging trends in product, 
>>> interior, and architectural design. Managing Editor Mike Chino and 
>>> Senior Editor Yuka Yoneda lead the editorial team 
>>> 
>>> Roger Helbig 
>>> _______________________________________________ 
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