[ RadSafe ] Re:U-238 spontaneous fission

Wed Jun 18 23:17:12 CDT 2008

So again a common people separated by a common language!

LNM from Baku, Azerbaijan 
Sent via BlackBerry by AT&T

-----Original Message-----
From: "Ross Beveridge" <rgb at rrbev.co.uk>

Date: Wed, 18 Jun 2008 23:11:51 
To:"'Doug Aitken'" <jdaitken at sugar-land.oilfield.slb.com>, <LNMolino at aol.com>,       <radsafe at radlab.nl>
Subject: RE: [ RadSafe ] Re:U-238 spontaneous fission

The ALARP principle is a key part of the UK radiation protection, not just
something to be 'different'!

The requirement to reduce doses to As Low As Reasonably Practicable, ALARP,
is a statutory requirement of the Ionising Radiations Regulations 1999
(IRR99). The definition of ALARP in law was established by a judgement of
the Court of Appeal, which concluded that it is reasonable to require an
employer to avert a risk unless the ‘sacrifice’ (cost, time or trouble) is
‘grossly disproportionate’.

The employer must therefore be able to demonstrate that they have;
• Assessed the risk
• Estimated the ‘sacrifice’
• Performed a comparison between the two
• Taken action to avert the risk where appropriate

Demonstration of ALARP is achieved by application of a process, this
involves a series of steps to ensure that doses are carefully managed
throughout the work.
This does not necessarily mean that dose has been minimised, as minimising
dose in isolation could have an unreasonable impact on other key factors
such as project timescales or cost. The requirement is therefore to minimise
the overall project risk (as far as reasonably practicable) by optimising
the key elements of:
• Dose
• Cost
• Project timescale
• Number of people
• Environmental Discharges
• Conventional Safety

The key point is ensuring that your risk assessment and subsequent
justification is robust enough to stand up to the scrutiny/cross examination
if you find yourself in a Court of Law defending your
recommendations/advice.  

Best Regards

Ross 

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf
Of Doug Aitken
Sent: 18 June 2008 22:27
To: LNMolino at aol.com; radsafe at radlab.nl
Subject: RE: [ RadSafe ] Re:U-238 spontaneous fission

Hmmmm:
Given their safety record here in their Houston/Deer Park refinery, I would
not hold BP up as much of an example....
But the correct application of ALARA (according to ICRP recommendations
1990) is "(doses)should be kept as low as reasonably achievable, economic
and social factors being taken into account....."

The use of "Practical" seems to be just a change for the sake of "being
different"

Regards
Doug
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Doug Aitken     Cell phone: 713-562-8585 QHSE Advisor D&M Operations Support
Schlumberger Technology Corporation 300 Schlumberger Drive Sugar Land TX
77030

Home office: 713-797-0919  Home Fax: 713-797-1757
______________________________________________

-----Original Message-----
From: radsafe-bounces at radlab.nl [mailto:radsafe-bounces at radlab.nl] On Behalf
Of Louis N. Molino, Sr.
Sent: Wednesday, June 18, 2008 7:01 PM
To: radsafe at radlab.nl
Subject: Re: [ RadSafe ] Re:U-238 spontaneous fission

BP uses ALARP in their corporate HSSE documentation (overall for all aspects
of HSSE guidance not just RAD) as in the last A becomes P for PRACTICAL and
the speak of a concept of balance to include costs and benefits. 

LNM from Baku, Azerbaijan   
Sent via BlackBerry by AT&T

-----Original Message-----
From: BLHamrick at aol.com

Date: Wed, 18 Jun 2008 19:33:54
To:GEOelectronics at netscape.com, radsafe at radlab.nl
Subject: Re: [ RadSafe ] Re:U-238 spontaneous fission

I agree, and just want to emphasize, ALARA makes sense (or at least is a  
fair compromise for public policy purposes, since we can't really expect
most of  
our politicians to really understand risk assessment) only so long as  we 
don't forget the importance of the "R."  REASONABLY achievable does  not
equal 
technologically achievable (at any cost).

Barbara

In a message dated 6/18/2008 9:45:07 A.M. Pacific Daylight Time,  
GEOelectronics at netscape.com writes:

ALARA  makes sense, and most professionals follow it with caution but not  
paranoia.

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