RE: Transport Index

["Jim Ogden" <James.Ogden@tdh.state.tx.us>]

Hi All:

Here's the full definition of the Transport index (TI):  means the 
demensionless number (rounded up to the next tenth) placed on the 
label of a package to designate the degree of control to be exercised 
by the carrier during transportation.  The transportation index is 
determined as follows: (49 CFR 173.403 - definitions)
	(1)  For nonfissile material packages, the number determined by 
multiplying the maximum radiation level in milliSievert(s) per hour 
at one meter (3.3  feet) from the external surface of the package by 
100 (equivalent to the maximum radiation level in millirem per hour 
at one meter (3.3 feet)); or
	(2)  For fissile material packages, the number determined by 
multiplying the maximum radiation level in milliSievert per hour at 
one meter (3.3 feet) from any external surface of the package by 100 
(equivalent to the maximum radiation level in millirem per hour at 
one meter (3.3 feet) or, for criticality control purposes, the number 
obtained by dividing 50 by the allowable number of packages which may 
be transported together, whichever number is larger

 As I understand it the NRC uses a RO-2 for measurements - with no 
mention of the type of radiation.

Hope this helps the discussion.

Thanks,



Subject:       RE: Transport Index

What about beta?

> -----Original Message-----
> From:	Busby, Bruce [SMTP:bab1303@doh.wa.gov]
> Sent:	Tuesday, February 02, 1999 12:11 PM
> To:	Multiple recipients of list
> Subject:	RE: Transport Index
> 
> >The transport index (TI) is the dose rate in mrem/hour measured at one 
> meter
> >from the external surface of the package.  Less than one mrem is, of 
> course,
> >reported, but not to more than two decimal places.
> 
> Here is a question, does the TI include neutron dose rate contribution? 
> During a 'recent' class on transportation, when asked, the instructor 
> said no, just photons. He said the DOT (or NRC...) had made a ruling on 
> that... though, he could not recall exactly where that was. The regs say 
> mSv/hr divided by 100 (mrem/hr) (49 CFR 173.403). 
> 
> Anyone out there measure the neutron component, of say a moisture density 
> gauge or other neutron sources? 
> 
> 
> --------------------------------------------------------------
> Bruce A. Busby    -     Radiation Health Physicist
> W- bab1303@doh.wa.gov      H-babusby@aol.com
> Rad Prot. Div. - Dept. of Health - Washington State
> 7171 Cleanwater Lane, Bldg. 5   Olympia, WA  98504
> 
> ---------------------------------------------------------------
> 
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James H. Ogden, Jr., Emergency Planner
WIPP Transportation Project
INTERNET Address (james.ogden@tdh.state.tx.us)
(512) 834-6688 ext 2016
(512) 834-6654 FAX


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