AW: [ RadSafe ] Thermal Neutron Counting

Sandy Perle sandyfl at
Mon Apr 10 16:22:19 CDT 2006

On 10 Apr 2006 at 23:15, Rainer.Facius at wrote:

> If you have a low LET background (photons ) admixed you would need TLDs
> with Li-7 and Li-6 to subtract the low LET background as measured in the
> Li-7F since only the Li-6 isotope does register the thermal neutrons.


Absolutely!  We use the TLD card with 3 Li-7 and 1 Li-6 TLD cards, as 
well as loose chips (Li-100) but that would require a specific 
neutron calibration factor and there not be any other radiation types 
such as photons or beta.


Sandy Perle
Senior Vice President, Technical Operations
Global Dosimetry Solutions, Inc.
2652 McGaw Avenue
Irvine, CA 92614 

Tel: (949) 296-2306 / (888) 437-1714  Extension 2306
Fax:(949) 296-1144

E-Mail: sperle at
E-Mail: sandyfl at 

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