AW: [ RadSafe ] Thermal Neutron Counting
sandyfl at earthlink.net
Mon Apr 10 16:22:19 CDT 2006
On 10 Apr 2006 at 23:15, Rainer.Facius at dlr.de 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.
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