The principle and experiments on the measurement of grease stain in petroleum pipeline using the thermal neutron gauge were reported.
The thermal neutron flux density is measured with Soild State Nuclear Track Detector (SSNTD),and the γ radiation dose rate is detected with Thermoluminescence Dosimeter (TLD).
Neutron lifetime is the time in which the thermal neutron density falls to half.
neutron epithermal neutron log
intrinsic thermal neutron decay time
Inside the sphere cavity, the ratio of ultra thermal neutron counting rate to thermal one is less than 10%, but the counting rates slightly depend on the position of thermal neutron detector.
macroscopic thermal neutron absorption capture cross section
So if you're reactor is on the scale of meters the neutron length scales, it looks like a thermal neutron, is in the order of a tenth of a meter.
neutron-epithermal neutron logging
epithermal neutron activation analysis
A new method of data processing used in pulse fast thermal neutron analysis technology is introduced.
A xenon poison method is proposed for measurement of thermal neutron flux density.
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