ZHANG Wende BAI Lixin ZHANG Huige. The best choice of the sample box’s shape in radio active measurements of environmental samples[J]. Nuclear techniques, 2007, (2): 157-160.
ZHANG Wende BAI Lixin ZHANG Huige. The best choice of the sample box’s shape in radio active measurements of environmental samples[J]. Nuclear techniques, 2007, (2): 157-160.DOI:
In the radioactive measurements of environmental samples
if a constant measurement accuracy is required
the higher the detection efficiency
the less measurement time and the higher utilization ratio of the spectrometer. For the same sample volume
the shape of cylindric samples may affect the detection efficiency. The detection efficiencies of cylindric samples with the same volume but variable shapes have been simulated with MCNP-4B
and verified by experiments. It is shown that efficiency of the cylindric sample with a size of Φ12m×3cm is the highest
which is about 20% higher than that for general cylindric samples with a size of Φ7.5cm×7.5cm.