DETERMINATION OF RADIATION MONITOR DETECTION THRESHOLD Russian patent published in 2014 - IPC G01T1/167 

FIELD: power engineering.

SUBSTANCE: minimum detection threshold for radiation monitor "П"_min with the number of detectors d₁, used criteria k₁ against the background of registered radiation N_back1 and distribution of statistic processing z₁ are defined proceeding from measured threshold "П₁" by varying parameters z₂ and k₂ as $$"П{"}_{\min }=\min {\left["{П}_1"\frac{z_2\left(d_1^{-2/3}+k_2^{-2/3}\right)\sqrt{{\overline{N}}_{back2}}}{z_1\left(d_1^{-2/3}+k_1^{-2/3}\right)\sqrt{{\overline{N}}_{back1}}}\right]}_{z_2,k_2}.$$ While at other parameters N_back2, z₂, d₂ and k₂ detection threshold is defined as $$"{П}_2"="{П}_1"\frac{z_2\left(d_1^{-2/3}+k_2^{-2/3}\right)\sqrt{{\overline{N}}_{back2}}}{z_1\left(d_1^{-2/3}+k_1^{-2/3}\right)\sqrt{{\overline{N}}_{back1}}},$$ where $${\overline{N}}_{back}=N_{back}\left(k_1+2k_2+3k_3+\dots +n{k}_n\right)/{\displaystyle \sum _{i=1}^n{k}_i},$$ k_i is the number of combination of count i of detectors, N_back is the background of one detectors, n≤d.

EFFECT: decreased detection threshold without application of additional measurements.

2 cl, 5 tbl