Table 2 The statistic uncertainty and systematic uncertainty in this work.

From: Measurement of the \( ^{181} \)Ta(\(n,\gamma \)) cross sections up to stellar s-process temperatures at the CSNS Back-n

Source of uncertainty

\(\varepsilon \)

Meaning

Value (%)

Experiment conditions

\(\varepsilon _{\phi 1}\)

Uncertainty of neutron energy spectrum below 150 keV

\(\approx \)8.00

\(\varepsilon _{\phi 2}\)

Uncertainty of neutron energy spectrum above 150 keV

\(\approx \)4.50

\(\varepsilon _{sample}\)

Uncertainty of sample parameter (see Table 1)

< 0.50

\(\varepsilon _{pbp}\)

Uncertainty of proton beam power

< 1.50

Data analysis

\(\varepsilon _{PHWT}\)

Uncertainty from PHWT

< 3.00

\(\varepsilon _{unfolding}\)

Uncertainty of unfolding

< 2.00

Statistics

\(\varepsilon _{Statistic}\)

Statistic uncertainty

< 2.70

Error propagation

\(\varepsilon _{total}\)

Total uncertainty

< 9.00