Table 2.

The statistic uncertainty and systematic uncertainty in this work.

Source of uncertainty	$\epsilon$	Meaning	Value (%)
Experiment conditions	${\epsilon }_{\varphi 1}$	Uncertainty of neutron energy spectrum below 150 keV	$\approx$8.00
	${\epsilon }_{\varphi 2}$	Uncertainty of neutron energy spectrum above 150 keV	$\approx$4.50
	${\epsilon }_{\mathit{sample}}$	Uncertainty of sample parameter (see Table 1)	< 0.50
	${\epsilon }_{\mathit{pbp}}$	Uncertainty of proton beam power	< 1.50
Data analysis	${\epsilon }_{\mathit{PHWT}}$	Uncertainty from PHWT	< 3.00
	${\epsilon }_{\mathit{unfolding}}$	Uncertainty of unfolding	< 2.00
Statistics	${\epsilon }_{\mathit{Statistic}}$	Statistic uncertainty	< 2.70
Error propagation	${\epsilon }_{\mathit{total}}$	Total uncertainty	< 9.00