Neutron Production in Thick Targets Irradiated with High-Energy Ions

Table 2

Experimental neutron ambient dose equivalent from the irradiation of a Pb target in “Gamma-2” and “Energy plus Transmutation” (𝐸+𝑇) with 10¹³ protons and a comparison with model calculations [6].

Target and position of SSNTD	Thermal-epithermal neutron dose		Intermediate-fast neutron dose
	Experiment	Calculation	Experiment	calculation
Gamma-2, (at 1 GeV) close to target	610±30 mSv	—	8000±3000 mSv	—
Gamma-2, behind 1 m concrete	0.411±0.114 mSv	0.375 mSv	<0.05 mSv	0.020 mSv
𝐸 & 𝑇, (at 1.5 GeV) close to target	160±30 mSv	—	17000±4000 mSv	—
𝐸+𝑇, behind 1 m concrete	<0.0015 mSv	0.0013 mSv	<0.05 mSv	0.020 mSv