Table 3 Major specifications of the iBNCT001 device and the characteristics of its neutron beam

Linac operating conditions

Accelerator type

RFQ and DTL-type linac

Repetition cycle

75 Hz

Proton energy

8 MeV

Proton average current

2.1 mA

Target material

Beryllium

Neutron beam characteristics in free air

Epithermal neutron flux

7.0 ×10⁸ (n/cm²/s)

Gamma-ray dose rate in the epithermal beam

0.04 (Gy/h)

Ratio of thermal neutron per epithermal neutron

0.01

Fast neutron component per epithermal neutron

3.8 ×10⁻¹³ (Gycm²/n)

Gamma-ray component per epithermal neutron

2.8 ×10⁻¹⁴ (Gycm²/n)

Neutrons and gamma-rays in a water phantom

Maximum thermal neutron flux

1.4 ×10⁹ (n/cm²/s) (with 120 mm beam aperture)

Gamma-ray dose rate

5.0 (Gy/h)