Specification
| AT140 Neutron Calibration Facility | |
| Source of neutrons, peak neutron flux | 238Pu-Be:  5∙107 neutron/s 252Cf: 5∙108 neutron/s  | 
| Fast neutron flux density | 2.5 – 3.5∙103 neutron/(s∙cm2) | 
| Slow neutron flux density | 1 – 1.4∙103 neutron/(s∙cm2) | 
| Ambient and personal dose equivalent rates | 3.5 – 4.0∙103 µSv/h | 
| Intrinsic relative error | ±5% for neutron flux density ±7% for ambient and personal dose equivalent rates  | 
| Actual values of range limits and errors are determined by calibration | |








