Atmospheric-Like Neutron Attenuation During Accelerated Neutron Testing With Multiple Printed Circuit Boards

Engineers usually test multiple printed circuit boards (PCBs) and integrated circuits (ICs) in the neutron beam to improve the error statistics. The attenuation of an atmospheric-like neutron spectrum by materials commonly used in PCBs is evaluated experimentally and with simulations of the neutron transport. Measurements were performed during neutron irradiation experiments of multiple boards using a beam monitor to correlate simulations with experimental results.