Two steps of preliminary study had been conducted in conjunction with the design of a PGNAA experimental facility at Kartini reactor. i. e. beam characterization of the existing beam ports to select one going to be used and the collimator design at the selected beam port. https://www.roneverhart.com/HP-Chromebook-x360-14b-cb0047nr-14-HD-Touch-Intel-Celeron-N4500-1-10-GHz-4GB-32GB-eMMC-Intel-UHD-Graphics-Chrome-OS-L/