A key advantage of CRPs is that because they are made of simple metal-plated circuit boards rather than a tight coil of wires, they are cheaper and easier to manufacture and install than APAs.

Source: https://phys.org/news/2023-03-dune-collaboration-technology-detector-module.html

"We're using older APAs to validate those procedures so that we're not going to damage anything when we start bringing the real APAs to SURF," said Fermilab scientist Eric James, a technical coordinator who focuses on DUNE's horizontal drift detector.

Source: https://phys.org/news/2023-03-dune-collaboration-ready-ramp-mass.html

"We're using older APAs to validate those procedures so that we're not going to damage anything when we start bringing the real APAs to SURF," said Fermilab scientist Eric James, a technical coordinator who focuses on DUNE's horizontal drift detector.

Source: https://phys.org/news/2023-03-dune-collaboration-ready-ramp-mass.html