I thought this might be about the SLAC technical notes that date back a long time. You can find a repository of them at: https://www.slac.stanford.edu/pubs/slactns/

All sorts of interesting topics from early computing (I found them when looking into IBM Channel I/O), practical material research, and of course building a linear accelerator. Even a few recent ones I've seen are interesting, like when to use rsync, or notes on PCIe NVME SSD use.