I made the PCLN block touch photon, and the max temperature i was able to achieve was 6000 ish, but when i made the PCLN block touch BRAY, the max temperature jumped to 7300 ish and the laser still emitted photons, what happened?
... you made bray continuously spawn in the way of photons at the photon source, so now hot photons bouncing back from the vacu heat the bray up and that in turn gives new photons a higher initial temperature than what they're spawned with.