 The reduced production of hard X-ray energy via the production of hot electrons while using frequency doubled and tripled laser light (as opposed to the infrared light directly produced by the laser itself) was first noticed on Argus.This technique would also be later validated in the direct drive mode (at both the LLE and Novette laser) and subsequently used to enhance laser energy to target plasma coupling efficiency in experiments on nearly all subsequent laser inertial confinement devices.Argus was shut down and dismantled in September 1981.