LDEF (Prelaunch), P0006 : Linear Energy Transfer Spectrum Measurement Experiment, Tray F02 EL-1994-00199 LDEF (Prelaunch), P0006 : Linear Energy Transfer Spectrum Measurement Experiment, Tray F02 The prelaunch photograph was taken in SAEF II at KSC prior to installation of the integrated experiment tray on the LDEF. The Linear Energy Transfer (LET) Experiment (P0006) is one of three passive experiments located in a 6 inch deep LDEF peripheral tray. The experiment consist of two types of detectors, thermal luminescence and track type, assembled in a sealed container. Two other experiments, the the Seeds in Space Experiment (P0004-01) and the Space Exposed Experiment Developed for Students (SEEDS) P0004-02 were companion experiments in the tray. The experiment hardware was assembled and mounted in the experiment tray with non-magnetic stainless steel fasteners and thermally protected by a silvered TEFLON_ thermal cover. The sealed Linear Energy Transfer (LET) Experiment container was machined from aluminum and assembled together with a Buna-N o-ring seal. The container, approximately 6 inches in diameter and 4.5 inches high, was mounted on the top side of the experiment tray and painted white with Chemglaze II A-276. Thermal control was accomplished by placing the canister on fiberglass isolators and covering the experiment tray with a thin (5 mil) silvered TEFLON_ specular cover secured with Velcro pads located on each of the P0004 canister domes and on clips attached to the tray sidewalls. The apparent brown discoloration in the approximate center of the silvered TEFLON_ cover is a reflection from the surrounding area and not an actual stain.
