@ piEre? NELETED Toe Vacuum pipes vere fifty feet long with turning airrore to direct light toward Stetion 2301. Fluers: Five fluors were used in the experiment, placed at intervals dovn along one tover leg. These flucrs responded et a lover gemma flux level than did air (primary Teller light). Recovery and the leter expected response to the gamma flux from the secondary wes abeent and is probably due to the eaturation of the flucrs because of their close proximity to the device. TASINREATATION All equipment functioned satisfactorily. . The trangisscmeters indicated good visitility, aprroximately 72% trenmiesion st shot time. The Pireni (gauges on the three vacuum pipes all indicated better than ten microns pressure, which is well below tle upper limit of fifty microns. ° Al) measurements by optionl comparator: Tees - Primory tero times are recorded by fluores S 4 cor SS9 COPTER Ot SANTHA RC