Some SNAP-27 Info:
"The SNAP-27 Radioisotope Thermoelectric Generator (RTG) converted the heat energy from radioactive decay to electrical energy. Five such RTGs provided electric power for the Apollo Lunar Surface Experiment Packages (ALSEP) left on the Moon by Apollos 12, 14, 15, 16 and 17. These stations transmitted information about moonquakes and meteor impacts, lunar magnetic and gravitational fields, the Moon's internal temperature, and the Moon's atmosphere for several years after the missions. After ten years, a SNAP-27 still produces more than 90% of its initial output of 70 Watts."
After ~ 30 years at 12 Light-Hours distance Pioneer-10 power
output was "within 15% o launch power".
----- Original Message -----From: Frederick SparberSent: 5/14/2006 6:26:11 AMSubject: Re: Heavy Argon, was: The Pappajo engineRobin and Jones.There's a SNAP Generator with potassium and argon filled heat pipes sittingon the Moon, also in Pioneer-10, Voyagers 1 & 2 and other long termspace probes.The potassium I used for testing the heat pipes came in steelcontainers sealed under Argon pressure.Also, I used Argon as a cover gas for life-testing the heat pipes in a sealedglass-covered box at RCA Lancaster (next to Thermacore-Mills environs)and in the lab, but, I didn't think to look for Heavy Argon, even thoughPotassium-Argonide compounds were discussed ca.1967-70.I gather that Mills is running Potassium-Argon (hydrogen) discharges?Feel free to retrieve them if you wish. :-)Fred

