41. :: Radioisotope thermoelectric generator does something like this. 42. The amount of additional radioisotopes is far too small to make a difference. 43. Methods used to destroy tissue included thermocoagulation, suction, radioisotopes and leucotomes. 44. Edmond and his research group tracked oceanic particulate matter, trace elements and radioisotopes . 45. Another machine called a cyclotron will make radioisotopes that enhance some of the pictures. 46. Some of the radioisotopes will remain deadly for more than 10, 000 years. 47. The most stable chlorine radioisotope is 36 Cl. 48. Radon decays to form solid radioisotopes that form coatings on the inside of pipework. 49. These radioisotopes excite the surrounding material to incandescence. 50. In addition, they bombarded aluminium and magnesium with neutrons to make new radioisotopes .