is this the radioisotpe symbol?

http://www.google.ca/imgres?um=1&hl=en&sa=N&biw=1280&bih=933&tbm=isch&tbnid=131KAKVO6BjRKM:&imgrefurl=http://scienceprogress.org/2007/12/isotope-shortage-threatens-health-of-patients-nationwide/&docid=0OZYD7z2NjkDJM&imgurl=http://www.scienceprogress.org/wp-content/uploads/2007/12/radioactive_symbol_250.jpg&w=250&h=219&ei=xRViUKDxOomQ9QTN5IDYCQ&zoom=1&iact=hc&vpx=194&vpy=156&dur=2497&hovh=175&hovw=200&tx=89&ty=106&sig=109969363707977852849&page=1&tbnh=129&tbnw=147&start=0&ndsp=34&ved=1t:429,r:0,s:0,i:71 the yellow triangle i have to do a project on radioisotope labeling and how its used to study the functions of internal organs and if that is the symbol, i wanted to make the poster shaped like that. and put the information where the black spots/parts are. if you have any other suggestions that i could do for the poster, plese tell me! thanks