Brezinsek, S., Pospieszczyk, A., Kirschner, A., Borodin, D., Philipps, V., Samm, U., Stamp, M. F., Pugno, R., Kallenbach, A., Fantz, U., Manhard, A., McLean, A., Brooks, N., Groth, M., TEXTOR Team, ASDEX Upgrade Team, DIII-D Team, & JET-EFDA contributors (2006). Hydrocarbon injection for quantification of chemical erosion yields in tokamaks. Talk presented at 17th International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 17). Hefei Anhui. 2006-05-22 - 2006-05-26.