[en] The impurity injection technique is a useful tool for the investigation of many plasma properties. To study quick processes with good temporal and spatial resolution, a bunch of impurities is neede, well localized both in space and time. Micropellets ranging from 10 to 100 μm size and 0.1 to 10 km/sec velocity are very suitable for this. A new pellet acceleration method is reported using aluminium powder of approx. 100 μm granule size. The powder is glued with synthetic glue to the surface of a glass disc. The disc is then fired from the opposite side with an intense laser pulse and the pellets get free from the glass surface. Also presented are some results of the experimental investigation of the toroidal transport of injected impurities in the MT-1M tokamak plasma using the new pellet injector. (author) 1 tab., 2 figs., 2 refs