Europe unveils world's most powerful X-ray laser

In one part of the article, they mention the laser obliterates everything it images while in another also noting the increased pulse rate allows them to create movies of the same reaction proceeding. Wouldn't they have destroyed the reaction they sought to image? What gives?

A 27x increase in pulse rate and data-gathering capacity is outstanding. This will be like going from Eadweard Muybridge animations to HD slo-mo, and will been a boon for biologists and materials scientists.