Particle explosion, removing movieclips?

When you use an original movieclip and replicate it dozens of times but cant .removeMovieClip() the original when you can the copies what can be done!

Ive attached the associated file, Its simply a partical generator that initially creates an explosion of particles which disipate after they stray a certain distance, but how can i remove the original particle movieclip from which Its formed? It stays around… any ideas?