Stopping emitter after 1 'cycle'

Any way of stopping an emitter after it's used up all of the particles ?

The context would be for something like an explosion.

I've had a look around the code but couldn't see anything obvious.. but hopefully I've overlooked something (most likely!

"One shot" emitters can be created by changing the parabolic equation, adding a lifetime parameter:
https://sio2interactive.forumotion.net/sio2-engine-f3/particle-systems-explosion-t568.htm

Haven't found a good way to cull or re-use the allocated particles, through, but the memory footprint isn't too bad... I should probably create a pool of emitter systems and cycle through them.

Hope that helps,
--yarri