Particle question

[pig132]

Okay so I've been toying around with particles and had alot of fun with them but one thing I can't seem to figure out how to do.

I'm looking to have it sortof pulse, and have 1 or 2 particles pulse in each direction (1degree) around the player. If that makes sense.

Like a pulse of a perfect circle made of particles pulse around the player.

Lol, sorry if this doesn't make sense.

Can I do that with a modifier? Multiple modifiers?

If anyone could help me or give me a push on how to do it that would be greatly appreciated.