____________
//sc3, using NodeProxy (public bus)
//a single burst of dissolution
(
var activity, nAtoms, tHalf;
tHalf = 0.7;
nAtoms = 1e+3;
activity = NodeProxy.audio(s,1);
activity.source = { 
	var n;
	n = max(0, nAtoms - PulseCount.ar(activity.ar, Impulse.ar(0)));
	Dust.ar( n * 2.log / tHalf)
};
activity.play
)

//sc3, using local bus
(
{
var activity, nAtoms, tHalf, n;
tHalf = 0.7;
nAtoms = 1e+3;

n = max(0, nAtoms - PulseCount.ar(LocalIn.ar(2), Impulse.ar(0)));
activity = Dust.ar( n * 2.log / tHalf);
LocalOut.ar(activity);
activity;
}.play;
) 

_____________
//sc2

//a single burst of dissolution
(
var thalf, natoms, activity;
thalf = 0.7;
natoms = 1e+3;
{ natoms = Plug.kr(natoms);
	activity = Dust.ar(2.log/thalf*natoms);
	Sequencer.ar({ natoms.source = natoms.source-1; 0.0 }, activity);
	activity
	}.play;
)

*****