oldfogey:
Not used, but it should be. The way Communion is distributed now guarantees that particles are dropped to the ground. I also feel sad when the altar servers are just sitting while Communion is distributed. Distributing Communion was always my favorite part of the Mass when I was an altar boy.
St. Agnes, in St. Paul, uses the paten and goes two better.
First of all, right before Holy Communion in the Mass, the Altar Boys rise, meet at the foot of the altar, genuflect together and then reverently move down to the communion rail (you didn’t think they receive standing up there, did you) and raise a linen cloth which is fastened to the back of the rail up and over the rail so that the rail almost becomes a tiny altar table.
Then they reverently go get their patens and return to their places at the foot of the altar. After the priest has given them the Eucharist, then one reverently leads the celebrant to the Epistle side communion rail for giving Holy Communion to the faithful.
A second priest (you didn’t think they would us EMs, did you) takes the Gospel side in the same fashion. The Altar Boys use the patens in the prescribed fashion (under the chin, no bumping into the adams apple).
The communion rail linens are returned to their storage position after Communion is over. Reverently. No tennis shoes even.
I doubt that any particles make it to the floor.
One really great thing about kneeling at the communion rail for reception is that you do get 30 seconds to a minute or so to compose yourself properly. No worrying about stepping on the heel of the person in front of you or planning how to make the reverential bow now deemed proper.