200 TTT TTT TOOT be OTT TT TTY 275 — _t — = é © TEST 50: Nt=1.61 x 10 Lo 4 TEST Sl: Nr=5.31 x 108 — 4 - i—— = Zz 2 Z 100 }— 2Zz fab > o£ £ 4 | Sf ok Sk ak o ~ ~ 4 a ao 4 bane = oof - a w ded _ os < a 10 }— om | = C = Fig. 11—Experimental > 7 L_ particle charge for p= 0.1 atm and E = 2730 volits/cm. — pertiritt 0.1 po tt PARTICLE DIAMETER, ; Fig. 12—Experimenial particle mobility for p = 0.f atm and E = 2730 volts/cm. TT TTT a a Oe © TEST 50: Nt = 1.81 x 108 a TEST 5]: Nt = 5.31 x 108 £ T PARTICLE MOBILITY, CM?/SEC-VOLT 0.05 1.0 0.03 -- 0.02 - 0.01 + ob ttt pit 0.1 po 1.0 PARTICLE DIAMETER,

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