100 TT T1747
© TEST 38: N = 0.84 x 107
a
a TEST 43: N = 1.68 x 107
+ = 0.0311
a
PARTICLE CHARGE, ELEMENTARY UNIT
TTT TTT PY
-
10
Hs
|
7
t = 0.0622
_]
4
4
4
4
4
DIFFUSION
CHARGING (WHITE)
b—
a
y
-
“|
FIELD CHARGING
a
yet ititt
0.04
0.1
271
7
(WHITE)
4
Lot i tii
1.0
PARTICLE DIAMETER,
300
_|
Fig. 6—Experimental
particle charge for p=
0.01 atm and E = 240
volts/em.
2
TTT TT
TTT TT TT
o TESTS 35, 36, AND 37; Nt = 1.05 x 108
too Le
H—
4 TESTS 38 AND 43: Nr = 0.523 x 108
TEST 42: Nt = 0.27 x 10°
x TEST 46: Nt = 1.85 x 108
.
°
°
_
4
|
a
aoe
i
—
z
|
—
>
=
4
[
-
=>
ao
=
4
<
-_—
g
=
S
a
ws
©=
L
~
wi
frm
_
WU
=
4
a
=
—
T
|
“|
4
S
7
<
Fig. (/—-Experimental
particle charge for p=
0.01 atm and E = 240
volts/cem.
ZF
10 ~
U
a.
yl
0.04
PARTICLE DIAMETER, p
2