Optimus

 

If - Ie Data Table

 

small focus parameters at 60kV

If = filament current
Ie = emission current
boost time = time to bring the temperature up to a higher mA value
blank time = time to cool down to a lower mA value

The steps at If are always the same within a kV table (33mA in this case), Ie values and boost time values must rise, the blank time values must fall with the increasing If

There must be no identical values like in the boost time column (*). If such tables appear use mA control firmware 4512 113 20212.

If (mA)
Ie (µA)
boost time (ms)
blank time (ms)
3113
100
0
688
3146
121
* 19
663
3179
143
* 19
644
3212
167
* 19
626
3245
193
* 19
608
3278
223
* 19
594
3311
258
* 20
577
3344
298
* 20
558
3377
345
* 20
543
3410
399
* 21
527
3443
461
* 21
513
3476
532
22
499
3509
613
39
486
3542
705
40
473
3575
809
42
459
3608
925
46
446
3641
1056
48
435
3674
1205
49
423
3707
1372
52
413
3740
1563
55
401
3773
1778
58
390
3806
2022
60
379
3839
2297
63
369
3872
2604
66
358
3905
2949
69
348
3938
3332
71
339
3971
3756
74
329
4004
4225
76
319
4037
4742
79
311
4070
5308
82
303
4103
5934
86
295
4136
6630
89
287
4169 7408 92 278
4202 8279 96 268
4235 9255 99 259
4268 10347 101 251
4301 11568 104 243
4334 12924 107 235
4367 14419 109 226
4400 16053 113 219
4433 17827 115 212
4466 19740 118 203
4499 21795 121 198
4532 23991 123 190
4565 26333 126 185
4598 28843 128 178
4631 31551 131 172
4664 34485 134 167
4697 37675 137 161
4730 41150 139 154
4763 44938 142 149
4796 49062 145 142
4829 53523 148 138
4862 58314 150 130
4895 63429 154 127
4928 68862 157 121
4961 74608 159 116
4994 80661 163 111
5027 87032 166 105
5060 93756 169 101
5093 100866 171 94
5126 108397 175 91
5159 116381 178 87
5192 124853 180 82
5225 133829 184 77
5258 143288 187 72
5291 153205 190 68
5324 163556 193 64
5357 174315 197 60
5390 185457 200 56
5423 196935 203 52
5456 208669 207 47
5489 220576 211 42
5522 232573 214 40
5555 244579 217 36
5588 256517 221 32
5621 268349 226 28
5654 280055 229 25
5687 291614 233 22
5720 303002 236 18
5753 314194 242 14
5786 325087 247 11
5819 335534 252 6
5852 345385 257 3
5885 354490 259 0