Hello there,
As discussed at the meeting, I would like to reintroduce the error
estimate of the holding field map. The attachment is the errors of the
Genya's holding angles, which are estimated from the angular
uncertainly of 0.9 deg. (azimuth) and 1.6 deg. (polar) with the
position resolution of 1 mm and the 0.1 % component errors. The
resulting errors are quite big (~1.5 deg.).
If one could measure the field when the angular uncertainty is 1
deg. then the holding angle uncertainly would result ~0.7 deg. Right
now I am calculating them with the 1.8 deg. (=sqrt(0.6**2+1.6**2)) hole
probe
angular uncertainty.
By the way, in order to estimate these uncertainties, one needs to know the
approximate idea of the 3d holding field in the first place. For my
case, the 3d map is already constructed from Karen's measurements and
the map is accurate within 6 Gauss now.
I hope this is clear enough to you,
Aki
L500T500_gt_Jan2005.dat
number of lines = 53
z(cm) th(deg) d_th (deg)
-22.0 59.0234 1.8286
-21.0 49.1927 1.5679
-20.0 43.5166 1.4702
-19.0 39.0312 1.4394
-18.0 36.0677 1.4383
-17.0 33.9008 1.4466
-16.0 32.4745 1.4550
-15.0 31.2989 1.4643
-14.0 30.5377 1.4702
-13.0 30.0229 1.4737
-12.0 29.7449 1.4743
-11.0 29.5774 1.4740
-10.0 29.5371 1.4719
-9.0 29.6514 1.4676
-8.0 29.9090 1.4612
-7.0 30.3060 1.4527
-6.0 30.7787 1.4432
-5.0 31.3650 1.4321
-4.0 31.9615 1.4213
-3.0 32.7785 1.4072
-2.0 33.5159 1.3951
-1.0 33.9639 1.3878
0.0 34.0933 1.3856
1.0 33.9334 1.3880
2.0 33.3659 1.3969
3.0 32.7211 1.4075
4.0 31.8092 1.4230
5.0 30.9533 1.4383
6.0 30.1847 1.4528
7.0 29.3843 1.4683
8.0 28.8209 1.4801
9.0 28.4261 1.4892
10.0 28.1027 1.4976
11.0 27.9496 1.5032
12.0 27.8695 1.5082
13.0 27.8833 1.5123
14.0 28.0759 1.5139
15.0 28.3778 1.5153
16.0 29.1230 1.5114
17.0 30.0853 1.5070
18.0 31.3033 1.5037
19.0 33.3904 1.4984
20.0 36.5871 1.5021
21.0 40.7334 1.5384
22.0 47.3984 1.6613
23.0 57.7412 1.9713
24.0 75.1877 2.5132
25.0 102.2739 2.6628
26.0 123.5967 2.1361
27.0 139.7025 1.7451
28.0 148.8421 1.6690
29.0 155.0363 1.6872
30.0 159.1108 1.7185
Opening L250T500_gt_Jan2005.dat
number of lines = 27
z(cm) th(deg) d_th (deg)
-22.0 73.3130 1.8712
-20.0 60.9776 1.5641
-18.0 53.8469 1.4059
-16.0 50.0729 1.3449
-14.0 47.6989 1.3196
-12.0 46.4790 1.3098
-10.0 45.8645 1.3053
-8.0 45.8995 1.3032
-6.0 46.2966 1.3023
-4.0 46.9873 1.3031
-2.0 47.7569 1.3053
0.0 48.1810 1.3070
2.0 47.5524 1.3046
4.0 46.3644 1.3018
6.0 45.2728 1.3018
8.0 44.5351 1.3041
10.0 44.3004 1.3072
12.0 44.5458 1.3115
14.0 45.3862 1.3186
16.0 47.1337 1.3349
18.0 50.3444 1.3778
20.0 56.4721 1.4997
22.0 67.3441 1.7808
24.0 86.0872 2.1369
26.0 111.8773 1.9417
28.0 131.7927 1.5238
30.0 144.3721 1.4728
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