High Power Laser and Particle Beams, Volume. 36, Issue 6, 064002(2024)
Calibration technology of intense pulse electron beam position monitor
Figures & Tables(15)
Fig. 1. Relative position sketch of beam pipe, beam position and resistive ring monitor (RRM)
Fig. 3. Comparatison between set positions and calculated positions of different calibration in condition of
Fig. 4. Comparison between set positions and calculated positions of different calibration in condition of
Fig. 6. Measurment of resistive ring monitor in calibration system and signal processing result
Fig. 7. Position error distribution in
Fig. 8. Set position and measured position of different calibration method
Table 1. Calculated results of different normalization, calibration and polynomial fit
View tableView in ArticleTable 1. Calculated results of different normalization, calibration and polynomial fit
monitor parameter normalization calibration average of absolute value of position error/mm n=1 n=2 n=3 n=4 s1=1 minus/sum no calibration 2.77 2.77 2.77 2.77 s2=1 planar 0.17 0.75 23.04 23.93 s3=1.05 axis 0.23 0.23 1.75 1.67 s4=0.9 45° line 0.22 0.24 3.63 3.74 Δx0=0 log ratio no calibration 2.85 2.85 2.85 2.85 Δy0=0 planar 0.06 0.06 7.56 7.56 θx=0 axis 0.08 0.08 0.61 0.61 θy=0 45° line 0.07 0.07 1.20 1.20 s1=1 minus/sum no calibration 3.00 3.00 3.00 3.00 s2=1 planar 0.19 2.44 26.92 28.27 s3=1 axis 0.25 0.50 2.15 1.75 s4=1 45° line 0.27 0.37 3.67 2.92 Δx0=1 mm log ratio no calibration 3.00 3.00 3.00 3.00 Δy0=−2 mm planar 0.06 0.82 8.90 9.45 θx=0 axis 0.09 0.17 0.76 0.75 θy=0 45° line 0.09 0.11 1.17 1.18 s1=1 minus/sum no calibration 0.57 0.57 0.57 0.57 s2=1 planar 0.18 1.66 5.30 5.40 s3=1.05 axis 0.39 0.40 1.04 1.03 s4=0.9 45° line 0.55 0.56 2.04 1.97 Δx0=1 mm log ratio no calibration 0.39 0.39 0.39 0.39 Δy0=−2 mm planar 0.06 0.84 1.82 1.94 θx=0.03 rad axis 0.37 0.37 0.49 0.49 θy=0.04 rad 45° line 0.50 0.50 0.55 0.55
Table 2. Calculated results of different monitor parameter and calibration in conditions of log ratio and
n =1View tableView in ArticleTable 2. Calculated results of different monitor parameter and calibration in conditions of log ratio and
n =1monitor parameter average of absolute value of position error/mm no calibration planar axis 45° line s1=1.05, s2=0.9, s3=0.8, s4=1.1; Δx0=0, Δy0=0; θx =0, θy =0 8.74 0.06 0.08 0.07 s1=s2=1, s3=1, s4=1；Δx0=-3 mm, Δy0=4 mm, θx =0,θy =0 4.00 0.05 0.06 0.06 s1=s2=1, s3=1, s4=1; Δx0=0, Δy0=0,θx =-0.04 rad, θy =0.05 rad 0.21 0.03 0.21 0.24 s1=1.05, s2=0.9, s3=0.8, s4=1.1；Δx0=-3 mm, Δy0=4 mm, θx =-0.04 rad, θy =0.05 rad 2.37 0.10 0.51 0.60 s1=s2=1, s3=1.05, s4=0.9；Δx0=1 mm, Δy0=-2 mm, θx =0.03 rad, θy =0.04 rad 0.39 0.06 0.37 0.50
Table 3. Comparison between characteristic plane calibration and others
View tableView in ArticleTable 3. Comparison between characteristic plane calibration and others
monitor parameters average of absolute value of position error/mm s1=s2=1, s3=1.05, s4=0.9; Δx0=1 mm, Δy0=−2 mm; θx=0.03 rad, θy =0.04 rad no calibration planar axis 45° line characteristic plane 1 mm/point 2 mm/point 3 mm/point 0.3905 0.0634 0.3701 0.4985 0.0649 0.0653 0.0659
Table 4. Processing results of line calibration experiment in different position span and range
View tableView in ArticleTable 4. Processing results of line calibration experiment in different position span and range
span and range normalization klx(1) klx (0) kly(1) kly(0) xerror/mm yerror/mm 0.5 mm/point −10 mm～10 mm minus/sum 83.38 0.15 94.62 1.63 0.0437 0.0479 log ratio 20.66 0.17 23.35 1.62 0.0230 0.0284 1 mm/point −10 mm～10 mm minus/sum 83.39 0.15 94.65 1.63 0.0437 0.0483 log ratio 20.65 0.17 23.34 1.62 0.0232 0.0285 3 mm/point −10 mm～10 mm minus/sum 83.24 0.16 94.64 1.63 0.0442 0.0487 log ratio 20.64 0.17 23.34 1.62 0.0234 0.0284 0.5 mm/point −8 mm～8 mm minus/sum 82.95 0.16 94.02 1.63 0.0451 0.0499 log ratio 20.62 0.18 23.29 1.62 0.0244 0.0304 0.5 mm/point −6 mm～6 mm minus/sum 82.41 0.17 93.63 1.63 0.0594 0.0587 log ratio 20.55 0.18 23.27 1.63 0.0336 0.0333
Table 5. Processing results of characteristic plane calibration experiment in different position span and range
View tableView in ArticleTable 5. Processing results of characteristic plane calibration experiment in different position span and range
span range kpx(0) kpx(1) kpx(2) kpy(0) kpy(1) kpy(2) xerror/mm yerror/mm 1 mm/point ±10 mm 0.08 21.47 −1.22 −0.24 1.21 22.12 0.0249 0.0218 2 mm/point ±10 mm 0.08 21.47 −1.22 −0.24 1.21 22.12 0.0251 0.0224 3 mm/point ±10 mm 0.08 21.47 −1.22 −0.24 1.21 22.12 0.0254 0.0218 1 mm/point ±10 mm 0.08 21.47 −1.22 −0.24 1.21 22.12 0.0253 0.0218 1 mm/point ±8 mm 0.08 21.47 −1.22 −0.24 1.21 22.12 0.0255 0.0228 1 mm/point ±6 mm 0.08 21.47 −1.22 −0.24 1.21 22.12 0.0249 0.0218
Table 6. Processing results of plane calibration experiment in different position range
View tableView in ArticleTable 6. Processing results of plane calibration experiment in different position range
position range/mm kpx(0) kpx(1) kpx(2) kpy(0) kpy(1) kpy(2) xerror/mm yerror/mm ±10 0.24 21.51 −1.19 −0.27 1.21 21.91 0.0235 0.0222 ±8 0.25 21.50 −1.19 −0.27 1.22 21.92 0.0237 0.0223 ±6 0.25 21.55 −1.16 −0.27 1.20 21.91 0.0266 0.0225 ±4 0.26 21.66 −1.15 −0.27 1.20 21.81 0.0438 0.0302
Table 7. Processing results of plane calibration experiment using different calibration method
View tableView in ArticleTable 7. Processing results of plane calibration experiment using different calibration method
calibration kx(0) kx(1) kx(2) ky(0) ky(1) ky(2) xerror/mm yerror/mm 45° line 0.23 20.44 − −0.32 − 23.33 0.3778 0.4463 −45° line 0.24 22.84 − −0.25 − 20.87 0.4239 0.3751 axis 0.24 21.56 − −0.29 − 21.91 0.2976 0.3086 characterictic plane 0.25 21.50 −1.21 −0.27 1.21 21.92 0.0243 0.0224 plane 0.24 21.51 −1.19 −0.27 1.21 21.91 0.0235 0.0222
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Qin Li, Zhaoyi Zhang, Wei Jiang, Yunlong Liu, Yongwei Wang, Quanhong Long. Calibration technology of intense pulse electron beam position monitor[J]. High Power Laser and Particle Beams, 2024, 36(6): 064002
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Received: Jan. 24, 2024
Accepted: Mar. 29, 2024
Published Online: Jun. 3, 2024
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