High Power Laser and Particle Beams, Volume. 34, Issue 6, 064008(2022)
Radiation protection analysis of 95 MeV RF electron linac
Figures & Tables(7)
Fig. 1. Overall geometric modeling of accelerator and surrounding protective shielding wall
Fig. 3. Dose equivalent distribution produced by the beam moving from the front of the beam dump(horizontal plane)
Fig. 4. Dose equivalent distribution produced by the beam moving from the front of the beam dump (vertical plane)
Fig. 5. Dose equivalent distribution, at the height where the concrete thickness of the ceiling is 0.5 m, produced by the beam moving from the front of the beam dump (horizontal plane)
Table 1. [in Chinese]
View tableView in ArticleTable 1. [in Chinese]
No. important position normalized divergence/ (mm·mrad−1) geometric divergence/ (mm·mrad−1) beam size/ mm(rms) beam size/cm (FWHM) divergence angle/ mrad divergence angle/mrad (FWHM) ① origin point 0.20000 0.02044 0.25000 0.05888 0.08176 0.19254 ② YAG1 0.21551 0.02203 0.23785 0.05601 0.09260 0.21807 ③ start of acceleration1 0.24167 0.02470 0.21736 0.05119 0.11363 0.26759 ④ end of acceleration1 0.31111 0.00318 0.16296 0.03838 0.01951 0.04595 ⑤ YAG2 0.33449 0.00342 0.14465 0.03406 0.02363 0.05566 ⑥ start of acceleration 2 0.34213 0.00350 0.13867 0.03266 0.02522 0.05938 ⑦ end of acceleration 2 0.41157 0.00221 0.08427 0.01984 0.02627 0.06187 ⑧ YAG3 0.42384 0.00228 0.07466 0.01758 0.03054 0.07192 ⑨ YAG4 0.44005 0.00237 0.06196 0.01459 0.03820 0.08996 ⑩ interaction point 0.50000 0.00269 0.01500 0.00353 0.17930 0.42225 ⑪ YAG5 0.50000 0.00269 0.43929 0.10345 0.17930 0.42225 ⑫ start of bending magnetic field 0.50000 0.00269 0.48788 0.11489 0.17930 0.42225 ⑬ YAG6 0.50000 0.00269 0.62415 0.14699 0.17930 0.42225 ⑭ front end of beam dump 0.50000 0.00269 0.79744 0.18780 0.17930 0.42225
Table 1. Parameters of beam at important positions
View tableView in ArticleTable 1. Parameters of beam at important positions
No. important position remnant beam/% normalization parameter path length/cm path length after interaction point/cm beam energy/MeV γ ① origin point 100.000 0.00038 0.00 — 5 9.785 ② YAG1 99.962 0.00064 67.00 — 5 9.785 ③ start of acceleration1 99.898 0.00170 180.00 — 5 9.785 ④ end of acceleration1 99.727 0.00057 480.00 — 50 97.847 ⑤ YAG2 99.670 0.00019 581.00 — 50 97.847 ⑥ start of acceleration 2 99.651 0.00170 614.00 — 50 97.847 ⑦ end of acceleration 2 99.481 0.00030 914.00 — 95 185.91 ⑧ YAG3 99.450 0.00040 967.00 — 95 185.91 ⑨ YAG4 99.411 0.00147 1037.00 — 95 185.91 ⑩ interaction point 99.263 0.00139 1296.00 0.00 95 185.91 ⑪ YAG5 99.124 0.00015 1541.00 245.00 95 185.91 ⑫ start of bending magnetic field 99.109 0.00043 1568.10 272.10 95 185.91 ⑬ YAG6 99.066 0.00055 1644.10 348.10 95 185.91 ⑭ front end of beam dump 99.011 0.99011 1740.75 444.75 95 185.91
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Dikai Li, Leifeng Cao, [in Chinese], Zheng Zhou, Qiuhong Chen, Chunhui Zhang, Yanmeng Dai, Jian Yu, Miaomiao Yan, Jialing Deng, Xue Wang, [in Chinese]. Radiation protection analysis of 95 MeV RF electron linac[J]. High Power Laser and Particle Beams, 2022, 34(6): 064008
Paper Information
Category: Particle Beams and Accelerator Technology
Received: Nov. 25, 2021
Accepted: --
Published Online: Jun. 2, 2022
The Author Email: Leifeng Cao (caoleifeng@sztu.edu.cn)
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