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Error Contribution BRT

Error Contribution BRT. Junko Katayama NAOJ / Ochanomizu University 2014/5/21. TMS design. ETM. BRT. GPT. L0. L2. L1. L3. L5. L4. QPD. Position Error Contribution to Gouy Phase difference L0,L1. OK. Error < ±1 [mm] required.

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Error Contribution BRT

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  1. Error ContributionBRT Junko Katayama NAOJ / Ochanomizu University 2014/5/21

  2. TMS design ETM BRT GPT L0 L2 L1 L3 L5 L4 QPD

  3. Position Error Contribution to GouyPhase difference L0,L1 OK Error < ±1 [mm] required

  4. Position Error Contribution toGouyPhase difference L2,L3 OK Error < ±5 [mm] required

  5. Position Error Contribution to GouyPhase difference L4,L5 OK OK

  6. RoCerror 1 ex1) RoC of BRTlens1 front side

  7. RoCerror 2 ex2) RoC of BRTlens2 front side

  8. RoCerror 2

  9. Conclusion 1. L1 between BRT lenses & L3 between GPT lenses are sensitive (Errors < ±1mm Required) 2. RoCerror can be compensated by L1

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