ALMA band 10 optics tolerance analysis
ALMA band 10 optics tolerance analysis
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ALMA Band 10 光学公差分析
DOI:
10.1093/ietele/e89-c.2.170
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
K. Kaneko
中科院分区:
文献类型:
--
作者:
M. Candotti;Y. Uzawa;S. Shitov;Y. Fujii;K. Kaneko
The effects of mechanical tolerances for the cryostat and ante nna inte rface le vels and cold o ptics me chanical structure h ave been s tudied in relat ion to th e los s of ap erture efficiency and separation an gle bet ween the t wo o rthogonal main beams of the ALMA band 10 front-end. Simple ABCD ray tracing m ethod and full elect romagnetic p hysical op tics simulations were u sed to as sess th e op tics p erformance u nder misalignment as sumptions. As exp ected, tigh t toleran ces of t he cold op tics ar e required fo r th e fu lfilment of the ALMA f ront- end specifications.