Key challenges for the production of ELT M1 segments at Safran Reosc

被引：2

作者：

Frapolli, Camille ^{[1
]}

Bardon, Dominique ^{[1
]}

Ferachoglou, Nicolas ^{[1
]}

Chaussat, Gilles ^{[1
]}

Haret, Laurent-Daniel ^{[1
]}

Hatzigeorgopoulos, Justine ^{[1
]}

Armougom, Julie ^{[1
]}

Pron, Mathieu ^{[1
]}

Lesongeur, Pauline ^{[1
]}

Boillet, Frederic ^{[2
]}

Bourgois, Remi ^{[2
]}

Denis, Alain ^{[2
]}

Julienne, Sebastien ^{[2
]}

Gouedard, Marc ^{[2
]}

Foerster, Andreas ^{[3
]}

Cayrel, Marc ^{[3
]}

机构：

[1] Safran Reosc, Ave Tour Maury, F-91280 St Pierre Perray, France

[2] Safran Elect & Def, Ave Hauts Chaume, F-86280 St Benoit, France

[3] ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany

来源：

ADVANCES IN OPTICAL AND MECHANICAL TECHNOLOGIES FOR TELESCOPES AND INSTRUMENTATION V | 2022年 / 12188卷

关键词：

segmented mirror; polishing; metrology; ion beam figuring; ELT; bonding; surface deformation; factory; 4.0;

D O I：

10.1117/12.2626800

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In 2017, the European Southern Observatory (ESO) awarded a contract for the manufacturing of the segments of the primary mirror for the Extremely Large Telescope (ELT) to Safran Reosc. Since then, we designed a production unit dedicated for ELT M1. From spherical mirror blanks, we first glue 39 pads per segment. We then shape, polish and cut the segments with 133 different off-axis aspheric definitions. We finish them to nanometer accuracy using ion beam figuring and a fully automated interferometric test bench. Now manufacturing has begun, we present the solutions and methods that we developed to manufacture more than one segment per day.

引用

页数：13

共 50 条

[41] Distribution and stability of aflatoxin M1 during production and storage of yoghurt
Govaris, A
Roussi, V
Koidis, PA
Botsoglou, NA
FOOD ADDITIVES AND CONTAMINANTS PART A-CHEMISTRY ANALYSIS CONTROL EXPOSURE & RISK ASSESSMENT, 2002, 19 (11): : 1043 - 1050
[42] Distribution of aflatoxin M1 during production of sheep and goat cheeses
Vaz, Andreia
Mendonca, Alvaro
Rodrigues, Paula
Venancio, Armando
JOURNAL OF FOOD PROCESSING AND PRESERVATION, 2022, 46 (11)
[43] The behavior of aflatoxin M1 during lactic cheese production and storage
Einolghozati, Mahtab
Heshmati, Ali
Mehri, Freshteh
TOXIN REVIEWS, 2022, 41 (04) : 1163 - 1171
[44] FATE OF AFLATOXIN M1 DURING PRODUCTION AND STORAGE OF CRESCENZA CHEESE
Cattaneo, T. M. P.
Monti, L.
Panarelli, E. V.
Francolino, S.
Bertuzzi, T.
Pietri, A.
ITALIAN JOURNAL OF FOOD SCIENCE, 2008, 20 (04) : 463 - 470
[45] Determination of Seasonal Distribution of Aflatoxin M1 Level in Cheese Production
Cetin, Bayram
Ozcan, Yilmaz
Aloglu, Hatice Sanlidere
Becker, Andre
Abdulmawjood, Amir
JOURNAL OF FOOD SAFETY AND FOOD QUALITY-ARCHIV FUR LEBENSMITTELHYGIENE, 2019, 70 (01): : 17 - 22
[46] Eicosanoid production by macrophages during inflammation depends on the M1/M2 phenotype
Cui, Jing
Shan, Kai
Yang, Qin
Chen, Wei
Feng, Ninghan
Chen, Yong Q.
PROSTAGLANDINS & OTHER LIPID MEDIATORS, 2022, 160
[47] Transaminases Provide Key Chiral Building Blocks for the Synthesis of Selective M1/M4 Agonists
Thomson, Christopher G.
Boss, Kelly
Calhoun, Amy
Fridrich, Cary
Gardinier, Kevin M.
Hall, Edward C.
Jendza, Keith
Kirman, Louise
Labbe-Giguere, Nancy
Laumen, Kurt
Qian, Ming
Sanyal, Sanjit
Shultz, Michael D.
Snajdrova, Radka
Tan, Kian
Wang, Kate Yaping
Yang, Fan
Gao, Feng
Hong, Tao
Dale, Elena
Kuzmiski, Brent
Ortuno, Danny
Palacios, Daniel S.
ACS MEDICINAL CHEMISTRY LETTERS, 2023, 14 (12): : 1692 - 1699
[48] Efficient Conjugation of Aflatoxin M1 With Bovine Serum Albumin through Aflatoxin M1-(O-carboxymethyl) Oxime and Production of Anti-aflatoxin M1 Antibodies
Khademi, Fatemeh
Mohammadi, Masoud
Kiani, Amir
Baghdadabadi, Reza Haji Hosseini
Parvaneh, Shahram
Mostafaie, Ali
JUNDISHAPUR JOURNAL OF MICROBIOLOGY, 2015, 8 (04)
[49] Friction Stir Welding of M1 Copper Alloy in the Production of Power Equipment
Boitsov A.G.
Pleshakov A.S.
Siluyanova M.V.
Baranov A.A.
Russian Engineering Research, 2020, 40 (03) : 249 - 252
[50] HYPOTHESIS OF M1 DOMINANCE IN 3/2+-ISOBAR PRODUCTION REACTIONS
RENNINGE.GH
SARMA, KVL
PHYSICAL REVIEW, 1969, 178 (05): : 2201 - +

← 1 2 3 4 5 →