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TJ-II:Construction: Difference between revisions
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[[TJ-II]] is a highly flexible medium-size fusion device of the Heliac type constructed at [[CIEMAT]] between 1991 and 1997. The [[TJ-II:Magnetic surface mapping|magnetic surface mapping]] was measured at low magnetic fields between December 1996 and January 1997, with excellent results. From January to September 1997 the commissioning of the device up to the design values was done, together with the assembly of the basic diagnostic equipment. | [[TJ-II]] is a highly flexible medium-size fusion device of the Heliac type constructed at [[CIEMAT]] between 1991 and 1997. The [[TJ-II:Magnetic surface mapping|magnetic surface mapping]] was measured at low magnetic fields between December 1996 and January 1997, with excellent results. From January to September 1997 the commissioning of the device up to the design values was done, together with the assembly of the basic diagnostic equipment. | ||
<ref> | <ref>M. Blaumoser et al, ''Construction, commissioning and first results of the Spanish Stellarator TJ-II'', [[doi:10.1109/FUSION.1997.687032|Fusion Engineering, Proc. 17<sup>th</sup> IEEE/NPSS Symposium '''1''' (1997) 257 - 260]]</ref> | ||
<ref>[http://www.ornl.gov/sci/fed/stelnews/pdf/sn48.pdf | <ref>C. Alejaldre et al, ''TJ-II assembly completed'', [http://www.ornl.gov/sci/fed/stelnews/pdf/sn48.pdf Stellarator news '''48''' (1996) 1]</ref> | ||
<ref>[[Media:ALONSO.pdf|J. Alonso, ''Design, construction and assembly of the Spanish stellarator TJ-II. Engineering experience'' (2007)]]</ref> | <ref>[[Media:ALONSO.pdf|J. Alonso, ''Design, construction and assembly of the Spanish stellarator TJ-II. Engineering experience'' (2007)]]</ref> | ||
=== Vacuum vessel === | === Vacuum vessel === | ||
The all-metal [[TJ-II:Vacuum system|TJ-II vacuum vessel]] has a helical geometry and has 96 [[TJ-II:Ports|ports]]. | The all-metal [[TJ-II:Vacuum system|TJ-II vacuum vessel]] has a helical geometry and has 96 [[TJ-II:Ports|ports]]. | ||
<ref> | <ref>J. Botija and M. Blaumoser, '' Vacuum vessel design for the TJ-II device'', [[doi:10.1109/FUSION.1991.218780|14<sup>th</sup> IEEE/NPSS Symposium on Fusion Engineering '''2''' (1991) 992-995]]</ref> | ||
The vacuum vessel is made of non-magnetic steel (304 LN) with a thickness of 10 mm. | The vacuum vessel is made of non-magnetic steel (304 LN) with a thickness of 10 mm. | ||
The octants with flanges have been manufactured separately and were assembled in-situ by welding. This assembly was done directly around the central conductor CC/HX, already placed in position. The CC/HX coil is outside of the vacuum vessel thanks to a helical groove built into the vessel. | The octants with flanges have been manufactured separately and were assembled in-situ by welding. This assembly was done directly around the central conductor CC/HX, already placed in position. The CC/HX coil is outside of the vacuum vessel thanks to a helical groove built into the vessel. | ||