{"id":6518,"date":"2026-06-05T18:15:01","date_gmt":"2026-06-05T16:15:01","guid":{"rendered":"https:\/\/www.swissrocketman.fr\/Wordpress\/?p=6518"},"modified":"2026-08-08T14:32:42","modified_gmt":"2026-08-08T12:32:42","slug":"laser-a-colorant-2-j-candela-700ns","status":"publish","type":"post","link":"https:\/\/www.swissrocketman.fr\/Wordpress\/laser-a-colorant-2-j-candela-700ns\/","title":{"rendered":"Laser \u00e0 colorant 2 J CANDELA 700ns"},"content":{"rendered":"
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La cavit\u00e9 laser se compose d’un r\u00e9flecteur utilisant un tri-prisme ce qui \u00e9vite le r\u00e9glage de celui-ci car la propri\u00e9t\u00e9 de celui-ci est de renvoyer la lumi\u00e8re \u00e0 sa source. L’autre cot\u00e9 se trouve une lame de saphir faisant office de miroir de sortie avec une r\u00e9flectance de 16%.<\/h4>\n<\/div><\/section><\/p><\/div>\n
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Chaque tube flash ablatif est muni d’une capacit\u00e9 de 0.7 micro Farad 60 kV non inductif qui se d\u00e9charge au moyen d’un thyratron \u00e0 hydrog\u00e8ne. Les 2 tubes flash sont commut\u00e9 par un seul thyratron. Les tubes sont allum\u00e9s en continu par un courant simmer permettant une mont\u00e9e en courant plus controll\u00e9<\/h4>\n<\/div><\/section><\/p><\/div>\n
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Testes des 2 tubes flash que j’ai r\u00e9alis\u00e9 moi-m\u00eame car les anciens \u00e9taient cass\u00e9s. Il n’y a pas de colorant dans le tube en verre pour ne pas risquer en cas d’explosion d’un tube flash de devoir nettoyer toute la pi\u00e8ce asperg\u00e9e de colorant.<\/h4>\n<\/div><\/section>\n
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Les 2 tubes flashs sont cass\u00e9s il s’agit de refaire ces 2 tubes en utilisant des tubes de quartz de 7\/10 mm et 675mm de long avec des \u00e9lectrodes en laiton munie d’un embout en tungst\u00e8ne. Une \u00e9lectrode sur chaque tube est munie d’une entr\u00e9e de gaz permettant de tir\u00e9 au vide et de travailler\u00a0en r\u00e9gime ablatif (28J\/cm3)<\/h4>\n<\/div><\/section>\n
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Pr\u00e9paration de nouveaux tubes flash ablatifs en borosilicate diam\u00e8tre int\u00e9rieur 7mm et 650mm de long soit un volume de d\u00e9charge de 23 cm3 par tube et une \u00e9nergie de d\u00e9charge de 307J soit 13,3J\/cm3 d\u00e9but du r\u00e9gime ablatif .<\/h4>\n

A pleine \u00e9nergie chaque tube encaisse 750J soit 32J\/cm3.<\/h4>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/section>\n
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