{"id":1560,"date":"2020-03-02T17:02:55","date_gmt":"2020-03-02T09:02:55","guid":{"rendered":"http:\/\/www.wmxray.com\/?p=1560"},"modified":"2023-11-27T10:18:47","modified_gmt":"2023-11-27T02:18:47","slug":"what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes","status":"publish","type":"post","link":"https:\/\/wmxray.com\/vi\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/","title":{"rendered":"What is the difference between closed and open microfocus X-ray tubes?"},"content":{"rendered":"

If you have read the previous two articles that introduced closed and open micro-focus X-ray tubes, you may already know the fundamental difference between them: whether the tube can be opened to replace the filament.<\/h3>\n

Below, we use a comparison table to understand the difference between them:<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Type<\/strong><\/th>\nClosed<\/strong><\/th>\nOpen<\/strong><\/th>\n<\/tr>\n<\/thead>\n
Price<\/strong><\/td>\n>20000USD<\/td>\n>80000USD<\/td>\n<\/tr>\n
Lifetime<\/strong><\/td>\n>10000h<\/td>\n500-1000h each filament<\/td>\n<\/tr>\n
Tube voltage<\/strong><\/td>\n<150kV<\/td>\n>160kV<\/td>\n<\/tr>\n
Focal spot<\/strong><\/td>\n5\u03bcm<\/td>\n0.2\u03bcm<\/td>\n<\/tr>\n
X-ray angle<\/strong><\/td>\n\u2264100\u00b0<\/td>\n\u2265150\u00b0<\/td>\n<\/tr>\n
FOD<\/strong><\/td>\n\u224810mm<\/td>\n0.5-1mm<\/td>\n<\/tr>\n
Vacuum system<\/strong><\/td>\nKeep vacuum seal<\/td>\nVacuumize before use<\/td>\n<\/tr>\n
Pre-heating time<\/strong><\/td>\n\u224815min<\/td>\n\u224840min<\/td>\n<\/tr>\n
Consumables<\/strong><\/td>\nNone<\/td>\nFilament, seal ring<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

In general, the performance and parameters of the open microfocus X-ray tube surpass the closed type in all aspects, so it also pays the corresponding price: several times the price, longer pre-heating time, shorter Filament lifetime and higher maintenance costs.<\/h3>\n

 <\/p>\n

\"Hamamatsu

Hamamatsu microfocus X-ray tubes<\/p><\/div>\n

It can be said that the advantages of an open microfocus X-ray tube are good performance, and the advantages of a closed microfocus X-ray tube are low price and easy to use.<\/h3>\n

The differences between them lead to a different application, for example, closed microfocus X-ray tubes are enough to detect ordinary printed circuit boards with a thickness of 5 mm, or LED light boards. And when people need to detect thicker products, or look for defects less than 5 microns, only open-type microfocus X-ray tubes you can choose.<\/h3>","protected":false},"excerpt":{"rendered":"

If you have read the previous two articles that introduced […]<\/p>","protected":false},"author":1,"featured_media":3159,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12],"tags":[],"class_list":["post-1560","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"\nWhat is the difference between closed and open microfocus X-ray tubes? - Wellman X-Ray<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/wmxray.com\/vi\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is the difference between closed and open microfocus X-ray tubes? - Wellman X-Ray\" \/>\n<meta property=\"og:description\" content=\"If you have read the previous two articles that introduced [...]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/wmxray.com\/vi\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/\" \/>\n<meta property=\"og:site_name\" content=\"Wellman X-Ray\" \/>\n<meta property=\"article:published_time\" content=\"2020-03-02T09:02:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-11-27T02:18:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/wmxray.com\/wp-content\/uploads\/2023\/11\/10418_766bc1d0e0e802d3d051f46ca9c01402.png\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"wellman\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"wellman\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/wmxray.com\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/wmxray.com\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/\"},\"author\":{\"name\":\"wellman\",\"@id\":\"https:\/\/wmxray.com\/#\/schema\/person\/f394f706c1859b35ce4cae03c200b6f2\"},\"headline\":\"What is the difference between closed and open microfocus X-ray tubes?\",\"datePublished\":\"2020-03-02T09:02:55+00:00\",\"dateModified\":\"2023-11-27T02:18:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/wmxray.com\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/\"},\"wordCount\":245,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/wmxray.com\/#organization\"},\"image\":{\"@id\":\"https:\/\/wmxray.com\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/wmxray.com\/wp-content\/uploads\/2023\/11\/10418_766bc1d0e0e802d3d051f46ca9c01402.png\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"vi\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/wmxray.com\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/wmxray.com\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/\",\"url\":\"https:\/\/wmxray.com\/what-is-the-difference-between-closed-and-open-microfocus-x-ray-tubes\/\",\"name\":\"What is the difference between closed and open microfocus X-ray tubes? 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