{"id":2472,"date":"2019-01-22T19:37:50","date_gmt":"2019-01-23T03:37:50","guid":{"rendered":"https:\/\/www.rbdinstruments.com\/blog\/?p=2472"},"modified":"2019-01-22T19:37:50","modified_gmt":"2019-01-23T03:37:50","slug":"04-500-old-style-x-ray-source-filament-conversion","status":"publish","type":"post","link":"https:\/\/www.rbdinstruments.com\/blog\/04-500-old-style-x-ray-source-filament-conversion\/","title":{"rendered":"04-500 Old style X-ray source filament conversion"},"content":{"rendered":"

The very early PHI 04-500 and 04-548 X-ray sources used a small filament that had couplers to make the connection between the X-ray source and the filament.<\/p>\n

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In addition, the couplers were held in place with a notched ceramic that had a special pointed set screw which pressed into a copper wire that in turn made the connection to the electrical feedthrough on the source.<\/p>\n

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This connection scheme worked well enough as long as you set the filaments properly and did not ramp the current up too quickly.\u00a0 Even then, the filaments were prone to warping out of shape over time.\u00a0 Also the couplers could loosen up and then the filaments would short out.<\/p>\n

PHI\u2019s solution was to redesign the filament where the filaments were brazed into a ceramic base instead of using couplers.\u00a0 This resulted in a very stable filament base where the filaments can\u2019t move at all and so they no longer warped out of position (unless you ran the filament current up too quickly).<\/p>\n

Recently I updated an older 04-500 X-ray source from the old style to the new style filaments.\u00a0 You can see the before and after in the pictures below.<\/p>\n

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This update will result in more stable X-ray source operation and extended filament lifetime.<\/p>\n

The new style filaments cost more than the old style filaments by quite a bit.\u00a0 But factoring in the improved performance, longer lifetime and reduced downtime it may be worth the additional cost.<\/p>\n

If you have an old style source please keep this filament conversion in mind the next time you need filaments or a complete source rebuild.<\/p>\n

Contact RBD Instruments for more information.<\/p>\n","protected":false},"excerpt":{"rendered":"

The very early PHI 04-500 and 04-548 X-ray sources used a small filament that had couplers to make the connection between the X-ray source and the filament.                   In addition, the couplers … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[164,160],"tags":[269,270,271],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p2DEXo-DS","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":501,"url":"https:\/\/www.rbdinstruments.com\/blog\/installing-the-old-style-filaments-in-an-04-500-or-04-548-x-ray-source\/","url_meta":{"origin":2472,"position":0},"title":"Installing the Old Style Filaments in an 04-500 or 04-548 X-ray Source","author":"Randy","date":"May 1, 2013","format":"gallery","excerpt":"In my previous two posts about the 04-500 and 04-548 X-ray source I showed you all the steps necessary to completely disassemble and reassemble the source and also how to install the new style filaments. Old style or new style? If your 04-500 or 04-548 X-ray Source has a white\u2026","rel":"","context":"In "X-ray Sources"","block_context":{"text":"X-ray Sources","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/x-ray-sources\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2013\/05\/04-500-04-548-old-style-filament.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":147,"url":"https:\/\/www.rbdinstruments.com\/blog\/installing-new-parts-in-a-phi-04-548-or-04-500-x-ray-source-new-style-filaments\/","url_meta":{"origin":2472,"position":1},"title":"Installing new parts in a PHI 04-548 or 04-500 X-ray Source: New Style Filaments","author":"Randy","date":"October 6, 2012","format":false,"excerpt":"This procedure and video will explain and show the steps required to reassemble the X-ray source that has the new style filaments. 04-548 Filament Installation Video Refer to this RBD TechSpot blog post for the disassembly procedure and tools required. 04-548 X-ray source reassembly procedure This procedure assumes that you\u2026","rel":"","context":"In "X-ray Sources"","block_context":{"text":"X-ray Sources","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/x-ray-sources\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":130,"url":"https:\/\/www.rbdinstruments.com\/blog\/phi-x-ray-source-filament-replacement\/","url_meta":{"origin":2472,"position":2},"title":"Removing the filaments in a PHI 04-548 X-ray Source","author":"Randy","date":"September 25, 2012","format":false,"excerpt":"This is part 1 of 2 - how to completely disassemble the PHI 04-548 X-ray source that has the new style filaments. Part 2 will be how to put it back together with new parts. Here is a link to a video that shows the procedure step by step. New\u2026","rel":"","context":"In "X-ray Sources"","block_context":{"text":"X-ray Sources","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/x-ray-sources\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1911,"url":"https:\/\/www.rbdinstruments.com\/blog\/32-095-x-ray-source-control\/","url_meta":{"origin":2472,"position":3},"title":"32-095 X-ray source control","author":"Randy","date":"February 28, 2017","format":false,"excerpt":"When the 32-095 X-ray source control is not working properly there are some easy\u00a0 possible solutions that you can check before sending the unit to RBD Instruments Inc. for repair. If the problem is that one filament works but the other one does not, then you should check the fuses\u2026","rel":"","context":"In "General Optics and Vacuum"","block_context":{"text":"General Optics and Vacuum","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/general-optics-and-vacuum\/"},"img":{"alt_text":"32-095 local power supply board +5V","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2017\/02\/32-095-local-power-supply-board-+5V.jpg?fit=972%2C648&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2017\/02\/32-095-local-power-supply-board-+5V.jpg?fit=972%2C648&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2017\/02\/32-095-local-power-supply-board-+5V.jpg?fit=972%2C648&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1971,"url":"https:\/\/www.rbdinstruments.com\/blog\/x-ray-source-arcing\/","url_meta":{"origin":2472,"position":4},"title":"X-ray source arcing","author":"Randy","date":"May 8, 2017","format":false,"excerpt":"X-ray source arcing results in unstable XPS data and can also damage the x-ray source power supply or high voltage control. Typically X-ray source arcing is caused by contamination on the anode, a coated anode support ceramic (the football ceramic) or a loose filament. However one unseen cause of x-ray\u2026","rel":"","context":"In "General Optics and Vacuum"","block_context":{"text":"General Optics and Vacuum","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/general-optics-and-vacuum\/"},"img":{"alt_text":"burnt x-ray source connector","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2017\/05\/burnt-x-ray-source-connetor.jpg?fit=972%2C648&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2017\/05\/burnt-x-ray-source-connetor.jpg?fit=972%2C648&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2017\/05\/burnt-x-ray-source-connetor.jpg?fit=972%2C648&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":1202,"url":"https:\/\/www.rbdinstruments.com\/blog\/phi-15kv-dual-anode-x-ray-source-outgas-procedure\/","url_meta":{"origin":2472,"position":5},"title":"PHI 15kV Dual Anode X-ray Source Outgas Procedure","author":"Randy","date":"August 6, 2014","format":false,"excerpt":"This is the procedure that I use to ensure proper outgassing and conditioning of the PHI 04-500 and 04-548 15kV Dual Anode X-ray source after installation or bake-out. It is a slight variation from the procedure in the 32-095 out-gas activate procedure. - Initial Installation After installing the source, the\u2026","rel":"","context":"In "General Optics and Vacuum"","block_context":{"text":"General Optics and Vacuum","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/general-optics-and-vacuum\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/posts\/2472"}],"collection":[{"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/comments?post=2472"}],"version-history":[{"count":2,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/posts\/2472\/revisions"}],"predecessor-version":[{"id":2476,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/posts\/2472\/revisions\/2476"}],"wp:attachment":[{"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/media?parent=2472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/categories?post=2472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/tags?post=2472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}