{"id":3186,"date":"2021-03-14T13:07:14","date_gmt":"2021-03-14T20:07:14","guid":{"rendered":"https:\/\/www.rbdinstruments.com\/blog\/?p=3186"},"modified":"2021-03-14T13:07:19","modified_gmt":"2021-03-14T20:07:19","slug":"cylindrical-mirror-analyzer-fringe-field-termination-ceramics","status":"publish","type":"post","link":"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/","title":{"rendered":"Cylindrical mirror analyzer fringe field termination ceramics"},"content":{"rendered":"\n<p>Physical electronics (PHI) cylindrical mirror analyzers ( CMA)  use fringe field termination ceramics to reduce the fringe fields from the end of the cylinders.<\/p>\n\n\n\n<p> Abstract an early patent:<\/p>\n\n\n\n<p>Field termination plates for cylindrical electron analyzers are provided  wherein the plates are constructed of an insulative material coated on  the interior surface with a high resistance, electrically conducting  coating. Spaced concentric rings of relatively high conductivity  material in electrical contact with said coating are provided; the rings  providing equi-potential regions on the plates, thereby minimizing  field fringing near the ends of the cylindrical tube electron analyzer. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-attachment-id=\"3187\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/original-patent-palmberg\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?fit=511%2C353&amp;ssl=1\" data-orig-size=\"511,353\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Original-patent-Palmberg\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?fit=300%2C207&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?fit=511%2C353&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"511\" height=\"353\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/plugins\/jquery-image-lazy-loading\/images\/grey.gif?resize=511%2C353&#038;ssl=1\" data-original=\"https:\/\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg\" alt=\"\" class=\"lazy wp-image-3187\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?w=511&amp;ssl=1 511w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?resize=300%2C207&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?resize=434%2C300&amp;ssl=1 434w\" sizes=\"(max-width: 511px) 100vw, 511px\" data-recalc-dims=\"1\" \/><noscript><img data-attachment-id=\"3187\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/original-patent-palmberg\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?fit=511%2C353&amp;ssl=1\" data-orig-size=\"511,353\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Original-patent-Palmberg\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?fit=300%2C207&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?fit=511%2C353&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"511\" height=\"353\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?resize=511%2C353&#038;ssl=1\" alt=\"\" class=\"wp-image-3187\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?w=511&amp;ssl=1 511w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?resize=300%2C207&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Original-patent-Palmberg.jpg?resize=434%2C300&amp;ssl=1 434w\" sizes=\"(max-width: 511px) 100vw, 511px\" data-recalc-dims=\"1\" \/><\/noscript><\/figure>\n\n\n\n<p>The PHI CMA (cylindrical mirror analyzer) utilizes conical and flat termination ceramics to eliminate electrostatic edge effects between the inner and outer cylinders. These ceramics are essentially gold rings with resistors in between that divide the outer cylinder sweep voltage down in even steps. The result is a very high throughput and even energy distribution of the Auger electrons. If a CMA has a poor contact on a termination ceramic, the results are noisy data and poor energy linearity.<\/p>\n\n\n\n<p>Single pass AES CMAs have just 2 terminating ceramics, a conical at the front of the CMA and a flat at the base.  Double Pass AES\/XPS CMAs have 3 terminating ceramics, a conical at the front, a center and a base.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-attachment-id=\"3188\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/cma-conical-and-flats\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?fit=480%2C192&amp;ssl=1\" data-orig-size=\"480,192\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"CMA-conical-and-flats\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?fit=300%2C120&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?fit=480%2C192&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"480\" height=\"192\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/plugins\/jquery-image-lazy-loading\/images\/grey.gif?resize=480%2C192&#038;ssl=1\" data-original=\"https:\/\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg\" alt=\"\" class=\"lazy wp-image-3188\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?w=480&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?resize=300%2C120&amp;ssl=1 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" data-recalc-dims=\"1\" \/><noscript><img data-attachment-id=\"3188\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/cma-conical-and-flats\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?fit=480%2C192&amp;ssl=1\" data-orig-size=\"480,192\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"CMA-conical-and-flats\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?fit=300%2C120&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?fit=480%2C192&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"480\" height=\"192\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?resize=480%2C192&#038;ssl=1\" alt=\"\" class=\"wp-image-3188\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?w=480&amp;ssl=1 480w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/CMA-conical-and-flats.jpg?resize=300%2C120&amp;ssl=1 300w\" sizes=\"(max-width: 480px) 100vw, 480px\" data-recalc-dims=\"1\" \/><\/noscript><\/figure>\n\n\n\n<p>  The conical and flat ceramics are essentially resistors and so the total resistance between the inner and outer cylinders add up like this:<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-attachment-id=\"3189\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/resistors-in-parallel\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?fit=791%2C489&amp;ssl=1\" data-orig-size=\"791,489\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"resistors-in-parallel\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?fit=300%2C185&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?fit=584%2C361&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"584\" height=\"361\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/plugins\/jquery-image-lazy-loading\/images\/grey.gif?resize=584%2C361&#038;ssl=1\" data-original=\"https:\/\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg\" alt=\"\" class=\"lazy wp-image-3189\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?w=791&amp;ssl=1 791w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?resize=300%2C185&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?resize=768%2C475&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?resize=485%2C300&amp;ssl=1 485w\" sizes=\"(max-width: 584px) 100vw, 584px\" data-recalc-dims=\"1\" \/><noscript><img data-attachment-id=\"3189\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/resistors-in-parallel\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?fit=791%2C489&amp;ssl=1\" data-orig-size=\"791,489\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"resistors-in-parallel\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?fit=300%2C185&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?fit=584%2C361&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"584\" height=\"361\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?resize=584%2C361&#038;ssl=1\" alt=\"\" class=\"wp-image-3189\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?w=791&amp;ssl=1 791w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?resize=300%2C185&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?resize=768%2C475&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/resistors-in-parallel.jpg?resize=485%2C300&amp;ssl=1 485w\" sizes=\"(max-width: 584px) 100vw, 584px\" data-recalc-dims=\"1\" \/><\/noscript><\/figure>\n\n\n\n<p>The table below lists the values on the combined resistances of the older PHI CMAs.\n\n<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-attachment-id=\"3190\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/conical-and-flat-values\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?fit=819%2C411&amp;ssl=1\" data-orig-size=\"819,411\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"conical-and-flat-values\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?fit=300%2C151&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?fit=584%2C293&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"584\" height=\"293\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/plugins\/jquery-image-lazy-loading\/images\/grey.gif?resize=584%2C293&#038;ssl=1\" data-original=\"https:\/\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg\" alt=\"\" class=\"lazy wp-image-3190\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?w=819&amp;ssl=1 819w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?resize=300%2C151&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?resize=768%2C385&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?resize=500%2C251&amp;ssl=1 500w\" sizes=\"(max-width: 584px) 100vw, 584px\" data-recalc-dims=\"1\" \/><noscript><img data-attachment-id=\"3190\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/conical-and-flat-values\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?fit=819%2C411&amp;ssl=1\" data-orig-size=\"819,411\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"conical-and-flat-values\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?fit=300%2C151&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?fit=584%2C293&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"584\" height=\"293\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?resize=584%2C293&#038;ssl=1\" alt=\"\" class=\"wp-image-3190\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?w=819&amp;ssl=1 819w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?resize=300%2C151&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?resize=768%2C385&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/conical-and-flat-values.jpg?resize=500%2C251&amp;ssl=1 500w\" sizes=\"(max-width: 584px) 100vw, 584px\" data-recalc-dims=\"1\" \/><\/noscript><figcaption>Values are in Meg ohms<\/figcaption><\/figure>\n\n\n\n<p>If the VM or IC to OC (inner to outer cylinder) resistances are off significantly in your CMA then you probably have a contact issue between a conical or flat (base) ceramic between the outer cylinder or the inner cylinder.    Sometimes the resistances of the conical ceramic can be off due coating caused by years of sputter depth profiling. <\/p>\n\n\n\n<p>A poor electrical contact can result in high background counts or extremely high noise levels in the data due to arcing.   If you suspect that your CMA has a contact issue with a terminating ceramic then you will need to tear down your CMA to where you can add improve the electrical contact by adding some thin  copper or gold  shim foil between the suspect ceramic and cylinder.  If you need some guidance on how to do that, please contact <a href=\"http:\/\/www.rbdinstruments.com\">RBD Instruments<\/a>.<\/p>\n\n\n\n<p>The pictures below show the conical and flat ceramics from a 25-120A CMA.   You can see the gold rings and also the thin film resistors.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img data-attachment-id=\"3191\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/conical\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=1512%2C1512&amp;ssl=1\" data-orig-size=\"1512,1512\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"termination ceramic\" data-image-description=\"&lt;p&gt;termination ceramic&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Conical fringe field termination ceramic&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=584%2C584&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"584\" height=\"584\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/plugins\/jquery-image-lazy-loading\/images\/grey.gif?resize=584%2C584&#038;ssl=1\" data-original=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=584%2C584&amp;ssl=1\" alt=\"\" class=\"lazy wp-image-3191\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?w=1512&amp;ssl=1 1512w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?w=1168&amp;ssl=1 1168w\" sizes=\"(max-width: 584px) 100vw, 584px\" data-recalc-dims=\"1\" \/><noscript><img data-attachment-id=\"3191\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/conical\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=1512%2C1512&amp;ssl=1\" data-orig-size=\"1512,1512\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"termination ceramic\" data-image-description=\"&lt;p&gt;termination ceramic&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Conical fringe field termination ceramic&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=584%2C584&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"1512\" height=\"1512\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=584%2C584&amp;ssl=1\" alt=\"\" class=\"wp-image-3191\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?w=1512&amp;ssl=1 1512w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?w=1168&amp;ssl=1 1168w\" sizes=\"(max-width: 584px) 100vw, 584px\" \/><\/noscript><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img data-attachment-id=\"3192\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/flat\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?fit=1512%2C1512&amp;ssl=1\" data-orig-size=\"1512,1512\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Flat\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?fit=584%2C584&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"584\" height=\"584\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/plugins\/jquery-image-lazy-loading\/images\/grey.gif?resize=584%2C584&#038;ssl=1\" data-original=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?fit=584%2C584&amp;ssl=1\" alt=\"\" class=\"lazy wp-image-3192\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?w=1512&amp;ssl=1 1512w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?w=1168&amp;ssl=1 1168w\" sizes=\"(max-width: 584px) 100vw, 584px\" data-recalc-dims=\"1\" \/><noscript><img data-attachment-id=\"3192\" data-permalink=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/flat\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?fit=1512%2C1512&amp;ssl=1\" data-orig-size=\"1512,1512\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Flat\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?fit=300%2C300&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?fit=584%2C584&amp;ssl=1\" decoding=\"async\" loading=\"lazy\" width=\"1512\" height=\"1512\" src=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?fit=584%2C584&amp;ssl=1\" alt=\"\" class=\"wp-image-3192\" srcset=\"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?w=1512&amp;ssl=1 1512w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?resize=150%2C150&amp;ssl=1 150w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?resize=300%2C300&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?resize=768%2C768&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?resize=1024%2C1024&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Flat.jpg?w=1168&amp;ssl=1 1168w\" sizes=\"(max-width: 584px) 100vw, 584px\" \/><\/noscript><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Explanation of how a contact issue with a fringe field termination ceramic can affect AES and XPS data. <a href=\"https:\/\/www.rbdinstruments.com\/blog\/cylindrical-mirror-analyzer-fringe-field-termination-ceramics\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":3191,"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],"tags":[353,43,355,354],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2021\/03\/Conical.jpg?fit=1512%2C1512&ssl=1","jetpack_shortlink":"https:\/\/wp.me\/p2DEXo-Po","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":568,"url":"https:\/\/www.rbdinstruments.com\/blog\/electron-multipliers-used-in-phi-aes-and-xps-analyzers\/","url_meta":{"origin":3186,"position":0},"title":"Electron multipliers used in PHI AES and XPS analyzers","author":"Randy","date":"May 17, 2013","format":false,"excerpt":"The Physical Electronics AES cylindrical mirror (CMA), double-pass ESCA (XPS) and single channel SCA hemisphere analyzers use variations of the Channeltron\u00ae (registered trade mark of Photonis \u2013 Burle \u2013 Galileo) type of electron multiplier. The function of the electron multiplier is to increase the number of electrons that the analyzer\u2026","rel":"","context":"In &quot;General Optics and Vacuum&quot;","block_context":{"text":"General Optics and Vacuum","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/general-optics-and-vacuum\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2013\/05\/channeltron-electron-multiplier.jpg?fit=203%2C267&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":300,"url":"https:\/\/www.rbdinstruments.com\/blog\/phi-optics-repair-guidelines-2\/","url_meta":{"origin":3186,"position":1},"title":"PHI Optics Repair Guidelines","author":"Randy","date":"January 17, 2013","format":false,"excerpt":"This document contains information about optics repair methods, procedures and tricks that are useful when working on older PHI optics units such as cylindrical mirror analyzers, x-ray photoelectron spectrometers and sputter ion sources. General Optics Guidelines. Clean all tools with isopropanol or methanol and also degauss them if possible. Most\u2026","rel":"","context":"In &quot;General Optics and Vacuum&quot;","block_context":{"text":"General Optics and Vacuum","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/general-optics-and-vacuum\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2013\/01\/10-155-electron-gun-detail.png?fit=619%2C568&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3760,"url":"https:\/\/www.rbdinstruments.com\/blog\/electron-multipliers-for-older-phi-aes-and-xps-systems\/","url_meta":{"origin":3186,"position":2},"title":"Electron multipliers for older PHI AES and XPS systems","author":"Randy","date":"June 15, 2023","format":false,"excerpt":"Part numbers for electron multipliers for older Physical Electronics Auger and X-ray photoelectron analyzers.","rel":"","context":"In &quot;General Optics and Vacuum&quot;","block_context":{"text":"General Optics and Vacuum","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/general-optics-and-vacuum\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2023\/06\/image.png?fit=775%2C507&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2023\/06\/image.png?fit=775%2C507&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2023\/06\/image.png?fit=775%2C507&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":4040,"url":"https:\/\/www.rbdinstruments.com\/blog\/20-805-or-11-500a-analyzer-control-sweep-voltage-test\/","url_meta":{"origin":3186,"position":3},"title":"20-805 or 11-500A analyzer control sweep voltage test","author":"Randy","date":"June 26, 2024","format":false,"excerpt":"Older PHI cylindrical mirror analyzers (CMA) uses two cylinders to focus electrons of a particular energy into an aperture for amplification via an electron multiplier. For AES, the inner cylinder is at ground potential and the outer cylinder has a voltage applied to it (sweep voltage) that deflects the electrons\u2026","rel":"","context":"In &quot;General Optics and Vacuum&quot;","block_context":{"text":"General Optics and Vacuum","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/general-optics-and-vacuum\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2024\/06\/Analyzer-pins.png?fit=422%2C279&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":345,"url":"https:\/\/www.rbdinstruments.com\/blog\/ion-beam-induced-low-energy-electrons\/","url_meta":{"origin":3186,"position":4},"title":"Ion Beam Induced Low Energy Electrons","author":"Randy","date":"February 6, 2013","format":false,"excerpt":"For the purpose of checking the performance of a surface analysis spectrometer such as a cylindrical mirror analyzer (CMA) or spherical capacitive analyzer (SCA), looking at an ion induced low energy electron peak can be extremely helpful. The peak typically occurs at about 20 to 50 eV and the size\u2026","rel":"","context":"In &quot;Operation and Calibration Procedures&quot;","block_context":{"text":"Operation and Calibration Procedures","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/operation-and-calibration-procedures\/"},"img":{"alt_text":"ion gun noise","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2013\/02\/Ion-gun-noise.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":707,"url":"https:\/\/www.rbdinstruments.com\/blog\/10-155-filament-replacement-procedure\/","url_meta":{"origin":3186,"position":5},"title":"10-155 Filament replacement procedure","author":"Randy","date":"July 22, 2013","format":false,"excerpt":"This blog post is an updated version of the 10-155 filament replacement procedure first published on the RBD Instruments website as a Technical Tip a number of years ago. This version has been updated with some close up pictures of the electron gun assembly shown at the bottom of this\u2026","rel":"","context":"In &quot;General Optics and Vacuum&quot;","block_context":{"text":"General Optics and Vacuum","link":"https:\/\/www.rbdinstruments.com\/blog\/category\/general-optics-and-vacuum\/"},"img":{"alt_text":"filament-coupler-space-between","src":"https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2013\/07\/filament-coupler-space.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\/2013\/07\/filament-coupler-space.jpg?fit=972%2C648&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.rbdinstruments.com\/blog\/wp-content\/uploads\/2013\/07\/filament-coupler-space.jpg?fit=972%2C648&ssl=1&resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/posts\/3186"}],"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=3186"}],"version-history":[{"count":2,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/posts\/3186\/revisions"}],"predecessor-version":[{"id":3195,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/posts\/3186\/revisions\/3195"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/media\/3191"}],"wp:attachment":[{"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/media?parent=3186"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/categories?post=3186"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rbdinstruments.com\/blog\/wp-json\/wp\/v2\/tags?post=3186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}