{"id":333,"date":"2016-06-08T06:19:18","date_gmt":"2016-06-08T10:19:18","guid":{"rendered":"http:\/\/www.gemsys.ca\/?page_id=333"},"modified":"2016-06-17T16:00:19","modified_gmt":"2016-06-17T20:00:19","slug":"tech-notes-papers","status":"publish","type":"page","link":"https:\/\/www.gemsys.ca\/tech-notes-papers\/","title":{"rendered":"GEM Technical Papers"},"content":{"rendered":"<h3><span style=\"color: #0000ff;\">Proton Precession and Overhauser Magnetometers<\/span><\/h3>\n<p>Overhauser effect magnetometers were initially commercialized by GEM in the mid-1980s and have advanced since then through various R&amp;D initiatives. The following papers summarize some of the theory and developments in this area.<\/p>\n<ul>\n<li><a title=\"Site Characterization Using GSM-19GW\" href=\"https:\/\/www.gemsys.ca\/site-characterization-for-using-overhauser-magnetometer\/\">Site Characterization Using GSM-19GW<\/a><\/li>\n<li><a title=\"Selecting an Overhauser Magnetometer - Points to Remember \" href=\"https:\/\/www.gemsys.ca\/selecting-an-overhauser-magnetometer\/\">Selecting an Overhauser Magnetometer &#8211; Points to Remember<\/a><\/li>\n<li><a title=\"Nuclear Precession Scalar Magnetometers\" href=\"https:\/\/www.gemsys.ca\/pdf\/GEM_Scalar_Magnetometers_Nuclear_Precession.pdf\">Nuclear Precession Scalar Magnetometers<\/a><\/li>\n<li><a title=\"Overhauser Magnetometers for Measurement of the Earth's Field\" href=\"https:\/\/www.gemsys.ca\/pdf\/Overhauser-Magnetometers-for-Measurement-of-the-Earth%27s-Magnetic-Field.pdf\">Overhauser Magnetometers for Measurement of the Earth&#8217;s Field<\/a><\/li>\n<li><a title=\"Requirements for Obtaining High Accuracy with Proton Magnetometers\" href=\"https:\/\/www.gemsys.ca\/pdf\/Requirements_for_Obtaining_High_Accuracy_with_Proton_Magnetometers.pdf\">Requirements for Obtaining High Accuracy with Proton Magnetometers<\/a><\/li>\n<li><a title=\"Requirements for a Low-Power Overhauser Magnetometer (GSM-19L)\" href=\"https:\/\/www.gemsys.ca\/pdf\/GEM_Overhauser_Low_Power_Magnetometer.pdf\">Requirements for a Low-Power Overhauser Magnetometer (GSM-19L)<\/a><\/li>\n<\/ul>\n<h3><span style=\"color: #0000ff;\">Potassium Magnetometers<\/span><\/h3>\n<p>Another class of magnetometer (in addition to conventional and Overhauser effect proton precession magnetometers) are those that utilize electron resonance principles.<\/p>\n<p>Commonly called optically pumped magnetometers, these systems utilize alkali metal vapour to generate precessions based on the Zeeman effect.<\/p>\n<p><strong>Potassium alkali methods offer a number of advantages over other alkali methods, including:<\/strong><\/p>\n<ul>\n<li>Order-of-Magnitude Higher Resolution<\/li>\n<li>Lower Maintenance costs (i.e. no Alignment Required)<\/li>\n<li>Lower Heading Errors<\/li>\n<\/ul>\n<p><strong>The following papers look at some of the specific applications of potassium instruments.<\/strong><\/p>\n<ul>\n<li><\/li>\n<li><a title=\"Potassium Magnetometers-A Short Summary\" href=\"https:\/\/www.gemsys.ca\/pdf\/GEM_Potassium_Magnetometers_Overview.pdf\">Potassium Magnetometers &#8211; A Short Summary<\/a><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<li><\/li>\n<\/ul>\n<h3><span style=\"color: #0000ff;\">Technical Notes<\/span><\/h3>\n<ul>\n<li><a title=\"Site Characterization Using GSM-19GW\" href=\"https:\/\/www.gemsys.ca\/site-characterization-for-using-overhauser-magnetometer\/\">Site Characterization Using GSM-19GW<\/a><\/li>\n<li><\/li>\n<\/ul>\n<h3><span style=\"color: #0000ff;\">The Magnetic Method \u00a0.. some references<\/span><\/h3>\n<ul>\n<li><a href=\"https:\/\/www.gemsys.ca\/wp-content\/uploads\/2012\/03\/GEM_A_brief_review_of_Quantum_Magnetometers.pdf\">GEM_A_brief_review_of_Quantum_Magnetometers<\/a><\/li>\n<li><a title=\"Magnetometer Definitions (New)\" href=\"https:\/\/www.gemsys.ca\/technology\/subscribe-to-quantum-e-news\/quantum-v1-winter-2002\/tricky-definitions-gem-provides-a-quick-reference-guide-for-experts-and-beginners\/\">Magnetometer Definitions<\/a><\/li>\n<li><a title=\"Magnetometer Definitions (New)\" href=\"https:\/\/www.gemsys.ca\/technology\/subscribe-to-quantum-e-news\/quantum-v1-winter-2002\/tricky-definitions-gem-provides-a-quick-reference-guide-for-experts-and-beginners\/\">Instruments &amp; Methodologies for Measurement of the Earth&#8217;s Magnetic Field<\/a><\/li>\n<li><a title=\"Commercial Mags\" href=\"https:\/\/www.gemsys.ca\/wp-content\/uploads\/2013\/10\/Commercial-magnetometers-and-their-application.pdf\">Commercial Magnetometers and their Application<\/a><\/li>\n<li><a title=\"Geophysical Applications\" href=\"https:\/\/www.gemsys.ca\/wp-content\/uploads\/2013\/10\/Geophysical-Applications.pdf\">Geophysical Applications<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Proton Precession and Overhauser Magnetometers Overhauser effect magnetometers were initially commercialized by GEM in the mid-1980s and have advanced since &hellip; <a href=\"https:\/\/www.gemsys.ca\/tech-notes-papers\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"inner-page.php","meta":{"footnotes":""},"class_list":["post-333","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.gemsys.ca\/wp-json\/wp\/v2\/pages\/333","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gemsys.ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.gemsys.ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.gemsys.ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gemsys.ca\/wp-json\/wp\/v2\/comments?post=333"}],"version-history":[{"count":58,"href":"https:\/\/www.gemsys.ca\/wp-json\/wp\/v2\/pages\/333\/revisions"}],"predecessor-version":[{"id":5870,"href":"https:\/\/www.gemsys.ca\/wp-json\/wp\/v2\/pages\/333\/revisions\/5870"}],"wp:attachment":[{"href":"https:\/\/www.gemsys.ca\/wp-json\/wp\/v2\/media?parent=333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}