{"id":4183,"date":"2026-04-09T14:26:56","date_gmt":"2026-04-09T19:26:56","guid":{"rendered":"https:\/\/maximus.energy\/?post_type=product&#038;p=4183"},"modified":"2026-07-25T09:00:55","modified_gmt":"2026-07-25T14:00:55","slug":"neutron-x-detector","status":"publish","type":"product","link":"https:\/\/maximus.energy\/index.php\/product\/neutron-x-detector\/","title":{"rendered":"<sup>3<\/sup>He Neutron-X Detector"},"content":{"rendered":"<p>The Maximus Energy <sup>3<\/sup>He Neutron-X Detector is <strong>highly sensitive to thermal neutrons<\/strong> and an excellent choice for professional researchers and enthusiasts alike. Helium-3-filled proportional counters exhibit the highest sensitivity to thermal neutrons among all neutron detector classes, making them indispensable for surveying, reactor monitoring, and nuclear science research.<\/p>\n<p>The main advantages of a Maximus Energy Neutron-X detector over a conventional neutron detector are:<\/p>\n<ol>\n<li><strong>Greatly improved resistance to electromagnetic interference.<\/strong> Ground loops and radiofrequency emissions may introduce spurious pulses into conventional neutron detectors, thereby distorting spectra and affecting counts. Neutron-X detectors employ balanced signaling, which greatly alleviates, and in many cases completely eliminates, this problem.<\/li>\n<li><strong>High magnitude of the output signal.<\/strong> A built-in balanced preamplifier and a separate (remote) balun amplifier allow for long detector cabling without degrading the signal-to-noise ratio.<\/li>\n<li><strong>The built-in HV bias supply <\/strong>eliminates the need for expensive high-voltage power supplies, allowing the Neutron-X detector to be used with an inexpensive <a href=\"https:\/\/maximus.energy\/index.php\/product\/pico-mca\/\">Pico-MCA<\/a> digital pulse processor.<\/li>\n<\/ol>\n<p><span id=\"more-4201\"><\/span>Maximus Energy <sup>3<\/sup>He Neutron-X Detector is compatible with most MCA\/DPP systems. To build a complete <a href=\"https:\/\/maximus.energy\/index.php\/product\/neutron-x\/\">neutron spectrometer<\/a>, connect the detector to a <a href=\"https:\/\/maximus.energy\/index.php\/product\/pico-mca\/\">Pico-MCA<\/a> and use the <a href=\"https:\/\/maximus.energy\/index.php\/product\/pulsecounter-pro\/\">PulseCounter Pro<\/a> spectroscopy software to acquire a neutron spectrum and counts.<\/p>\n<p><strong>Installation<\/strong><\/p>\n<ol>\n<li>Connect the balun receiver\u2019s signal output (SMA connector) to a DPP\/MCA\u2019s input using a short patch cable or an adapter.<\/li>\n<li>Connect the detector to the balun amplifier using a USB-C cable. This cable can be of arbitrary length, as the detector can be positioned at a significant distance from the balun receiver-DPP\/MCA system.<\/li>\n<li>Connect a +5VDC power (5V USB-C connector) to the balun receiver to energize the NeutronX detector.<\/li>\n<\/ol>\n<p><strong>Specifications<\/strong><\/p>\n<ul>\n<li><strong>Enclosure length: <\/strong>248 mm<\/li>\n<li><strong>Enclosure diameter:<\/strong> 36 mm<\/li>\n<li><strong>Active volume:<\/strong> 200 x 32 mm<\/li>\n<li><strong>Fill gas:<\/strong> <sup>3<\/sup>He<\/li>\n<li><strong>Pressure:<\/strong> 2 atm<\/li>\n<li><strong>Sensitivity: <\/strong>47 CPS\/nv<\/li>\n<li><strong>Typical background counts:<\/strong> 1-5 CPM<\/li>\n<\/ul>\n<p><strong>Moderator<\/strong><\/p>\n<ul>\n<li>To maximize counts when detecting fast neutrons, use a <a href=\"https:\/\/maximus.energy\/index.php\/product\/moderator\/\">moderator<\/a>.<\/li>\n<li>Use GEANT4 or MCNP to calculate the optimal moderator thickness based on the properties of your neutron source and your environment.<\/li>\n<\/ul>\n<p><strong>Detector Connectors<\/strong><\/p>\n<ul>\n<li>USB-C: connection to balun receiver (balanced signal and +5VDC)<\/li>\n<\/ul>\n<p><strong>Balun Receiver Connectors<\/strong><\/p>\n<ul>\n<li>USB-C: connection to Gamma-X detector (balanced signal and +5VDC)<\/li>\n<li>USB-C: +5VDC<\/li>\n<li>SMA: detector signal out (0 to 5V)<\/li>\n<\/ul>\n<p><strong>Warranty<\/strong><\/p>\n<ul>\n<li>1-year parts and labor; buyer pays for shipping.<\/li>\n<\/ul>\n<p><strong>Additional Information<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/maximus.energy\/index.php\/2024\/09\/21\/introduction-to-neutron-detection\/\">Introduction to Neutron Detection<\/a><\/li>\n<li><a href=\"https:\/\/maximus.energy\/wp-content\/uploads\/2026\/03\/Reliable-Neutron-Detection-in-Noisy-Environments.pdf\" data-type=\"link\" data-id=\"https:\/\/maximus.energy\/wp-content\/uploads\/2023\/11\/Reliable-Neutron-and-Gamma-Detection.pdf\">Reliable Neutron Detection (pdf)<\/a><\/li>\n<li><a href=\"https:\/\/maximus.energy\/index.php\/2021\/06\/01\/make-your-own-neutron-source\/\">Po-Be Neutron Check Source<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>High-sensitivity,<strong>\u00a0noise-resistant<\/strong> neutron detector with built-in HV bias supply and balanced preamplifier. Separate (remote) balun receiver with analog signal output for DPP\/MCA connection, requires +5VDC power (USB-C).<\/p>\n","protected":false},"featured_media":4184,"template":"","meta":{"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"product_brand":[],"product_cat":[23],"product_tag":[],"class_list":["post-4183","product","type-product","status-publish","has-post-thumbnail","product_cat-neutron","first","instock","shipping-taxable","purchasable","product-type-simple"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"jetpack-related-posts":[],"_links":{"self":[{"href":"https:\/\/maximus.energy\/index.php\/wp-json\/wp\/v2\/product\/4183","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/maximus.energy\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/maximus.energy\/index.php\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/maximus.energy\/index.php\/wp-json\/wp\/v2\/media\/4184"}],"wp:attachment":[{"href":"https:\/\/maximus.energy\/index.php\/wp-json\/wp\/v2\/media?parent=4183"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/maximus.energy\/index.php\/wp-json\/wp\/v2\/product_brand?post=4183"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/maximus.energy\/index.php\/wp-json\/wp\/v2\/product_cat?post=4183"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/maximus.energy\/index.php\/wp-json\/wp\/v2\/product_tag?post=4183"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}