{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T11:26:13Z","timestamp":1753874773894,"version":"3.41.2"},"reference-count":23,"publisher":"AIP Publishing","issue":"12","funder":[{"DOI":"10.13039\/100006227","name":"Lawrence Livermore National Laboratory","doi-asserted-by":"publisher","award":["DE-AC52-07NA27344"],"award-info":[{"award-number":["DE-AC52-07NA27344"]}],"id":[{"id":"10.13039\/100006227","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,12,1]]},"abstract":"<jats:p>As neutron yields increase at fusion facilities, a universal symptom the community must deal with is MeV neutron-induced backgrounds in cables running to diagnostics. On the first Gain &amp;gt;1 plasmas in the world, the National Ignition Facility (NIF) neutron time-of-flight (nToF) diagnostic registered significant cable backgrounds that compromised key performance measurements. The South Pole nToF is uniquely located inside the NIF Target Bay shield walls, \u223c18\u00a0m from the fusion source, and consequently has long coaxial cable runs (&amp;gt;20\u00a0m) that see significant neutron fluence. The resulting neutron-driven current in the cable is comparable to the downscattered neutron signal, compromising the downscattered ratio (DSR) measurement. We have characterized this background with a series of on-shot tests and developed a background subtraction technique to mitigate these effects. The background subtracted DSR results are validated against zirconium activation measurements, indicating that we have successfully reclaimed high-quality data output. The ion temperature measurement is found to not be affected by this background. Alternative approaches to addressing neutron-induced cable backgrounds are presented for potential future hardware upgrades.<\/jats:p>","DOI":"10.1063\/5.0219568","type":"journal-article","created":{"date-parts":[[2024,12,3]],"date-time":"2024-12-03T13:29:19Z","timestamp":1733232559000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":0,"title":["Neutron-induced backgrounds in coaxial cables on the South Pole neutron time-of-flight detector at the National Ignition Facility"],"prefix":"10.1063","volume":"95","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4822-564X","authenticated-orcid":false,"given":"S.","family":"Kerr","sequence":"first","affiliation":[{"name":"Lawrence Livermore National Laboratory , Livermore, California 94550,","place":["USA"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9109-1563","authenticated-orcid":false,"given":"J.","family":"Jeet","sequence":"additional","affiliation":[{"name":"Lawrence Livermore National Laboratory , Livermore, California 94550,","place":["USA"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5874-9984","authenticated-orcid":false,"given":"E.","family":"Mariscal","sequence":"additional","affiliation":[{"name":"Lawrence Livermore National Laboratory , Livermore, California 94550,","place":["USA"]}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8806-7426","authenticated-orcid":false,"given":"K. 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