Performance of a Compact Gamma Tube Interrogation Source
Active interrogation with high-energy monoenergetic gammas can induce photofission signals in fissile materials while minimizing absorbed radiation dose and background from surrounding materials. A first-generation axial-type gamma generator has been developed that utilizes the 11B(p,g)12C nuclear r...
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| creator | King, Michael J Antolak, Arlyn J Leung, Ka-Ngo Morse, Dan H Raber, Thomas N Doyle, Barney L |
| description | Active interrogation with high-energy monoenergetic gammas can induce photofission signals in fissile materials while minimizing absorbed radiation dose and background from surrounding materials. A first-generation axial-type gamma generator has been developed that utilizes the 11B(p,g)12C nuclear reaction at a 163 keV resonance to produce monoenergetic 12-MeV gamma-rays. The gamma tube employs a water-cooled cylindrical radio frequency (if) induction ion source capable of producing a proton current density of up to 100 mA/cm2. The extracted proton beam bombards a lanthanum hexaboride (LaB6) target at energies up to 200 keV. The 12-MeV gamma intensity was measured as a function of proton energy, beam current, and angle. Photofission-induced neutrons from depleted uranium (DU) were measured and compared to MCNPX calculations. After extended operation, the high power density of the proton beam was observed to cause damage to the LaB6 target and the gamma tube improvements currently being made to mitigate this damage are discussed. |
| doi_str_mv | 10.1063/1.3120113 |
| format | Conference Proceeding |
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A first-generation axial-type gamma generator has been developed that utilizes the 11B(p,g)12C nuclear reaction at a 163 keV resonance to produce monoenergetic 12-MeV gamma-rays. The gamma tube employs a water-cooled cylindrical radio frequency (if) induction ion source capable of producing a proton current density of up to 100 mA/cm2. The extracted proton beam bombards a lanthanum hexaboride (LaB6) target at energies up to 200 keV. The 12-MeV gamma intensity was measured as a function of proton energy, beam current, and angle. Photofission-induced neutrons from depleted uranium (DU) were measured and compared to MCNPX calculations. After extended operation, the high power density of the proton beam was observed to cause damage to the LaB6 target and the gamma tube improvements currently being made to mitigate this damage are discussed.</description><identifier>ISSN: 0094-243X</identifier><identifier>ISBN: 9780735406339</identifier><identifier>ISBN: 0735406332</identifier><identifier>EISSN: 1551-7616</identifier><identifier>DOI: 10.1063/1.3120113</identifier><language>eng</language><publisher>United States</publisher><subject>07 ISOTOPES AND RADIATION SOURCES ; BEAM CURRENTS ; BORON 11 TARGET ; CARBON 12 ; COMPARATIVE EVALUATIONS ; CURRENT DENSITY ; DEPLETED URANIUM ; FISSILE MATERIALS ; ION SOURCES ; KEV RANGE ; LANTHANUM BORIDES ; MEV RANGE ; NEUTRON DETECTION ; NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION ; PHOTOFISSION ; PHOTON BEAMS ; PHOTONEUTRONS ; PHYSICAL RADIATION EFFECTS ; PROTON BEAMS ; PROTON REACTIONS</subject><ispartof>AIP conference proceedings, 2009, Vol.1099 (1), p.619-623</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/21289608$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>King, Michael J</creatorcontrib><creatorcontrib>Antolak, Arlyn J</creatorcontrib><creatorcontrib>Leung, Ka-Ngo</creatorcontrib><creatorcontrib>Morse, Dan H</creatorcontrib><creatorcontrib>Raber, Thomas N</creatorcontrib><creatorcontrib>Doyle, Barney L</creatorcontrib><title>Performance of a Compact Gamma Tube Interrogation Source</title><title>AIP conference proceedings</title><description>Active interrogation with high-energy monoenergetic gammas can induce photofission signals in fissile materials while minimizing absorbed radiation dose and background from surrounding materials. A first-generation axial-type gamma generator has been developed that utilizes the 11B(p,g)12C nuclear reaction at a 163 keV resonance to produce monoenergetic 12-MeV gamma-rays. The gamma tube employs a water-cooled cylindrical radio frequency (if) induction ion source capable of producing a proton current density of up to 100 mA/cm2. The extracted proton beam bombards a lanthanum hexaboride (LaB6) target at energies up to 200 keV. The 12-MeV gamma intensity was measured as a function of proton energy, beam current, and angle. Photofission-induced neutrons from depleted uranium (DU) were measured and compared to MCNPX calculations. After extended operation, the high power density of the proton beam was observed to cause damage to the LaB6 target and the gamma tube improvements currently being made to mitigate this damage are discussed.</description><subject>07 ISOTOPES AND RADIATION SOURCES</subject><subject>BEAM CURRENTS</subject><subject>BORON 11 TARGET</subject><subject>CARBON 12</subject><subject>COMPARATIVE EVALUATIONS</subject><subject>CURRENT DENSITY</subject><subject>DEPLETED URANIUM</subject><subject>FISSILE MATERIALS</subject><subject>ION SOURCES</subject><subject>KEV RANGE</subject><subject>LANTHANUM BORIDES</subject><subject>MEV RANGE</subject><subject>NEUTRON DETECTION</subject><subject>NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION</subject><subject>PHOTOFISSION</subject><subject>PHOTON BEAMS</subject><subject>PHOTONEUTRONS</subject><subject>PHYSICAL RADIATION EFFECTS</subject><subject>PROTON BEAMS</subject><subject>PROTON REACTIONS</subject><issn>0094-243X</issn><issn>1551-7616</issn><isbn>9780735406339</isbn><isbn>0735406332</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2009</creationdate><recordtype>conference_proceeding</recordtype><recordid>eNotzF1LwzAUxvHgCzjnLvwGAcG7zpy8NMmlDJ2DgYITvCvp6alW1mY26fd3MK-e_8WPh7FbEEsQpXqApQIpANQZm4ExUNgSynO28NYJq4w-GuUv2EwIrwup1ecVu07pRwjprXUz5t5obOPYhwGJx5YHvor9IWDm69D3ge-mmvhmyDSO8SvkLg78PU4j0g27bMM-0eJ_5-zj-Wm3eim2r-vN6nFbRAk6F0iIwnlVWoMasDmGkLXVGltvfFO7hsDVRI2z3iLUQoNxGBSiFkELrebs7vQbU-6qhF0m_MY4DIS5kiCdL4U7qvuTOozxd6KUq75LSPt9GChOqVLKGTClUX8UJFaz</recordid><startdate>20090101</startdate><enddate>20090101</enddate><creator>King, Michael J</creator><creator>Antolak, Arlyn J</creator><creator>Leung, Ka-Ngo</creator><creator>Morse, Dan H</creator><creator>Raber, Thomas N</creator><creator>Doyle, Barney L</creator><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20090101</creationdate><title>Performance of a Compact Gamma Tube Interrogation Source</title><author>King, Michael J ; Antolak, Arlyn J ; Leung, Ka-Ngo ; Morse, Dan H ; Raber, Thomas N ; Doyle, Barney L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-o214t-cecc0893675c41cd36702b744cf959db8de18beed8797c1b04158ca3cc40a4043</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2009</creationdate><topic>07 ISOTOPES AND RADIATION SOURCES</topic><topic>BEAM CURRENTS</topic><topic>BORON 11 TARGET</topic><topic>CARBON 12</topic><topic>COMPARATIVE EVALUATIONS</topic><topic>CURRENT DENSITY</topic><topic>DEPLETED URANIUM</topic><topic>FISSILE MATERIALS</topic><topic>ION SOURCES</topic><topic>KEV RANGE</topic><topic>LANTHANUM BORIDES</topic><topic>MEV RANGE</topic><topic>NEUTRON DETECTION</topic><topic>NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION</topic><topic>PHOTOFISSION</topic><topic>PHOTON BEAMS</topic><topic>PHOTONEUTRONS</topic><topic>PHYSICAL RADIATION EFFECTS</topic><topic>PROTON BEAMS</topic><topic>PROTON REACTIONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>King, Michael J</creatorcontrib><creatorcontrib>Antolak, Arlyn J</creatorcontrib><creatorcontrib>Leung, Ka-Ngo</creatorcontrib><creatorcontrib>Morse, Dan H</creatorcontrib><creatorcontrib>Raber, Thomas N</creatorcontrib><creatorcontrib>Doyle, Barney L</creatorcontrib><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>King, Michael J</au><au>Antolak, Arlyn J</au><au>Leung, Ka-Ngo</au><au>Morse, Dan H</au><au>Raber, Thomas N</au><au>Doyle, Barney L</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Performance of a Compact Gamma Tube Interrogation Source</atitle><btitle>AIP conference proceedings</btitle><date>2009-01-01</date><risdate>2009</risdate><volume>1099</volume><issue>1</issue><spage>619</spage><epage>623</epage><pages>619-623</pages><issn>0094-243X</issn><eissn>1551-7616</eissn><isbn>9780735406339</isbn><isbn>0735406332</isbn><abstract>Active interrogation with high-energy monoenergetic gammas can induce photofission signals in fissile materials while minimizing absorbed radiation dose and background from surrounding materials. A first-generation axial-type gamma generator has been developed that utilizes the 11B(p,g)12C nuclear reaction at a 163 keV resonance to produce monoenergetic 12-MeV gamma-rays. The gamma tube employs a water-cooled cylindrical radio frequency (if) induction ion source capable of producing a proton current density of up to 100 mA/cm2. The extracted proton beam bombards a lanthanum hexaboride (LaB6) target at energies up to 200 keV. The 12-MeV gamma intensity was measured as a function of proton energy, beam current, and angle. Photofission-induced neutrons from depleted uranium (DU) were measured and compared to MCNPX calculations. After extended operation, the high power density of the proton beam was observed to cause damage to the LaB6 target and the gamma tube improvements currently being made to mitigate this damage are discussed.</abstract><cop>United States</cop><doi>10.1063/1.3120113</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 2009, Vol.1099 (1), p.619-623 |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_osti_scitechconnect_21289608 |
| source | AIP Journals Complete |
| subjects | 07 ISOTOPES AND RADIATION SOURCES BEAM CURRENTS BORON 11 TARGET CARBON 12 COMPARATIVE EVALUATIONS CURRENT DENSITY DEPLETED URANIUM FISSILE MATERIALS ION SOURCES KEV RANGE LANTHANUM BORIDES MEV RANGE NEUTRON DETECTION NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION PHOTOFISSION PHOTON BEAMS PHOTONEUTRONS PHYSICAL RADIATION EFFECTS PROTON BEAMS PROTON REACTIONS |
| title | Performance of a Compact Gamma Tube Interrogation Source |
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