Energy Spectra and Angular Distribution of Photoneutrons from Carbon
Energy spectra and angular distribution of photoneutrons from carbon are studied by irradiation with a 30-Mev bremsstrahlung beam. The spectra exhibit a fine structure from which the following levels in C/sup 12/ may be distinguished: these coincide with levels found in the C/sup 12/( gamma ,p) and...
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| Veröffentlicht in: | Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, 1960-06, Vol.118 (5), p.1297-1301 |
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| container_title | Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D |
| container_volume | 118 |
| creator | Emma, V. Milone, C. Rubbino, A. |
| description | Energy spectra and angular distribution of photoneutrons from carbon are studied by irradiation with a 30-Mev bremsstrahlung beam. The spectra exhibit a fine structure from which the following levels in C/sup 12/ may be distinguished: these coincide with levels found in the C/sup 12/( gamma ,p) and C/sup 12/( gamma ,3 alpha ) reactions. Photoneutron emission occurs predominantly by transition to the ground state of C/sup 11/. The angular distribution is of the form 1 + 1.5 sin/sup 2/ theta for all neutrons having energy E/sub n/> 3 Mev. This distribution agrees with that expected according to Wilkinson's independent- particle model for ejection from the 1 = 1 orbit. (auth) |
| doi_str_mv | 10.1103/PhysRev.118.1297 |
| format | Article |
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The spectra exhibit a fine structure from which the following levels in C/sup 12/ may be distinguished: these coincide with levels found in the C/sup 12/( gamma ,p) and C/sup 12/( gamma ,3 alpha ) reactions. Photoneutron emission occurs predominantly by transition to the ground state of C/sup 11/. The angular distribution is of the form 1 + 1.5 sin/sup 2/ theta for all neutrons having energy E/sub n/> 3 Mev. This distribution agrees with that expected according to Wilkinson's independent- particle model for ejection from the 1 = 1 orbit. (auth)</description><identifier>ISSN: 0031-899X</identifier><identifier>DOI: 10.1103/PhysRev.118.1297</identifier><language>eng</language><subject>ALPHA PARTICLES ; ANGULAR DISTRIBUTION ; BREMSSTRAHLUNG ; CARBON 11 ; CARBON 12 ; ENERGY ; ENERGY LEVELS ; GAMMA RADIATION ; INDEPENDENT PARTICLE MODEL ; IRRADIATION ; MEASURED VALUES ; MEV RANGE ; MOMENTUM ; NEUTRONS ; NUCLEAR MODELS ; NUCLEAR THEORY ; ORBITS ; PHOTONEUTRONS ; PHOTONS ; PHOTOPRODUCTION ; PHYSICS ; PROTONS ; SPECTRA</subject><ispartof>Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. 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Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D</title><description>Energy spectra and angular distribution of photoneutrons from carbon are studied by irradiation with a 30-Mev bremsstrahlung beam. The spectra exhibit a fine structure from which the following levels in C/sup 12/ may be distinguished: these coincide with levels found in the C/sup 12/( gamma ,p) and C/sup 12/( gamma ,3 alpha ) reactions. Photoneutron emission occurs predominantly by transition to the ground state of C/sup 11/. The angular distribution is of the form 1 + 1.5 sin/sup 2/ theta for all neutrons having energy E/sub n/> 3 Mev. This distribution agrees with that expected according to Wilkinson's independent- particle model for ejection from the 1 = 1 orbit. (auth)</description><subject>ALPHA PARTICLES</subject><subject>ANGULAR DISTRIBUTION</subject><subject>BREMSSTRAHLUNG</subject><subject>CARBON 11</subject><subject>CARBON 12</subject><subject>ENERGY</subject><subject>ENERGY LEVELS</subject><subject>GAMMA RADIATION</subject><subject>INDEPENDENT PARTICLE MODEL</subject><subject>IRRADIATION</subject><subject>MEASURED VALUES</subject><subject>MEV RANGE</subject><subject>MOMENTUM</subject><subject>NEUTRONS</subject><subject>NUCLEAR MODELS</subject><subject>NUCLEAR THEORY</subject><subject>ORBITS</subject><subject>PHOTONEUTRONS</subject><subject>PHOTONS</subject><subject>PHOTOPRODUCTION</subject><subject>PHYSICS</subject><subject>PROTONS</subject><subject>SPECTRA</subject><issn>0031-899X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1960</creationdate><recordtype>article</recordtype><recordid>eNotkE1rAyEYhD200DTtvUfpfVNd3-h6DJv0AwIN_YDexHU1uyXRoG4h_74bktMwMAwzD0IPlMwoJexp0x3Th_0bTTWjpRRXaEIIo0Ul5c8Nuk3plxAKEmCClitv4_aIPw_W5Kix9i1e-O2w0xEv-5Rj3wy5Dx4HhzddyMHbIcfgE3Yx7HGtYxP8Hbp2epfs_UWn6Pt59VW_Fuv3l7d6sS4MYzwXgrQgWmN1aeYGgDreVmCcEGABtKiorriUumWmdEQ4oi0Bw1suGefQOM2m6PHcG1LuVTJ9tqYzwftxuwI6H8_DGCLnkIkhpWidOsR-r-NRUaJOeNQFz2gqdcLD_gF5hVy1</recordid><startdate>19600601</startdate><enddate>19600601</enddate><creator>Emma, V.</creator><creator>Milone, C.</creator><creator>Rubbino, A.</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>19600601</creationdate><title>Energy Spectra and Angular Distribution of Photoneutrons from Carbon</title><author>Emma, V. ; Milone, C. ; Rubbino, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c336t-70d47dcea2c5c441f6d84cf774e44a781a8699ad3c2f07f0ae04c6d693664bfa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1960</creationdate><topic>ALPHA PARTICLES</topic><topic>ANGULAR DISTRIBUTION</topic><topic>BREMSSTRAHLUNG</topic><topic>CARBON 11</topic><topic>CARBON 12</topic><topic>ENERGY</topic><topic>ENERGY LEVELS</topic><topic>GAMMA RADIATION</topic><topic>INDEPENDENT PARTICLE MODEL</topic><topic>IRRADIATION</topic><topic>MEASURED VALUES</topic><topic>MEV RANGE</topic><topic>MOMENTUM</topic><topic>NEUTRONS</topic><topic>NUCLEAR MODELS</topic><topic>NUCLEAR THEORY</topic><topic>ORBITS</topic><topic>PHOTONEUTRONS</topic><topic>PHOTONS</topic><topic>PHOTOPRODUCTION</topic><topic>PHYSICS</topic><topic>PROTONS</topic><topic>SPECTRA</topic><toplevel>online_resources</toplevel><creatorcontrib>Emma, V.</creatorcontrib><creatorcontrib>Milone, C.</creatorcontrib><creatorcontrib>Rubbino, A.</creatorcontrib><creatorcontrib>Universita, Catania, Italy</creatorcontrib><creatorcontrib>Centro Siciliano di Fisica Nucleare, Catania, Italy</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Emma, V.</au><au>Milone, C.</au><au>Rubbino, A.</au><aucorp>Universita, Catania, Italy</aucorp><aucorp>Centro Siciliano di Fisica Nucleare, Catania, Italy</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Energy Spectra and Angular Distribution of Photoneutrons from Carbon</atitle><jtitle>Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D</jtitle><date>1960-06-01</date><risdate>1960</risdate><volume>118</volume><issue>5</issue><spage>1297</spage><epage>1301</epage><pages>1297-1301</pages><issn>0031-899X</issn><abstract>Energy spectra and angular distribution of photoneutrons from carbon are studied by irradiation with a 30-Mev bremsstrahlung beam. The spectra exhibit a fine structure from which the following levels in C/sup 12/ may be distinguished: these coincide with levels found in the C/sup 12/( gamma ,p) and C/sup 12/( gamma ,3 alpha ) reactions. Photoneutron emission occurs predominantly by transition to the ground state of C/sup 11/. The angular distribution is of the form 1 + 1.5 sin/sup 2/ theta for all neutrons having energy E/sub n/> 3 Mev. This distribution agrees with that expected according to Wilkinson's independent- particle model for ejection from the 1 = 1 orbit. (auth)</abstract><doi>10.1103/PhysRev.118.1297</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-899X |
| ispartof | Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, 1960-06, Vol.118 (5), p.1297-1301 |
| issn | 0031-899X |
| language | eng |
| recordid | cdi_crossref_primary_10_1103_PhysRev_118_1297 |
| source | American Physical Society Journals |
| subjects | ALPHA PARTICLES ANGULAR DISTRIBUTION BREMSSTRAHLUNG CARBON 11 CARBON 12 ENERGY ENERGY LEVELS GAMMA RADIATION INDEPENDENT PARTICLE MODEL IRRADIATION MEASURED VALUES MEV RANGE MOMENTUM NEUTRONS NUCLEAR MODELS NUCLEAR THEORY ORBITS PHOTONEUTRONS PHOTONS PHOTOPRODUCTION PHYSICS PROTONS SPECTRA |
| title | Energy Spectra and Angular Distribution of Photoneutrons from Carbon |
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