NEUTRON-PRODUCTION IN EXTENDED CU-TARGET IRRADIATED WITH RELATIVISTIC C-12-IONS AT DUBNA, AS STUDIED WITH SSNTD AND NUCLEAR CHEMISTRY
文献类型：期刊论文
| 作者 | ABDULLAEV, IG; ADLOFF, JC; BERSINA, IG; BISPLINGHOFF, B; BRADNOVA, V; BRANDT, R; BUTSEV, VS; CUI, HH; DEBEAUVAIS, M; DWIVEDI, KK |
| 刊名 | RADIATION MEASUREMENTS
 |
| 出版日期 | 1995 |
| 卷号 | 25期号:1-4页码:#REF! |
| 关键词 | RELATIVISTIC HEAVY IONS ENHANCED NUCLEAR CROSS-SECTIONS |
| 通讯作者 | ABDULLAEV, IG (reprint author), DUBNA JOINT NUCL RES INST,FLEROV LAB NUCL REACT,DUBNA 141980,RUSSIA. |
| 英文摘要 | An extended Cu-target was irradiated with 22 and 44 GeV carbon ions, The target was in contact with a (CH2)(n)-block for the moderation of secondary neutrons. Small holes in the moderator were filled with either lanthanium salts or uranium oxide. The reaction La-139 (n,gamma) La-140 -->/(beta) was studied via the decay of La-140 (40 h), and the reaction U-238 (n, gamma) U-239 -->/(beta) Np-239 -->/(beta) was studied via the decay of Np-239 (2.3 d). In addition, a variety of solid state nuclear track detectors (SSNTD) were used. Results will be presented. The yields for the formation of (n, gamma) products agree essentially with other experiments on extended targets carried out at the Synchrophasotron LHE, JINR (Dubna). To a first approximation, the breeding rate of (n, gamma) products, as well as the specific track density, seen with several SSNTDs, doubles when the carbon energy is increased from 22 to 44 GeV. If, however, results at 44 GeV are compared in detail to those at 22 GeV, we observe an excess of (37 +/- 9) % in the experimentally observed Np-239-breeding rate over theoretical estimations. Experiments using solid state nuclear track detectors are giving similar results. We also observed in the past such excess in the yield of other secondary particles in relativistic heavy ion interactions above a total energy of approximately 35-40 GeV. |
| 学科主题 | Nuclear Science & Technology |
| 类目[WOS] | Nuclear Science & Technology |
| 收录类别 | SCI |
| WOS记录号 | WOS:A1995RE48000054 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/227011]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | ABDULLAEV, IG,ADLOFF, JC,BERSINA, IG,et al. NEUTRON-PRODUCTION IN EXTENDED CU-TARGET IRRADIATED WITH RELATIVISTIC C-12-IONS AT DUBNA, AS STUDIED WITH SSNTD AND NUCLEAR CHEMISTRY[J]. RADIATION MEASUREMENTS,1995,25(1-4):#REF!. |
| APA | ABDULLAEV, IG.,ADLOFF, JC.,BERSINA, IG.,BISPLINGHOFF, B.,BRADNOVA, V.,...&ZAMANI, M.(1995).NEUTRON-PRODUCTION IN EXTENDED CU-TARGET IRRADIATED WITH RELATIVISTIC C-12-IONS AT DUBNA, AS STUDIED WITH SSNTD AND NUCLEAR CHEMISTRY.RADIATION MEASUREMENTS,25(1-4),#REF!. |
| MLA | ABDULLAEV, IG,et al."NEUTRON-PRODUCTION IN EXTENDED CU-TARGET IRRADIATED WITH RELATIVISTIC C-12-IONS AT DUBNA, AS STUDIED WITH SSNTD AND NUCLEAR CHEMISTRY".RADIATION MEASUREMENTS 25.1-4(1995):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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