Simultaneous measurement of neutron-induced capture and fission reactions at CERN

Simultaneous measurement of neutron-induced capture and fission reactions at CERN
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在欧洲核子研究中心同时测量中子引起的俘获和裂变反应

DOI:
10.1140/epja/i2012-12029-2
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发表时间:
2012
期刊:
The European Physical Journal A
影响因子:
--
通讯作者:
Guerrero C
Guerrero C
中科院分区:
--
文献类型:
--
作者:
Guerrero C

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测量裂变元素的俘获截面对设计创新的核反应堆和管理核废料至关重要,但由于竞争性裂变反应产生的射线背景,测量裂变元素的俘获截面面临特殊困难。在欧洲核子研究中心的中子飞行时间装置n_TOF上,我们将总吸收量热计(TAC)俘获探测器与一组三个235 U装载的MicroMegas(MGAS)裂变探测器相结合,用于同时测量俘获和裂变两种反应。这里提出的结果包括在该过程中涉及的三个检测效率的测定:,和。在实验测量中,我们成功地同时测量了~(235)U的俘获截面和裂变截面,准确地分离了这两类反应。本文的工作证明了在n_TOF上精确测量裂变同位素的俘获截面是可行的。
The measurement of the capture cross-section of fissile elements, of utmost importance for the design of innovative nuclear reactors and the management of nuclear waste, faces particular difficulties related to the-ray background generated in the competing fission reactions. At the CERN neutron time-of-flight facility n_TOF we have combined the Total Absorption Calorimeter (TAC) capture detector with a set of three235U loaded MicroMegas (MGAS) fission detectors for measuring simultaneously two reactions: capture and fission. The results presented here include the determination of the three detection efficiencies involved in the process:,and. In the test measurement we have succeeded in measuring simultaneously with a high total efficiency the235U capture and fission cross-sections, disentangling accurately the two types of reactions. The work presented here proves that accurate capture cross-section measurements of fissile isotopes are feasible at n_TOF.
n_TOF 处 $^{238}$U、$^{241}$Am 和 $^{243}$Am 的中子俘获截面测量
DOI: --
发表时间: 2009
期刊:
影响因子: --
作者:
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DOI: --
发表时间: 2009
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DOI: 10.3938/jkps.59.1597
发表时间: 2011-08-11
影响因子: 0.6
作者:
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通讯作者: Siegler, P.
锕系元素光子强度函数的研究:以U-235、Np-238和Pu-241为例
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
C. Guerrero;F. Álvarez;D. Cano;T. Martinez;E. Mendoza;D. Villamarín;N. Colonna;M. Meaze;S. Marrone;G. Tagliente;R. Terlizzi;F. Belloni;U. Abbondanno;K. Fujii;P. Milazzo;C. Moreau;G. Aerts;E. Berthoumieux;W. Dridi;F. Gunsing;J. Pancin;L. Perrot;A. Plukis;H. Álvarez;I. Ďuran;C. Paradela;S. Andriamonje;M. Calviani;E. Chiaveri;E. González;Y. Kadi;M. C. Vicente;V. Vlachoudis;J. Andrzejewski;J. Marganiec;P. Assimakopoulos;D. Karadimos;D. Karamanis;C. Papachristodoulou;N. Patronis;L. Audouin;S. David;L. Ferrant;S. Isaev;C. Stéphan;L. Tassan;G. Badurek;E. Jericha;H. Leeb;T. Rauscher
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DOI: --
发表时间: 2003
期刊:
影响因子: --
作者:
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通讯作者: u.a. Autoren