Ta-181(n,gamma) cross section and average resonance parameter measurements in the unresolved resonance region from 24 to 1180 keV using a filtered-beam technique

McDermott B. J.; Blain E.; Daskalakis A.; Thompson N.; Youmans A.; Choun H. J.; Steinberger W.; Danon Y.; Barry D. P.; Block R. C.; Epping B. E.; Leinweber G.; Rapp M. R.

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Ta-181(n,gamma) cross section and average resonance parameter measurements in the unresolved resonance region from 24 to 1180 keV using a filtered-beam technique

机译：TA-181（N，GAMMA）横截面和使用过滤梁技术的未解决的谐振区域中的平均共振参数测量从24到1180kev

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A new array of four Deuterated Benzene (C6D6) detectors has been installed at the Gaerttner Linear Accelerator Center at Rensselaer Polytechnic Institute for the purpose of measuring neutron capture cross sections in the keV region. Measurements were performed on samples of Ta-181 in the unresolved resonance region (URR) using a filtered-beam technique, by which a 30 cm iron filter was placed in a white-spectrum neutron beam to remove all time-dependent. gamma-ray background and all neutrons except those transmitted through resonance-potential interference "windows" in the iron. The resulting filtered beam was effectively a quasimonoenergetic neutron source, which was used for performing measurements on isotopes with narrow level spacings in the URR. The capture cross-section results obtained for two thicknesses of tantalum are in agreement with those documented in the JEFF-3.2 library, as are the average resonance parameters obtained via a fit to the data using the SAMMY-FITACS code.

机译：伦斯勒理工学院盖特纳直线加速器中心安装了一个由四个氘化苯（C6D6）探测器组成的新阵列，用于测量keV区域的中子俘获截面。使用过滤束技术对未分辨共振区（URR）内的Ta-181样品进行测量，通过过滤束技术，在白谱中子束中放置一个30厘米的铁过滤器，以消除所有时间依赖性。伽马射线背景和所有中子，除了通过铁中共振势干涉“窗口”传输的中子。由此产生的过滤束实际上是一个准能中子源，用于对URR中窄能级间距的同位素进行测量。两种厚度钽的俘获截面结果与JEFF-3.2库中记录的结果一致，通过使用SAMY-FITACS代码拟合数据获得的平均共振参数也一致。

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《Physical review, C》 |2017年第1期|共11页
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McDermott B. J.; Blain E.; Daskalakis A.; Thompson N.; Youmans A.; Choun H. J.; Steinberger W.; Danon Y.; Barry D. P.; Block R. C.; Epping B. E.; Leinweber G.; Rapp M. R.;
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Rensselaer Polytech Inst Gaerttner LINAC Ctr 110 8th St Troy NY 12180 USA;

Rensselaer Polytech Inst Gaerttner LINAC Ctr 110 8th St Troy NY 12180 USA;

Rensselaer Polytech Inst Gaerttner LINAC Ctr 110 8th St Troy NY 12180 USA;

Rensselaer Polytech Inst Gaerttner LINAC Ctr 110 8th St Troy NY 12180 USA;

Rensselaer Polytech Inst Gaerttner LINAC Ctr 110 8th St Troy NY 12180 USA;

Rensselaer Polytech Inst Gaerttner LINAC Ctr 110 8th St Troy NY 12180 USA;

Rensselaer Polytech Inst Gaerttner LINAC Ctr 110 8th St Troy NY 12180 USA;

Rensselaer Polytech Inst Gaerttner LINAC Ctr 110 8th St Troy NY 12180 USA;

Naval Nucl Lab POB 1072 Schenectady NY 12301 USA;

Naval Nucl Lab POB 1072 Schenectady NY 12301 USA;

Naval Nucl Lab POB 1072 Schenectady NY 12301 USA;

Naval Nucl Lab POB 1072 Schenectady NY 12301 USA;

Naval Nucl Lab POB 1072 Schenectady NY 12301 USA;

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中图分类原子核物理学、高能物理学;
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机译：TA-181（N，GAMMA）横截面和使用过滤梁技术的未解决的谐振区域中的平均共振参数测量从24到1180kev
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Ta-181(n,gamma) cross section and average resonance parameter measurements in the unresolved resonance region from 24 to 1180 keV using a filtered-beam technique

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