Adjustment method of vertically focused monochromator of neutron diffractometer

XIE Chaomei1 LIU Lijuan1 LIU Yanhong1 PENG Mei1 LI Xinxi1 A Boulkin2 V Oulianov2 JIANG Li1 TANG Bin1 1

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Adjustment method of vertically focused monochromator of neutron diffractometer

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- Adjustment method of vertically focused monochromator of neutron diffractometer
- NUCLEAR TECHNIQUES Issue 4, (2007)
- 作者机构：
  
  1. 中国工程物理研究院核物理与化学研究所
  2. 俄罗斯圣彼得堡核物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC： O571.5
- Published：01 April 2007
- 稿件说明：
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[1]谢超美,刘丽鹃,刘艳红,彭梅,李新喜,A Boulkin,V Oulianov,蒋励,唐斌.中子粉末衍射谱仪垂直聚焦单色器的调试方法[J].核技术,2007(04):282-285.

XIE Chaomei1 LIU Lijuan1 LIU Yanhong1 PENG Mei1 LI Xinxi1 A Boulkin2 V Oulianov2 JIANG Li1 TANG Bin1 1. Adjustment method of vertically focused monochromator of neutron diffractometer[J]. Nuclear techniques, 2007, (4): 282-285.
[1]谢超美,刘丽鹃,刘艳红,彭梅,李新喜,A Boulkin,V Oulianov,蒋励,唐斌.中子粉末衍射谱仪垂直聚焦单色器的调试方法[J].核技术,2007(04):282-285. DOI：

XIE Chaomei1 LIU Lijuan1 LIU Yanhong1 PENG Mei1 LI Xinxi1 A Boulkin2 V Oulianov2 JIANG Li1 TANG Bin1 1. Adjustment method of vertically focused monochromator of neutron diffractometer[J]. Nuclear techniques, 2007, (4): 282-285. DOI：

摘要

介绍了中子散射谱仪用的中子垂直聚焦单色器的基本原理

描述了安装在中国工程物理研究院核物理与化学研究所的中子衍射谱仪的中子垂直聚焦单色器的调节方法。在样品处利用中子照相确定了束斑的中心位置和大小

通过在水平和垂直方向上的扫描得到了可利用的中子束的面积

测量了该处的最大中子注量率

结果表明在样品处得到略大于一倍的增益。

Abstract

The article introduces the basic principle of the vertically focused monochromator used in neutron scattering spectrometer which has been installed in Institute of Nucleus Physics and Chemistry as well as the adjustment method of the monochromator. The central position and dimension of neutron beam were determined by using neutron radiography

and the available area of the beam was obtained by scanning the sample position along horizontal and vertical directions. The biggest nutron fluence was measured at the sample position. The measured neutron fluence rate data show that almost double gain was got at the sample position.

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