ASTM E2059-15e1
快中子剂量测定用核研究乳剂的应用和分析的标准实施规程
Standard Practice for Application and Analysis of Nuclear Research Emulsions for Fast Neutron Dosimetry
ASTM E2059-15e1 发布历史
ASTM E2059-15e1由美国材料与试验协会 US-ASTM 发布于 2015。
ASTM E2059-15e1在国际标准分类中归属于: 17.240 辐射测量。
ASTM E2059-15e1 发布之时，引用了标准
- ASTM E1005 反应堆压力容器监测E706(ⅢA)用辐射监视器的应用和分析的试验方法
- ASTM E706 轻水反应堆堆芯压力容器监视标准的标准主模型,E706(0)
- ASTM E854 反应堆监测用固态径迹记录仪(SSTR)监视器的应用和分析的试验方法,E 706(IIIB)
- ASTM E910 反应堆容器监测用氦聚集流监视器的应用及分析的标准试验方法.E 706(IIIC)
- ASTM E944 反应堆监测时中子光谱调节法的应用
ASTM E2059-15e1的历代版本如下：
- 2020年 ASTM E2059-20 用于快速中子剂量法的核研究乳液的应用和分析的标准实践
- 2015年 ASTM E2059-15e1 快中子剂量测定用核研究乳剂的应用和分析的标准实施规程
- 2015年 ASTM E2059-15 用于快速中子剂量的核研究乳液应用和分析的标准实施规程
- 2006年 ASTM E2059-06(2010) 快中子剂量测定用核研究乳剂的应用和分析的标准操作规程
- 2006年 ASTM E2059-06 快中子剂量测定用核研究乳剂的应用和分析标准规程
- 2005年 ASTM E2059-05 快中子剂量测定用核研究乳剂的应用和分析的标准规程
- 2000年 ASTM E2059-00a 快中子剂量测定用核研究乳剂的应用和分析的标准实施规程
4.1 Integral Mode Dosimetry—As shown in 3.2, two different integral relationships can be established using proton-recoil emulsion data. These two integral reactions can be obtained with roughly an order of magnitude reduction in scanning effort. Consequently this integral mode is an important complementary alternative to the customary differential mode of NRE spectrometry. The integral mode can be applied over extended spatial regions, for example, perhaps up to as many as ten in-situ locations can be covered for the same scanning effort that is expended for a single differential measurement. Hence the integral mode is especially advantageous for dosimetry applications which require extensive spatial mapping, such as exist in Light Water Reactor-Pressure Vessel (LWR-PV) benchmark fields (see Test Method E1005). In low power benchmark fields, NRE can be used as integral dosimeters in a manner similar to RM, solid state track recorders (SSTR) and helium accumulation monitors (HAFM) neutron dosimeters (see Test Methods E854 and E910). In addition to spatial mapping advantages of these other dosimetry methods, NRE offer fine spatial resolution and can therefore be used in-situ for fine structure measurements. In integral mode scanning, both absolute reaction rates, that is I(ET) and J(Emin), are determined simultaneously. Separate software codes need to be used to permit operation of a computer based interactive system in the integral mode (see Section 9). It should be noted that the integrals I(ET) and J(Emin) possess different units, namely proton-recoil tracks/MeV per hydrogen atom and proton-recoil tracks per hydrogen atom, respectively.
4.2 Applicability for Spectral Adjustment Codes—In the integral mode, NRE provide absolute integral reaction rates that can be used in neutron spectrum least squares adjustment codes (see Guide E944). In the past, such adjustment codes could not utilize NRE integral reaction rates because of the non-existence of NRE data. NRE integral reaction rates provide unique benchmark data for use in least squares spectral adjustment codes. The unique significance of NRE integral data arises from a number of attributes, which are described separately below. Thus, inclusion of NRE integral reaction rate data in the spectral adjustment calculations can result in a significant improvement in the determination of neutron spectra in low power benchmark fields.
4.3 The Neutron Scattering Cross Section of Hydrogen—Integral NRE reaction rates are based on the standard neutron scattering cross section of hydrogen. For fast neutron spectrometry and dosimetry applications, the accuracy of this (n,p) cross section over extended energy regions is essentially unmatched. A semi-empirical representation of the energy-dependence of the (n,p) cross section is given in
- 标准号
- ASTM E2059-15e1
- 发布
- 2015年
- 发布单位
- 美国材料与试验协会
- 替代标准
- ASTM E2059-20
- 当前最新
- ASTM E2059-20
- 引用标准
- ASTM E1005 ASTM E706 ASTM E854 ASTM E910 ASTM E944