Research on neutron-gamma logging with an <sup>241</sup>Am-Be source based on LaBr<sub>3</sub>:Ce detector

Wenjie WAN; Wei ZHOU; Jianbin ZHOU; Xiang ZHAO; Jie YU; Xuxin HE; Xiang LUO; Hongjiang QIN; Qiulin XIANG

doi:10.11889/j.0253-3219.2017.hjs.40.110404

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Research on neutron-gamma logging with an ²⁴¹Am-Be source based on LaBr₃:Ce detector

NUCLEAR ELECTRONICS AND INSTRUMENTATION | 更新时间：2021-05-19

- Research on neutron-gamma logging with an ²⁴¹Am-Be source based on LaBr₃:Ce detector
- NUCLEAR TECHNIQUES Vol. 40, Issue 11, Article number: 110404(2017)
- 作者机构：
  
  1.成都理工大学核技术与自动化工程学院成都 610059
  2.中国石油测井集团有限公司西安 710032
  3.中核建中核燃料元件有限公司宜宾 644000
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;the National Key Research and Development Program of China;Science and Technology Talent Project
- DOI：10.11889/j.0253-3219.2017.hjs.40.110404
  CLC： TL812
- Received：17 March 2017，
  
  Revised：20 April 2017，
  
  Published：10 November 2017
- 稿件说明：
移动端阅览
Wenjie WAN, Wei ZHOU, Jianbin ZHOU, et al. Research on neutron-gamma logging with an ²⁴¹Am-Be source based on LaBr₃:Ce detector[J]. Nuclear techniques, 2017, 40(11): 110404
DOI：

Wenjie WAN, Wei ZHOU, Jianbin ZHOU, et al. Research on neutron-gamma logging with an ²⁴¹Am-Be source based on LaBr₃:Ce detector[J]. Nuclear techniques, 2017, 40(11): 110404 DOI： 10.11889/j.0253-3219.2017.hjs.40.110404.

摘要

针对国内中子测井所使用探测器探测效率不能满足实际应用的情况，采用

241

Am-Be中子源和LaBr

：Ce探测器在中石油公司一个放射性同位素中子测试井中对H、C、Fe等几种地壳元素进行了测量，并与现今测井常用的锗酸铋（Bismuth Germanium Oxide，BGO）探测器进行对比测量。测得的能谱结果对比发现，进行地壳元素测量时LaBr

：Ce探测器比BGO探测器具有更高的能量分辨率，并且在相同外部测试条件下BGO探测器探测到Fe峰非常微弱。因此将LaBr

：Ce探测器进一步应用到测井中的市场前景广阔。

Abstract

Background

The widely used bismuth germanium oxide (BGO) detector has low energy resolution in neutron well logging

and thus cannot meet the requirements of some practical applications.

Purpose

This study aims to obtain high energy resolution spectrum using a LaBr

:Ce detector in neutron-gamma logging.

Methods

Several common geochemical elements such as H

C and Fe were measured using

241

Am-Be neutron source with LaBr

:Ce detector in a radioisotope neutron testing well belonging to China Petroleum Group Logging Corporation

and a commonly used BGO detector was employed to provide a comparison with LaBr

:Ce detector under the same well logging test condition.

Results

The energy spectrum of LaBr

:Ce detector exhibited higher energy resolution than that of BGO detector

and a clear signal of Fe whilst a very weak Fe signal in energy spectrum of LaBr

:Ce detector.

Conclusion

The application of LaBr

:Ce detector in nuclear logging has a promising prospect.

关键词

Keywords

references

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Research on neutron-gamma logging with an 241Am-Be source based on LaBr3:Ce detector

DOI：10.11889/j.0253-3219.2017.hjs.40.110404

摘要

Abstract

关键词

Keywords

references

Research on neutron-gamma logging with an ²⁴¹Am-Be source based on LaBr₃:Ce detector