SCATTERING AND ABSORPTION EFFECTS IN NEUTRON BEAM ACTIVATION-ANALYSIS EXPERIMENTS

被引：24

作者：

MACKEY, EA

COPLEY, JRD

机构：

[1] National Institute of Standards and Technology, Gaithersburg, 20899, MD

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1993年 / 167卷 / 01期

关键词：

D O I：

10.1007/BF02035471

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

We have investigated the effects of scattering and absorption in neutron beam activation analysis experiments, both by direct measurement and by Monte Carlo simulation. Significant sensitivity enhancements occur for thin disks placed at 45-degrees to the beam but very much smaller effects occur for spheres. The agreement between measurement and calculation is generally good.

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页码：127 / 132

页数：6

相关论文

共 12 条

[1]

ABRAMOWITZ M, 1970, NBS APPL MATH SER, V55, P374

[2] FACILITY FOR NONDESTRUCTIVE ANALYSIS FOR MAJOR AND TRACE-ELEMENTS USING NEUTRON-CAPTURE GAMMA-RAY SPECTROMETRY [J].

ANDERSON, DL ;

FAILEY, MP ;

ZOLLER, WH ;

WALTERS, WB ;

GORDON, GE ;

LINDSTROM, RM .

JOURNAL OF RADIOANALYTICAL CHEMISTRY, 1981, 63 (01) :97-119

[3]

ANDERSON DL, 1983, NBS SPEC PUBL, V1190, P148

[4] SCATTERING EFFECTS WITHIN AN ABSORBING SPHERE IMMERSED IN A FIELD OF NEUTRONS [J].

COPLEY, JRD .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1991, 307 (2-3) :389-397

[5] NEUTRON-SCATTERING AND ITS EFFECT ON REACTION-RATES IN NEUTRON ABSORPTION EXPERIMENTS [J].

COPLEY, JRD ;

STONE, CA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1989, 281 (03) :593-604

[6] IMPROVED MONTE-CARLO CALCULATION OF MULTIPLE-SCATTERING EFFECTS IN THERMAL-NEUTRON SCATTERING EXPERIMENTS [J].

COPLEY, JRD ;

VERKERK, P ;

VANWELL, AA ;

FREDRIKZE, H .

COMPUTER PHYSICS COMMUNICATIONS, 1986, 40 (2-3) :337-357

[7] NEUTRON-CAPTURE PROMPT GAMMA-RAY ACTIVATION-ANALYSIS FOR MULTIELEMENT DETERMINATION IN COMPLEX SAMPLES [J].

FAILEY, MP ;

ANDERSON, DL ;

ZOLLER, WH ;

GORDON, GE ;

LINDSTROM, RM .

ANALYTICAL CHEMISTRY, 1979, 51 (13) :2209-2221

[8]

FAILEY MP, 1979, ORO5173008 U MAR TEC, P23

[9] NEUTRON SELF-SHIELDING FACTORS FOR SIMPLE GEOMETRIES [J].

FLEMING, RF .

INTERNATIONAL JOURNAL OF APPLIED RADIATION AND ISOTOPES, 1982, 33 (11) :1263-1268

[10]

GILAT J, 1963, NUCLEONICS, V21, P143