THE ROLE OF RADIUM DISTRIBUTION AND POROSITY IN RADON EMANATION FROM SOLIDS

被引：28

作者：

SEMKOW, TM ^{[1
]}

PAREKH, PP ^{[1
]}

机构：

[1] SUNY ALBANY,ALBANY,NY 12222

来源：

GEOPHYSICAL RESEARCH LETTERS | 1990年 / 17卷 / 06期

关键词：

D O I：

10.1029/GL017i006p00837

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Essential features of the grain emanation and aggregation models are presented. The presence of thin layers containing Ra is shown to enhance the Rn emanation from the grains. A multiple α‐recoil mechanism is suggested to create a nonuniform Ra distribution. It is also shown that the rnesoporosity may increase Rn emanation and the macroporosity may contribute to Rn transport. Copyright 1990 by the American Geophysical Union.

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页码：837 / 840

页数：4

相关论文

共 11 条

[1] USING RADON AS PROBE FOR INVESTIGATING CHARACTERISTICS OF FRACTURES IN CRYSTALLINE MINERALS [J].

AMIN, BS ;

RAMA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1986, 17 (5-6) :527-529

[2]

AUSTIN SR, 1975, P PANEL RADON URANIU, P151

[3] THEORY OF ALPHA-RECOIL EFFECTS ON RADON RELEASE AND ISOTOPIC DISEQUILIBRIUM [J].

FLEISCHER, RL .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1983, 47 (04) :779-784

[4]

Flugge S, 1939, Z PHYS CHEM B-CHEM E, V42, P179

[5] RADIUM, THORIUM AND RADIOACTIVE LEAD ISOTOPES IN GROUNDWATERS - APPLICATION TO THE INSITU DETERMINATION OF ADSORPTION-DESORPTION RATE CONSTANTS AND RETARDATION FACTORS [J].

KRISHNASWAMI, S ;

GRAUSTEIN, WC ;

TUREKIAN, KK ;

DOWD, JF .

WATER RESOURCES RESEARCH, 1982, 18 (06) :1663-1675

[6] COMPARATIVE-STUDY OF RN-222, 40AR, 39AR AND AR-37 LEAKAGE FROM ROCKS AND MINERALS - IMPLICATIONS FOR THE ROLE OF NANOPORES IN GAS-TRANSPORT THROUGH NATURAL SILICATES [J].

KRISHNASWAMI, S ;

SEIDEMANN, DE .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1988, 52 (03) :655-658

[7]

LOWELL S, 1979, INTRO POWDER SURFACE, P80

[8] DESORPTION OF RADON AT THE EARTHS SURFACE [J].

SCHERY, SD ;

WHITTLESTONE, S .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1989, 94 (D15) :18297-18303

[9]

SEMKOW TM, 1990, IN PRESS GEOCHIM COS

[10]

TANNER AB, 1980, 3 NAT RAD ENV S P, V1, P5