An improved gamma well counter for radioactive tracer applications

A simple model for the study of bone calcium metabolism is proposed. It describes the kinetics of a radioactive tracer in terms of an open single compartment system with an expanding volume for a finite period of time. In addition to the simplicity of the hypotheses introduced, the model is able to give a good description of the biological processes which regulate calcium kinetics. Moreover the functional parameters can be easily calculated, even just graphically. 15 normal subjects and 22 patients affected by various bone diseases were studied. The results were compared with those obtained by using the model proposed by Burkinshaw et al. and the method described by Reeve et al.

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Evaluation of Vigor Tests in Soybean Seeds: Relationship of ATP, Conductivity, and Radioactive Tracer Multiple Criteria Laboratory Tests to Field Performance 1

Crop Science ◽

10.2135/cropsci1979.0011183x001900060015x ◽

1979 ◽

Vol 19 (6) ◽

pp. 806-810 ◽

Cited By ~ 18

Author(s):

Robert W. Yaklich ◽

Martin M. Kulik ◽

James D. Anderson

Keyword(s):

Laboratory Tests ◽

Field Performance ◽

Radioactive Tracer ◽

Multiple Criteria ◽

Soybean Seeds ◽

Relationship Of

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VARIABLES AFFECTING THE COUNTING OF C*SUP 14/ IN THE LIQUID PHASE WITH A GEIGER-MUELLER TUBE. PART 1. DETERMINATION OF VAPOR-LIQUID EQUILIBRIA OF A TERNARY MIXTURE WITH A RADIOACTIVE TRACER. PART 2 (thesis)

10.2172/4406604 ◽

1953 ◽

Author(s):

T.T. Szabo

Keyword(s):

Liquid Phase ◽

Ternary Mixture ◽

Radioactive Tracer ◽

Vapor Liquid Equilibria ◽

Vapor Liquid

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A simple radioactive tracer method for studying sorption and diffusion of vapours in polymers

European Polymer Journal ◽

10.1016/0014-3057(75)90021-x ◽

1975 ◽

Vol 11 (5-6) ◽

pp. 397-398 ◽

Cited By ~ 2

Author(s):

A. Dyer ◽

A.C. Newns

Keyword(s):

Radioactive Tracer ◽

Tracer Method ◽

Radioactive Tracer Method ◽

And Diffusion

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Guidelines for Radioactive Tracer Studies of the Heart and Circulation

Radiology ◽

10.1148/116.1.229 ◽

1975 ◽

Vol 116 (1) ◽

pp. 229-230

Author(s):

S. James Adelstein

Keyword(s):

Radioactive Tracer ◽

Tracer Studies

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Radioactive Tracer SurveyingA Comprehensive Report

Journal of Petroleum Technology ◽

10.2118/2413-pa ◽

1970 ◽

Vol 22 (06) ◽

pp. 661-669 ◽

Cited By ~ 2

Author(s):

W.F.N. Kelldorf

Keyword(s):

Radioactive Tracer

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Radioactive Tracer Study Performed in a Dipole Geometry in a Highly Conductive Fracture Zone

MRS Proceedings ◽

10.1557/proc-212-677 ◽

1990 ◽

Vol 212 ◽

Cited By ~ 6

Author(s):

Johan Byegård ◽

Gunnar Skarnemark ◽

Mats Skålberg

Keyword(s):

Metal Ions ◽

Metal Complexes ◽

Fracture Zone ◽

Radioactive Tracer ◽

Tracer Experiment ◽

Tracer Study ◽

Redox Potentials ◽

Chemical Analogue

ABSTRACTA radioactive tracer experiment has been performed in a highly conductive fracture zone, using a dipole geometry. Anions (131I− and 82Br−) and complexed metal ions (51Cr-EDTA, 58Co-EDTA, 111In-EDTA, 140La-DOTA, 160Tb-EDTA, 169Yb-EDTA and 177Lu-DOTA) have been injected and their properties as non-sorbing tracers were evaluated. Besides, studies of slightlysorbing cations (24Na+, 58Co2+, 86Rb+ and 201T1+) were performed. 99mTcO4 and its chemical analogue 186ReO4 were also injected to study the behaviour of Tc at low redox-potentials. Breakthrough was obtained for Re and for all metal complexes and anions. Some differences in the recovery yields could be seen. No transport of cations, except for Na, could be measured. No breakthrough of Tc could be observed. This indicates that TcO4− was reduced and sorbed.

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