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CR-39 α-particle autoradiographs of some radioactive minerals from SW England
Abstracts--I lth ICSSNTD
CR-39 a-PARTICLE AUTORADIOGRAPHS MINERALS FROM SW ENGLAND
387
OF SOME RADIOACTIVE
S.M. Houstoun and N.L. Jefferies Department
of Geology,
University
of Bristol,
Bristol, U.K.
ABSTRACT We present the results of our investigations into the distribution of radioactive elements in some of the granites and sedimentary rocks from SW England. Exposure of cut sections and thin sections to CR-39 nuclear track plastic over a period of two weeks produced a particle autoradiographs. Techniques for locating and identifying the radioactive minerals are discussed and a brief summary of our results included.
SESSION 3.5 : ~ D I C I N E
~/gD BIOLOGY, a-SPECTROSCOPY Chairman: H.G Paretzke
~ND LET SPECTRA
APPLICATION OF NUCLEAR TRACK DETECTORS IN BIOLOGYAND MEDICINE E. V. Benton, Physics Department, University of San Francisco, San Francisco, California 94117, USA
ABSTRACT Nuclear track detectors have found extensive applications in biology and medicine. These range from dosimetry and radiography to the use of f i l t e r s and membranes for the collection of aerosol particles and cancer c e l l s , to more exotic applications such as the imaging of individual chromosomes. Someof these and other biomedical applications are reviewed in this paper.
HIGH RESOLUTION e-PARTICLE SPECTROSCOPY CR-39 PLASTIC TRACK DETECTOR A. P. F e w s
USING
and D. L. H e n s h a w
H. H. Wills Physics Laboratory University of Bristol Tyncls[[ Avenue Bristol B S 8 ITL, U.K.
ABSTRACT W e present a technique for high resolution e-particle spectroscopy using C R - 3 9 plastic. A n energy resolution, bE, close to the range straggling limit is reported on particles of energy .~ 3 M e V under typical etch conditions. F o r 6 M e V ~-particles bE is ~ 35 k e V on individual tracks. F o r groups of particles 6E ~ 20 k e V can be achieved using certain data selection criteria.
CR-39 a-PARTICLE AUTORADIOGRAPHS MINERALS FROM SW ENGLAND
387
OF SOME RADIOACTIVE
S.M. Houstoun and N.L. Jefferies Department
of Geology,
University
of Bristol,
Bristol, U.K.
ABSTRACT We present the results of our investigations into the distribution of radioactive elements in some of the granites and sedimentary rocks from SW England. Exposure of cut sections and thin sections to CR-39 nuclear track plastic over a period of two weeks produced a particle autoradiographs. Techniques for locating and identifying the radioactive minerals are discussed and a brief summary of our results included.
SESSION 3.5 : ~ D I C I N E
~/gD BIOLOGY, a-SPECTROSCOPY Chairman: H.G Paretzke
~ND LET SPECTRA
APPLICATION OF NUCLEAR TRACK DETECTORS IN BIOLOGYAND MEDICINE E. V. Benton, Physics Department, University of San Francisco, San Francisco, California 94117, USA
ABSTRACT Nuclear track detectors have found extensive applications in biology and medicine. These range from dosimetry and radiography to the use of f i l t e r s and membranes for the collection of aerosol particles and cancer c e l l s , to more exotic applications such as the imaging of individual chromosomes. Someof these and other biomedical applications are reviewed in this paper.
HIGH RESOLUTION e-PARTICLE SPECTROSCOPY CR-39 PLASTIC TRACK DETECTOR A. P. F e w s
USING
and D. L. H e n s h a w
H. H. Wills Physics Laboratory University of Bristol Tyncls[[ Avenue Bristol B S 8 ITL, U.K.
ABSTRACT W e present a technique for high resolution e-particle spectroscopy using C R - 3 9 plastic. A n energy resolution, bE, close to the range straggling limit is reported on particles of energy .~ 3 M e V under typical etch conditions. F o r 6 M e V ~-particles bE is ~ 35 k e V on individual tracks. F o r groups of particles 6E ~ 20 k e V can be achieved using certain data selection criteria.