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|a (TOE)ost6250350
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|a (TOE)6250350
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|a TOE
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|a GDWR
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|a 74
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|a E 1.99:conf-790437--4
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|a E 1.99:conf-790437--4
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|a conf-790437--4
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|a Interpretation of combined measurements of positron mean-lifetime and Doppler-broadened lineshape in aluminum and copper. [Yield plots]
|h [electronic resource]
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| 260 |
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|a Washington, D.C. :
|b United States. Department of Energy. ;
|a Oak Ridge, Tenn. :
|b distributed by the Office of Scientific and Technical Information, U.S. Department of Energy,
|c 1979.
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| 300 |
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|a Pages: 5 :
|b digital, PDF file.
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| 336 |
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|a text
|b txt
|2 rdacontent.
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| 337 |
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|a computer
|b c
|2 rdamedia.
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| 338 |
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|a online resource
|b cr
|2 rdacarrier.
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|a Published through SciTech Connect.
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|a 01/01/1979.
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| 500 |
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|a "conf-790437--4"
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| 500 |
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|a 5. international conference on positron annihilation, Lake Yamanaka, Japan, 8 Apr 1979.
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| 500 |
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|a Tam, S. W.; Fluss, M. J.; Smedskjaer, L. C.; Siegel, R. W.
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| 520 |
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|a Combined measurements of the positron mean-lifetime, anti tau, and the Doppler-broadened lineshape-parameter F in Al and Cu yield plots of anti tau versus F that exhibit curvature. Two possible interpretations of the Al data are considered, both of which seem to account reasonably well for the observed curvature. The first interpretation is based upon the conventional two-state trapping model, in which the bulk (Bloch) state and monovacancy-trapped state are the only states from which a positron can be annihilated. At least part of the curvature in anti tau vs F is explained by the fact that, in general, (d tau/sub b//dT)/(dF/sub b//dT) differs from (tau/sub v/-tau/sub b/)/(F/sub v/-F/sub b/). The second approach used to analyze the Al data is based upon a three-state trapping model in which divacancies as well as monovacancies are considered as possible positron traps. In this case an improvement in the fit to the Al data was obtained using physically reasonable divacancy parameters, thus indicating a possible future application of such combined measurements. The two-state trapping model analysis of the Cu data also indicates that the temperature dependences of tau/sub b/ and F/sub b/ contribute significantly to the curvature of the anti tau vs F plot. 7 references.
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| 536 |
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|b W-31-109-ENG-38.
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| 650 |
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|a Aluminium.
|2 local.
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| 650 |
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|a Positrons.
|2 local.
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| 650 |
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|a Copper.
|2 local.
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| 650 |
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|a Lifetime.
|2 local.
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| 650 |
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|a Annihilation.
|2 local.
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| 650 |
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|a Bloch Theory.
|2 local.
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| 650 |
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|a Doppler Effect.
|2 local.
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| 650 |
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|a Experimental Data.
|2 local.
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| 650 |
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|a Graphs.
|2 local.
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| 650 |
|
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|a Temperature Dependence.
|2 local.
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| 650 |
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|a Time Dependence.
|2 local.
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| 650 |
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|a Trapping.
|2 local.
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| 650 |
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|a Antileptons.
|2 local.
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| 650 |
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|a Antimatter.
|2 local.
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| 650 |
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|a Antiparticles.
|2 local.
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| 650 |
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|a Basic Interactions.
|2 local.
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| 650 |
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|a Data.
|2 local.
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| 650 |
|
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|a Data Forms.
|2 local.
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| 650 |
|
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|a Electromagnetic Interactions.
|2 local.
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| 650 |
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|a Elementary Particles.
|2 local.
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| 650 |
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7 |
|a Elements.
|2 local.
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| 650 |
|
7 |
|a Fermions.
|2 local.
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| 650 |
|
7 |
|a Information.
|2 local.
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| 650 |
|
7 |
|a Interactions.
|2 local.
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| 650 |
|
7 |
|a Leptons.
|2 local.
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| 650 |
|
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|a Metals.
|2 local.
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| 650 |
|
7 |
|a Numerical Data.
|2 local.
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| 650 |
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|a Transition Elements.
|2 local.
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| 650 |
|
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|a Atomic And Molecular Physics.
|2 edbsc.
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| 710 |
2 |
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|a Argonne National Laboratory.
|4 res.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|4 spn.
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| 710 |
1 |
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|a United States.
|b Department of Energy.
|b Office of Scientific and Technical Information.
|4 dst.
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| 856 |
4 |
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|u http://www.osti.gov/servlets/purl/6250350/
|z Online Access
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| 907 |
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|a .b78435936
|b 03-08-23
|c 11-07-14
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| 998 |
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|a web
|b 11-07-14
|c f
|d m
|e p
|f eng
|g
|h 0
|i 1
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| 956 |
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|a Information bridge
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|i 5ff86e7b-c09d-5467-b37b-7b103c61f18c
|s f4aef21f-2d24-527c-bd3d-814517103437
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| 952 |
f |
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|p Can circulate
|a University of Colorado Boulder
|b Online
|c Online
|d Online
|e E 1.99:conf-790437--4
|h Superintendent of Documents classification
|i web
|n 1
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