Matches in SemOpenAlex for { <https://semopenalex.org/work/W2076173645> ?p ?o ?g. }
- W2076173645 abstract "We report the results of a series of current scaling experiments with the Z accelerator for the compact, single, 20-mm diameter, 10-mm long, tungsten-wire arrays employed for the double-ended hohlraum ICF concept [M. E. Cuneo, Plasma Phys. Controlled Fusion 48, R1 (2006)]. We measured the z -pinch peak radiated x-ray power and total radiated x-ray energy as a function of the peak current, at a constant implosion time tau_{imp}=80ns . Previous x-ray emission current scaling for these compact arrays was obtained at tau_{imp}=95ns in the work of Stygar [Phys. Rev. E 69, 046403 (2004)]. In the present study we utilized lighter single-tungsten-wire arrays. For all the measurements, the load hardware dimensions, materials, and array wire number (N=300) were kept constant and were the same as the previous study. We also kept the normalized load current spatial and temporal profiles the same for all experiments reported in this work. Two different currents, 11.2+/-0.2MA and 17.0+/-0.3MA , were driven through the wire arrays. The average peak x-ray power for these compact wire arrays increased by 26%+/-7%to158+/-26TW at 17+/-0.3MA from the 125+/-24TW obtained at a peak current of 18.8+/-0.5MA with tau_{imp}=95ns . The higher peak power of the faster implosions may possibly be attributed to a higher implosion velocity, which in turn improves the implosion stability, and/or to shorter wire ablation times, which may lead to a decrease in trailing mass and trailing current. Our results show that the scaling of the radiated x-ray peak power and total radiated x-ray energy scaling with peak drive current to be closer to quadratic than the results of Stygar We find that the x-ray peak radiated power is P_{r} proportional, variantI;{1.57+/-0.20} and the total x-ray radiated energy E_{r} proportional, variantI;{1.9+/-0.24} . We also find that the current scaling exponent of the power is sensitive to the inclusion of a single data point with a peak power at least 1.9sigma below the average. If we eliminate this particular shot from our analysis (shot 1608), the power and energy scaling becomes closer to quadratic. Namely, we find that the dependence on the peak load current of the peak x-ray radiated power and the total x-ray radiated energy become P_{r} proportional, variantI;{1.71+/-0.10} and E_{r} proportional, variantI;{2.01+/-0.21} , respectively. In this case, the power scaling exponent is different by more than 2sigma from the previously published results of Stygar Larger data sets are likely required to resolve this uncertainty and eliminate the sensitivity to statistical fluctuations in any future studies of this type. Nevertheless, with or without the inclusion of shot 1608, our results with tau_{imp}=80ns fall short of an I2 scaling of the peak x-ray radiated power by at least 2sigma . In either case, the results of our study are consistent with the heuristic wire ablation model proposed by Stygar (P_{r} proportional, variantI;{1.5}) . We also derive an empirical predictive relation that connects the power scaling exponent with certain array parameters." @default.
- W2076173645 created "2016-06-24" @default.
- W2076173645 creator A5012899414 @default.
- W2076173645 creator A5025691590 @default.
- W2076173645 creator A5029459037 @default.
- W2076173645 creator A5037054150 @default.
- W2076173645 creator A5044806325 @default.
- W2076173645 creator A5054307214 @default.
- W2076173645 creator A5064217739 @default.
- W2076173645 creator A5069182443 @default.
- W2076173645 creator A5071356090 @default.
- W2076173645 creator A5075016880 @default.
- W2076173645 creator A5079680249 @default.
- W2076173645 date "2009-01-29" @default.
- W2076173645 modified "2023-09-26" @default.
- W2076173645 title "X-ray emission current scaling experiments for compact single-tungsten-wire arrays at<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mn>80</mml:mn><mml:mtext>−</mml:mtext><mml:mtext>nanosecond</mml:mtext></mml:mrow></mml:math>implosion times" @default.
- W2076173645 cites W1966001982 @default.
- W2076173645 cites W1968717836 @default.
- W2076173645 cites W1970151973 @default.
- W2076173645 cites W1970877868 @default.
- W2076173645 cites W1974297121 @default.
- W2076173645 cites W1978237504 @default.
- W2076173645 cites W1987533713 @default.
- W2076173645 cites W1987951969 @default.
- W2076173645 cites W2003801486 @default.
- W2076173645 cites W2017258947 @default.
- W2076173645 cites W2025145300 @default.
- W2076173645 cites W2026636435 @default.
- W2076173645 cites W2034912859 @default.
- W2076173645 cites W2039008529 @default.
- W2076173645 cites W2043802438 @default.
- W2076173645 cites W2047480460 @default.
- W2076173645 cites W2049304427 @default.
- W2076173645 cites W2049742101 @default.
- W2076173645 cites W2063266445 @default.
- W2076173645 cites W2064100668 @default.
- W2076173645 cites W2069423365 @default.
- W2076173645 cites W2072662008 @default.
- W2076173645 cites W2083670371 @default.
- W2076173645 cites W2086872307 @default.
- W2076173645 cites W2088101042 @default.
- W2076173645 cites W2098129013 @default.
- W2076173645 cites W2105109500 @default.
- W2076173645 cites W2116638929 @default.
- W2076173645 cites W2123335615 @default.
- W2076173645 cites W2171403535 @default.
- W2076173645 cites W2205884622 @default.
- W2076173645 doi "https://doi.org/10.1103/physreve.79.016412" @default.
- W2076173645 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/19257153" @default.
- W2076173645 hasPublicationYear "2009" @default.
- W2076173645 type Work @default.
- W2076173645 sameAs 2076173645 @default.
- W2076173645 citedByCount "25" @default.
- W2076173645 countsByYear W20761736452012 @default.
- W2076173645 countsByYear W20761736452013 @default.
- W2076173645 countsByYear W20761736452014 @default.
- W2076173645 countsByYear W20761736452015 @default.
- W2076173645 countsByYear W20761736452016 @default.
- W2076173645 countsByYear W20761736452017 @default.
- W2076173645 countsByYear W20761736452020 @default.
- W2076173645 countsByYear W20761736452021 @default.
- W2076173645 countsByYear W20761736452022 @default.
- W2076173645 crossrefType "journal-article" @default.
- W2076173645 hasAuthorship W2076173645A5012899414 @default.
- W2076173645 hasAuthorship W2076173645A5025691590 @default.
- W2076173645 hasAuthorship W2076173645A5029459037 @default.
- W2076173645 hasAuthorship W2076173645A5037054150 @default.
- W2076173645 hasAuthorship W2076173645A5044806325 @default.
- W2076173645 hasAuthorship W2076173645A5054307214 @default.
- W2076173645 hasAuthorship W2076173645A5064217739 @default.
- W2076173645 hasAuthorship W2076173645A5069182443 @default.
- W2076173645 hasAuthorship W2076173645A5071356090 @default.
- W2076173645 hasAuthorship W2076173645A5075016880 @default.
- W2076173645 hasAuthorship W2076173645A5079680249 @default.
- W2076173645 hasConcept C120665830 @default.
- W2076173645 hasConcept C121332964 @default.
- W2076173645 hasConcept C14480152 @default.
- W2076173645 hasConcept C148043351 @default.
- W2076173645 hasConcept C184779094 @default.
- W2076173645 hasConcept C185544564 @default.
- W2076173645 hasConcept C191897082 @default.
- W2076173645 hasConcept C192562407 @default.
- W2076173645 hasConcept C196046385 @default.
- W2076173645 hasConcept C2524010 @default.
- W2076173645 hasConcept C2779328170 @default.
- W2076173645 hasConcept C2779824264 @default.
- W2076173645 hasConcept C33923547 @default.
- W2076173645 hasConcept C52551758 @default.
- W2076173645 hasConcept C542268612 @default.
- W2076173645 hasConcept C82706917 @default.
- W2076173645 hasConcept C97355855 @default.
- W2076173645 hasConcept C99844830 @default.
- W2076173645 hasConceptScore W2076173645C120665830 @default.
- W2076173645 hasConceptScore W2076173645C121332964 @default.
- W2076173645 hasConceptScore W2076173645C14480152 @default.
- W2076173645 hasConceptScore W2076173645C148043351 @default.
- W2076173645 hasConceptScore W2076173645C184779094 @default.
- W2076173645 hasConceptScore W2076173645C185544564 @default.
- W2076173645 hasConceptScore W2076173645C191897082 @default.
- W2076173645 hasConceptScore W2076173645C192562407 @default.