Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Kashiv, Y."'
Autor:
Sahoo, R. N., Paul, M., Kashiv, Y., Tessler, M., Friedman, M., Halfon, S., Kreisel, A., Shor, A., Weissman, L.
Publikováno v:
Phys. Rev. C 109, 025808 (2024)
Stellar abundances of cerium are of high current interest based both on observations and theoretical models, especially with regard to the neutron--magic $^{140}$Ce isotope. A large discrepancy of $s-$process stellar models relative to cerium abundan
Externí odkaz:
http://arxiv.org/abs/2406.17646
Autor:
Tessler, M., Paul, M., Halfon, S., Kashiv, Y., Kijel, D., Kreisel, A., Shor, A., Weissman, L.
Publikováno v:
Phys. Rev. C 105, 035801 (2022)
The stable gallium isotopes, $^{69,71}$Ga, are mostly produced by the weak slow ($s$) process in massive stars. We report here on measurements of astrophysically-relevant neutron capture cross sections of the $^{69,71}$Ga$(n,\gamma)$ reactions. The e
Externí odkaz:
http://arxiv.org/abs/2211.16774
Autor:
Tessler, M., Paul, M., Halfon, S., Meyer, B. S., Pardo, R., Purtschert, R., Rehm, K. E., Scott, R., Weigand, M., Weissman, L., Almaraz-Calderon, S., Avila, M. L., Baggenstos, D., Collon, P., Hazenshprung, N., Kashiv, Y., Kijel, D., Kreisel, A., Reifarth, R., Santiago-Gonzalez, D., Shor, A., Silverman, I., Talwar, R., Veltum, D., Vondrasek, R.
The $^{36}$Ar$(n,\gamma)^{37}$Ar ($t_{1/2}$ = 35 d) and $^{38}$Ar$(n,\gamma)^{39}$Ar (269 y) reactions were studied for the first time with a quasi-Maxwellian ($kT \sim 47$ keV) neutron flux for Maxwellian Average Cross Section (MACS) measurements at
Externí odkaz:
http://arxiv.org/abs/1808.08556
Autor:
Callahan, Lauren K., Collon, P., Paul, M., Avila, M.L., Back, B.B., Bailey, T.L., Clark, A.M., Dickerson, C., Greene, J.P., Jayatissa, H., Jiang, C.L., Kashiv, Y., Nelson, A.D., McLain, J., Pardo, R.C., Potterveld, D., Rehm, K.E., Sahoo, R.N., Scott, R., Seweryniak, D., Tolstukhin, I., Vondrasek, R.
Publikováno v:
In Nuclear Inst. and Methods in Physics Research, B 1 December 2022 532:7-12
Autor:
Sahoo R. N., Paul M., Köster U., Scott R., Tessler M., Zylstra A., Avila M. L., Dickerson C., Jayatissa H., Kohen M.S., McLain J., Pardo R.C., Rehm K. E., Tolstukhin I., Vondrasek R., Bailey T., Callahan L., Clark A., Collon P., Kashiv Y., Nelson A.
Publikováno v:
EPJ Web of Conferences, Vol 284, p 01037 (2023)
The cross-section of the thermal neutron capture 41Ar(n,γ)42Ar(t1/2=32.9 y) reaction was measured by irradiating a 40Ar sample at the high-flux reactor of Institut Laue-Langevin (ILL) Grenoble, France. The signature of the two-neutron capture has be
Externí odkaz:
https://doaj.org/article/a623f2e7c5074387ac12709928f6edc9
Autor:
Paul M., Sahoo R. N., Tessler M., Jeet J., Velsko C., Zylstra A., Avila M., Dickerson C., Fougères C., Jayatissa H., Pardo R. C., Rehm K. E., Scott R., Tolstukhin I., Vondrasek R., Bailey T., Callahan L., Clark A. M., Collon P., Kashiv Y., Nelson A., Köster U., Hoffmann H. F. R., Pichotta M., Zuber K., Döring T., Schwengner R.
Publikováno v:
EPJ Web of Conferences, Vol 279, p 13004 (2023)
The thermodynamical conditions and the neutron density produced in a laser-induced implosion of a deuterium-tritium (DT) filled capsule at the National Ignition Facility (NIF) are the closest laboratory analog of stellar conditions. We plan to invest
Externí odkaz:
https://doaj.org/article/e041bed60cd8418ea791b3e1c9f001c3
Negative results obtained in AMS searches by Dellinger et al. on mostly unrefined ores have led them to conclude that the very heavy long-lived species found in chemically processed samples with ICP-SFMS by Marinov et al. are artifacts. We argue that
Externí odkaz:
http://arxiv.org/abs/1110.0317
Autor:
Kinoshita, N., Paul, M., Kashiv, Y., Collon, P., Deibel, C. M., DiGiovine, B., Greene, J. P., Henderson, D. J., Jiang, C. L., Marley, S. T., Nakanishi, T., Pardo, R. C., Rehm, K. E., Robertson, D., Scott, R., Schmitt, C., Tang, X. D., Vondrasek, R., Yokoyama, A.
Publikováno v:
Science 335, 1614 (2012)
The extinct p-process nuclide 146Sm serves as an astrophysical and geochemical chronometer through measurements of isotopic anomalies of its alpha-decay daughter 142Nd. Based on analyses of 146Sm/147Sm alpha-activity and atom ratios, we determined th
Externí odkaz:
http://arxiv.org/abs/1109.4805
Autor:
Marinov, A., Pape, A., Kolb, D., Halicz, L., Segal, I., Tepliakov, N., Kashiv, Y., Brandt, R.
Based on the observation of the long-lived isotopes 261Rg and 265Rg (Z = 111, t(1/2) >= 10^(8) y) in natural Au, an experiment was performed to enrich Rg in 99.999% Au. 16 mg of Au were heated in vacuum for two weeks at a temperature of 1127 deg. C (
Externí odkaz:
http://arxiv.org/abs/1011.6510
Autor:
Marinov, A., Rodushkin, I., Kolb, D., Pape, A., Kashiv, Y., Brandt, R., Gentry, R. V., Miller, H. W.
Publikováno v:
Int.J.Mod.Phys.E19:131-140,2010
Evidence for the existence of a superheavy nucleus with atomic mass number A=292 and abundance (1-10)x10^(-12) relative to 232Th has been found in a study of natural Th using inductively coupled plasma-sector field mass spectrometry. The measured mas
Externí odkaz:
http://arxiv.org/abs/0804.3869