Search Results - "Karamian, S.A"

Search for low-energy induced depletion of 178Hfm2 at the SPring-8 synchrotron by Carroll, J.J., Karamian, S.A., Propri, R., Gohlke, D., Caldwell, N., Ugorowski, P., Drummond, T., Lazich, J., Roberts, H., Helba, M., Zhong, Z., Tang, M.-T., Lee, J.-J., Liang, K.

“…Electromagnetic transitions within nuclei reflect specific aspects of nuclear structure. This is particularly true for metastable excited states, or isomers,…”
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Z dependence of the (γ, α) reaction yield by Karamian, S. A.

“…Reactions induced by photons may be used as a probe for bonds and correlations of nucleons inside a heavy target nucleus. In contrast to strongly interacting…”
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Fission lifetimes of Th nuclei measured by crystal blocking by Karamian, S.A., Forster, J.S., Andersen, J.U., Assmann, W., Broude, C., Chevallier, J., Geiger, J.S., Grüner, F., Khodyrev, V.A., Malaguti, F., Uguzzoni, A.

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Threshold and spin factors in the yield of bremsstrahlung-induced reactions by Karamian, S. A.

“…Relative yields of photon-induced reactions are systematized in a function of the threshold parameter for moderately heavy targets at the bremsstrahlung…”
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Void formation in Ge induced by high energy heavy ion irradiation by Huber, H., Assmann, W., Karamian, S.A., Mücklich, A., Prusseit, W., Gazis, E., Grötzschel, R., Kokkoris, M., Kossionidis, E., Mieskes, H.D., Vlastou, R.

“…Ge wafer irradiated at room temperature with high energetic heavy ions ranging from 165 MeV Ni to 266 MeV Au show a swelling of the bombarded region. The…”
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Calculated yield of isomer depletion due to NEEC for [sup.93m]Mo recoils by Karamian, S.A, Carroll, J.J

“…In the present work, quantitative calculations were carried out for production and depletion of the [sup.93m]Mo isomer in a relatively simple experiment using…”
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Fission time-scale in experiments and in multiple initiation model by Karamian, S. A.

“…Rate of fission for highly-excited nuclei is affected by the viscose character of the systemmotion in deformation coordinates as was reported for very heavy…”
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Production of isomers in compound and transfer reactions with 4He ions by Karamian, S.A., Carroll, J.J., Aksenov, N.V., Albin, Y.A., Bozhikov, G.A., Dmitriev, S.N., Starodub, G.Y., Vostokin, G.K.

“…A well-known island of nuclear isomerism appears near A=175–180 due to the deformation alignment of single-particle orbits at high angular momentum. This…”
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Production of isotopes and isomers with irradiation of Z = 47 47-50 targets by 23-MeV bremsstrahlung by Karamian, S.A, Carroll, J.J, Aksenov, N.V, Albin, Yu. A, Belov, A.G, Bozhikov, G.A, Dmitriev, S.N, Starodub, G. Ya

“…The irradiations of Ag to Sn targets by bremsstrahlung generated with 23-MeV electron beams are performed at the MT-25 microtron. Gamma spectra of the induced…”
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Search for low-energy induced depletion of Hf-178(m2) at the SPring-8 Synchrotron by Carroll, J.J., Zhong, Z., Karamian, S.A., Propri, R., Gohike, D., Caldwell, N., Ugorowski, P., Drummond, T., Lazich, J., Roberts, H., , Helba, M., , Tang, M. T., Lee, J. J., Lian, K.

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Comparative Analysis of the {sup 178m}{sup 2}Hf Yield at Reactions with Different Projectiles by Karamian, S.A.

“…The long-lived high-spin {sup 178m}{sup 2}Hf K isomer can be produced in nuclear reactions with different projectiles. The reaction yields and cross sections…”
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Spallation and fission products in the (p+ 179Hf) and (p+ natHf) reactions by Karamian, S.A., Ur, C.A., Adam, J., Kalinnikov, V.G., Lebedev, N.A., Vostokin, G.K., Collins, C.B., Popescu, I.I.

“…Production of Hf and Lu high-spin isomers has been experimentally studied in spallation reactions induced by intermediate energy protons. Targets of enriched…”
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Production of the 178m2Hf isomer using a 4.5-GeV electron accelerator by Karamian, S.A., Carroll, J.J., Adam, J., Demekhina, N.A.

“…High-productivity methods are required for the accumulation of long-lived isomers in amounts that are sufficient for the creation of experimental targets. A…”
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Design and characterization of a compact multi-detector array for studies of induced gamma emission: Spontaneous decay of 178m2Hf as a test case by Ugorowski, P., Propri, R., Karamian, S.A., Gohlke, D., Lazich, J., Caldwell, N., Chakrawarthy, R.S., Helba, M., Roberts, H., Carroll, J.J.

“…Reports that incident photons near 10 keV can induce the emission of gamma rays with concomitant energy release from the 31-year isomer of 178Hf challenge…”
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Production of long-lived hafnium isomers in reactor irradiations by Karamian, S.A., Carroll, J.J., Adam, J., Kulagin, E.N., Shabalin, E.P.

“…Experiments on production of long-lived Hf 178 m 2 isomer in reactor irradiations are described. Properties of this nuclide are promising for its potential…”
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Yield of radionuclides and isomers produced in the fragmentation of natW and 186W (97%) targets with protons at 630, 420 and 270MeV by Karamian, S.A, Adam, J, Chaloun, P, Filossofov, D.V, Henzl, V, Henzlova, D, Kalinnikov, V.G, Korolev, N.A, Lebedev, N.A, Novgorodov, A.F, Collins, C.B, Popescu, I.I, Ur, C.A

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Yield of radionuclides and isomers produced in the fragmentation of natW and 186W (97%) targets with protons at 630, 420 and 270 MeV by Karamian, S.A, Adam, J, Chaloun, P, Filossofov, D.V, Henzl, V, Henzlova, D, Kalinnikov, V.G, Korolev, N.A, Lebedev, N.A, Novgorodov, A.F, Collins, C.B, Popescu, I.I, Ur, C.A

“…Yields and cross-sections of the radioactive nuclides produced after the irradiation of natural composition W and enriched 186W targets at the Dubna…”
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Accumulation of the 178m2Hf isomeric nuclei through spallation with intermediate-energy protons of tantalum and rhenium targets by Karamian, S.A, Adam, J, Filossofov, D.V, Henzlova, D, Henzl, V, Kalinnikov, V.G, Lebedev, N.A, Novgorodov, A.F, Collins, C.B, Popescu, I.I, Ur, C.A

“…The productivity of the spallation reactions at proton energies of 100–660 MeV for accumulation of the radioactive isotopes and isomers has been studied…”
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Random flux redistribution observed for α-particles transmitted through Si, Ni and Pt crystals by Karamian, S.A, Grüner, F, Assmann, W, Günther, W, Ponomarenko, V.A, Schmidt, B, Tretyakova, S.P

“…Flux redistribution with formation of channeling peaks, observed earlier for protons and heavy-ions in Si, has now been studied for α-particles transmitted…”
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Blocking- and channeling-ERDA with heavy ions by Nolte, H., Assmann, W., Huber, H., Karamian, S.A., Mieskes, H.D.

“…A 2-dimensional position sensitive ionization chamber was used for structural analysis of single crystalline materials by blocking- and channeling-ERDA…”
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