Zobrazeno 1 - 10
of 17
pro vyhledávání: '"H. P. Hülskötter"'
Autor:
Ali Belkacem, H. E. Wegner, H. P. Hülskötter, Peter Thieberger, G.F. Krebs, W. E. Meyerhof, M. A. McMahan, Jose Raul Gonzalez Alonso, Harvey Gould, M. J. Rhoades-Brown, E. Dillard, Bruce Rude, D. W. Spooner, B. Feinberg, K. Street, L. Blumenfeld, N. Guardala, J. Schweppe
Publikováno v:
Physical Review A. 47:2370-2373
We show that electron- and proton-impact ionization cross sections for highly stripped heavy ions can be deduced from the projectile-electron-loss cross sections determined by collisions with a ${\mathrm{H}}_{2}$ and a He target. We measure electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c44ab392c87a8c48b028a3770ae3aadf
https://doi.org/10.1103/physreva.47.2370
https://doi.org/10.1103/physreva.47.2370
Autor:
C. W. Beausang, H. P. Hülskötter, A. Belkacem, W. E. Meyerhof, A.E. Kavka, B. Kotlinski, E. C. Montenegro, J. Burde, Bruce Rude, Karsten Danzmann, E. Dillard, D. Cline, D. W. Spooner, N. Guardala, R. J. McDonald, A. O. Macchiavelli, J. D. Molitoris
Publikováno v:
Physical Review C
We have searched for three-photon decays produced in 6-MeV/nucleon U+Th, Th+Th, and U+U collisions. We see no evidence for narrow lines corresponding to the electron-positron lines seen by others: in the summed-energy region between 1.2 and 2.0 MeV,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59002b28e809ca5c6e9fb58178c638b7
https://pubmed.ncbi.nlm.nih.gov/9967694
https://pubmed.ncbi.nlm.nih.gov/9967694
Autor:
E. Dillard, H. P. Hülskötter, Jose R. Alonso, M. E. Rhoades-Brown, Bruce Rude, M. A. McMahan, G.F. Krebs, D. W. Spooner, N. Guardala, A. Belkacem, Peter Thieberger, K. Street, Harvey Gould, L. Blumenfeld, W. E. Meyerhof, J. Schweppe, H. E. Wegner, B. Feinberg
Publikováno v:
Physical review. A, Atomic, molecular, and optical physics. 44(3)
In ion-atom collisions where the projectile is ionized, target electrons act not only coherently by screening the target nucleus but they may also act incoherently by directly ejecting a projectile electron. This electron-electron interaction should
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f29d9d9242de946ed97f949163a8b8b
https://pubmed.ncbi.nlm.nih.gov/9906139
https://pubmed.ncbi.nlm.nih.gov/9906139
Publikováno v:
Physical review. A, Atomic, molecular, and optical physics. 43(11)
We examine the effect of a molecular hydrogen target, as contrasted with an atomic target, on one-electron-projectile electron loss within the framework of the plane-wave Born approximation. Two different approaches are explored: (1) the use of an ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa5a2a279d70fce50db716cc0c0d96c5
https://pubmed.ncbi.nlm.nih.gov/9904919
https://pubmed.ncbi.nlm.nih.gov/9904919
Autor:
Y. Yamazaki, H. P. Hülskötter, Joachim Burgdörfer, J. P. Gibbons, R. Deserio, M. Breinig, P L Pepmiller, T. Underwood, Ivan A. Sellin
Publikováno v:
Physical Review A. 34:4493-4496
We have measured the yield of convoy electrons produced by 2-MeV/u C projectiles incident on C foils as a function of target thickness (0.8--50 ..mu..g/cm/sup 2/) for incident charge states q/sub i/ = 4--6 and exit charge states q/sub e/ = 4--6. Norm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::767c8e2f5069f04530aab97bb4d0b4d4
https://doi.org/10.1103/physreva.34.4493
https://doi.org/10.1103/physreva.34.4493
Publikováno v:
Physical Review Letters. 63:1938-1941
Cross sections for projectile {ital K}-shell ionization were measured for 0.75--3.5-MeV/{ital N} C{sup 5+} and O{sup 7+} projectiles in collisions with H{sub 2} and He targets. The experimental results agree with plane-wave Born-approximation calcula
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a3237478a31c5979dee26c301722fe8
https://doi.org/10.1103/physrevlett.63.1938
https://doi.org/10.1103/physrevlett.63.1938
Autor:
S. B. Elston, M. Breinig, Y. Yamazaki, Kelbch C, H. Schmidt-Bocking, Ivan A. Sellin, Joachim Burgdörfer, H. P. Hülskötter, Lepera Ce, R. Deserio
Publikováno v:
Physical Review A. 33:2156-2159
We have measured the yield of convoy electrons in coincidence with the emergent ionic charge state q/sub e/ for heavy ions in equilibrium-thickness C foils. The data extend the range of previous measurements to include higher-Z projectiles and lower
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::642737fc696a4cb0b23c24b0fdcbe58c
https://doi.org/10.1103/physreva.33.2156
https://doi.org/10.1103/physreva.33.2156
Autor:
L. Liljeby, Joachim Burgdörfer, J. P. Gibbons, R. T. Short, H. P. Hülskötter, M. Breinig, R. Deserio, C. E. Gonzalez Lepera, S. B. Elston, C. R. Vane
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :316-320
We present the first measurements of the angular distribution of recoil ions near 90 ° with respect to the incident projectile direction. Beams of 22.5 and 33 MeV chlorine ions (incident charge states q = 4,5,8) have been used as “hammer” beams
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d836d5bb16c15876230749aca6431f05
https://doi.org/10.1016/0168-583x(87)90651-3
https://doi.org/10.1016/0168-583x(87)90651-3
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :147-152
The dependence of the yield of convoy electrons emitted near the forward direction in collisions involving fast ions and thin solid targets on the emergent projectile charge state is presented and described in terms of primary electron loss events in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac27d0fc374f8d9b1d0b639c67407ddc
https://doi.org/10.1016/0168-583x(87)90611-2
https://doi.org/10.1016/0168-583x(87)90611-2
Autor:
M. Breinig, C. Biedermann, H. P. Hülskötter, O. Heil, R. Deserio, C. R. Vane, S. B. Elston, Carlos E Gonzalez-Lepera, Ivan A. Sellin, Hermann Rothard, J. P. Gibbons
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :53-55
The production of free convoy electrons, emitted with velocities near the ion velocity in ion-solid collisions, is not well understood. Experiments concerning thickness-dependent yields have suggested the dominant mechanism for convoy production is e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bcd83429d0cd29817f0e561e7a9bbd4
https://doi.org/10.1016/0168-583x(89)90922-1
https://doi.org/10.1016/0168-583x(89)90922-1