Zobrazeno 1 - 10
of 44
pro vyhledávání: '"J. Bromander"'
Publikováno v:
Physica Scripta. 12:75-79
The lifetimes for a number of levels in neutral and ionized calcium have been determined by the beam-foil technique. The effects of cascades were analyzed and corrected for. The experimental lifetimes mostly agree with theoretical calculations.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d530d4ac13a1186af4b4c95c522000f7
https://doi.org/10.1088/0031-8949/12/1-2/008
https://doi.org/10.1088/0031-8949/12/1-2/008
Publikováno v:
Physica Scripta. 8:285-291
We report a beam-foil investigation of chlorine, performed with a 5.5 MV Van de Graaff accelerator. Transitions belonging to Cl IV - Cl X were studied in the region 400-6 000 A. Lifetimes are presented for several excited levels in Cl IV - Cl IX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1395e80b0914ab9b16aee6d09486b57
https://doi.org/10.1088/0031-8949/8/6/011
https://doi.org/10.1088/0031-8949/8/6/011
Publikováno v:
Le Journal de Physique Colloques. 40:C1-10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d549540a986b23ecb7747069b8b1f580
https://doi.org/10.1051/jphyscol:1979103
https://doi.org/10.1051/jphyscol:1979103
Publikováno v:
Le Journal de Physique Colloques. 40:C1-259
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c42ac46a4669cd170874737dec68eb5
https://doi.org/10.1051/jphyscol:1979154
https://doi.org/10.1051/jphyscol:1979154
Publikováno v:
Nuclear Instruments and Methods. 90:55-58
The beam-foil technique has been used to record spectra and measure mean lives of excited levels in neutral and ionized Na, Mg, Al, Si and K. Emphasis has been put on some Na I and Mg I isoelectronic sequences. The interpretation of a complex cascade
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbcf52bac3ca40cfa3f1720dbcc0a8e0
https://doi.org/10.1016/0029-554x(70)90649-x
https://doi.org/10.1016/0029-554x(70)90649-x
Publikováno v:
Physica Scripta. 3:125-132
We have measured radiative decay times in Si II, Si III, and Si IV in the wavelength region 700-6 000 ? using the beam-foil technique. The lifetimes and transition probabilities have been evaluated by alternative methods of curve-fitting and cascade
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3bd0b317fb7dcb281019bb45fee67d9
https://doi.org/10.1088/0031-8949/3/3-4/007
https://doi.org/10.1088/0031-8949/3/3-4/007
Publikováno v:
Physica Scripta. 3:63-67
We give a summary of the available experimental information about doubly-excited terms in the Li I isoelectronic sequence and discuss some new classifications and lifetime measurements. Some new classifications in Be I are also suggested and we give
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73e246fa0e32eaea970f1b126ced374c
https://doi.org/10.1088/0031-8949/3/2/003
https://doi.org/10.1088/0031-8949/3/2/003
Publikováno v:
Nuclear Instruments and Methods. 90:269-274
Possible experiments to study the beam-foil interaction mechanism are discussed. Shell effects are observed when relative intensities of beam spectra are compared with charge state fractions as a function of beam energy. We find only small changes in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::411194d4930297c1a1e7b3c412864207
https://doi.org/10.1016/0029-554x(70)90680-4
https://doi.org/10.1016/0029-554x(70)90680-4
Publikováno v:
Physica Scripta. 2:216-220
The contributions of cascades to multi-exponential decay curves are analysed. We define the quantitative cascade contribution to an exponential decay as the replenishment ratio, which is the ratio of the cascade repopulation rate to the decay depopul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c1e74d28d1474bc841e2cb7ff756d94
https://doi.org/10.1088/0031-8949/2/4-5/015
https://doi.org/10.1088/0031-8949/2/4-5/015
Publikováno v:
Solar Physics. 9:432-438
We present new laboratory data on the multiplets 2s21S -2s2p3P, 2s22p2P - 2s2p24P, and 2s22p23P - 2s2p35S in nitrogen, oxygen and fluorine, and discuss theZ-dependence of their wave-numbers. These multiplets are very faint in laboratory light sources
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d861143f0e0f0b388568aca82f37c62f
https://doi.org/10.1007/bf02391667
https://doi.org/10.1007/bf02391667