Yields and recoil properties of scandium isotopes produced in the interaction of 590 MeV and 18 GeV protons with uranium

Ravn, H.L.

doi:10.1016/0022-1902(69)90002-5

Cited by 35 publications

(9 citation statements)

References 15 publications

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“…Our calculation leads to 26.4 mb. The mean value for the total cross section of scandium in uranium by GeV protons (Ep >= 11.5 GeV) has been determined from [30,31,32]: 26.7+__1.1 mb. Our work gives 25.4 mb.…”

Section: Resultsmentioning

confidence: 99%

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Deep spallation cross sections in high energy protons ? Uranium interactions

Sauvageon

1987

Z. Physik A - Atomic Nuclei

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Section: Resultsmentioning

confidence: 99%

“…This is probably not absolutely true for the heaviest of them (A > 65) where a little fission contribution may appear for neutron excess isotopes. Potassium [-29] and Scandium [30,31,32] isotopes formed in uranium by GeV protons are the main experimental results that we shall use in this mass range.…”

Section: Isotopic Distribution Of Deep Spallation Productsmentioning

confidence: 99%

Deep spallation cross sections in high energy protons ? Uranium interactions

Sauvageon

1987

Z. Physik A - Atomic Nuclei

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“…The points at masses 33 and 34 are within parentheses, because the correction for the daughter activities is not taken into account . The cross-section scale is normalized to 0,35rob for ~4K, assuming the same cross-section at the maximum of the yield distribution as that measured for Sc [13] :::I.. and for variable background due to the electrons from the decay of 25Na collected close to the detector. The data are shown in Fig.…”

Section: Delay-~imes and Cross-sectionsmentioning

confidence: 99%

“…It may still be interesting to estimate approximate cross-sections far away from stability, since it is very difficult to obtain this information from techniques other than on-line measurements. In order to obtain absolute formation cross-sections, the delaycorrected yields have to be related to cross-sections measured, for instance, by radiochemical methods [12][13][14]. The cross-sections gwen in Figs.…”

Section: Delay-~imes and Cross-sectionsmentioning

confidence: 99%

Comparative yields of alkali elements and thallium from uranium irradiated with GeV protons,3He and12C

et al. 1981

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Mass-separated ion beams of the alkali elements Na, K, and Fr, and of the element T1, were produced by bombarding a uranium target with 600MeV protons, 890MeV 3HeZ+, and 936MeV 12C4+. Isotopic production yields are reported. In the case of the 12C beam, these are thick target yields. Absolute cross-sections for the proton beam data were deduced by normalizing the delay-time corrected yield curves to measured cross-sections. For products farthest away from stability, the 3He2+ beam generally gives the highest yields.

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“…mean kinetic energies) produced in the interaction of high-energy protons with uranium and other heavy target material has been pursued in the past decade at CERN [1][2][3][4][5][6][7][8][9]. Here the isotopic yield curves of I [1], Sb [2], In [9], Rb andCs [7,8], andSc [4,5] were measured and complemented by range determinations of Sb [4] and Sc [5]. Preliminary results for ranges of iodine and bromine are given in Ref.…”

Section: Introductionmentioning

confidence: 99%

The Production of Iodine and Bromine Isotopes from Uranium at High Proton Energies

Brandt

1971

Radiochimica Acta

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The ranges of radioactive iodine and bromine isotopes produced at 0.55 GeV and 18 GeV in uranium are determined. At 0.55 GeV the ranges of all isotopes are mass-independent, indicating that at this energy iodine and bromine isotopes are fission products. At 18 GeV, the ranges of neutron-deficient products decrease by a factor of two. A step-like range-vs.-isotopic mass is observed for iodine and also to some extent for bromine. The results of the range and yield measurements are qualitatively discussed in this paper. It is suggested to decompose the observed isotopic yield curves into a fission and deep spallation component. Some more quantitative calculations are presented in the consecutive paper. ZusammenfassungDie Reichweite radioaktiver Jod-und Bromisotope, die bei der Bestrahlung von Uran mit 0,55 und 18 GeV Protonen entstehen, wird bestimmt. Diese Reichweite ist bei 0,55 GeV massenunabhängig. Daraus wird geschlossen, daß bei dieser Energie alle Brom-und Jodisotope Spaltprodukte sind. Bei 18 GeV fällt die Reichweite neutronenarmer Isotope um den Faktor 2 ab. Eine stufenförmige Reichweite-vs.-Massenbeziehung wird für Jodisotope beobachtet; das gleiche gilt angenähert auch für Bromisotope. Die Ergebnisse der Reichweiten-und Ausbeutemessungen werden in dieser Arbeit qualitativ diskutiert. Es wird dabei vorgeschlagen, die beobachtete Isotopenausbeutekurve in eine Spaltprodukt-und "Tiefspallations"-Komponente zu zerlegen. Einige mehr quantitative Berechnungen werden in der folgenden Arbeit beschrieben.

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Yields and recoil properties of scandium isotopes produced in the interaction of 590 MeV and 18 GeV protons with uranium

Cited by 35 publications

References 15 publications

Deep spallation cross sections in high energy protons ? Uranium interactions

Deep spallation cross sections in high energy protons ? Uranium interactions

Comparative yields of alkali elements and thallium from uranium irradiated with GeV protons,3He and12C

The Production of Iodine and Bromine Isotopes from Uranium at High Proton Energies

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