| 1. |
- Borge, M. J. G., et al.
(author)
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Beta-Delayed Proton and Alpha Emission in the Decay of Ne-17
- 1988
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In: Nuclear Physics A. - : Elsevier BV. - 0375-9474. ; 490:2, s. 287-306
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Journal article (peer-reviewed)abstract
- The beta-delayed proton and alpha spectra from 17Ne have been studied with Si-detectors. The Gamow-Teller strength in the decay of 17Ne has been extracted and compared with a two-particle-one-hole shell-model calculation. The experimental strength is quenched by a factor of 0.82 with respect to the calculated one. Furthermore, the decay scheme has been improved and is discussed in some detail. The proton emitting levels in 17F are very broad and the line shapes are strongly influenced by phase-space effects. Interference between peaks corresponding to the same intermediate spin is a prominent feature emerging clearly with the good resolution and statistics of the present work.
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| 2. |
- Bjornstad, T., et al.
(author)
-
The Doubly Closed Shell Nucleus Sn-132(50)82
- 1986
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In: Nuclear Physics A. - : Elsevier BV. - 0375-9474. ; 453:3, s. 463-485
-
Journal article (peer-reviewed)abstract
- The structure of excited states in 132Sn, fed in the β-decay of 132In, has been investigated. Absolute intensities were deduced from γ-singles measurements. From multi-spectrum analysis of γ-lines the half-life of 132In was determined to be 186 ± 22 ms. A level scheme based on γγ and βγ coincidences is presented. The conversion electron spectrum has been studied and internal conversion coefficients deduced for two low-energy transitions. The total decay energy of 132In was determined, from γ-gated β-spectra, to be Qβ = 13.6 ± 0.4 MeV. A lower limit of 6.968 MeV for the neutron separation energy in 132Sn was deduced from the β-delayed neutron spectrum. The experimental results on the level structure of the doubly closed shell nucleus 132Sn show that the shell model is applicable even far from the valley of stability.
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| 3. |
- Mattsson, J, et al.
(author)
-
Intratumoral distribution of microspheres.
- 1986
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In: Anticancer research. - 0250-7005. ; 6:4, s. 563-6
-
Journal article (peer-reviewed)abstract
- Fifteen mu carbonized microspheres injected in two transplantable rat tumors, a hepatoma transplanted to the dorsum of one hindpaw and an adenocarcinoma transplanted into the liver, were found to be unevenly distributed and often in aggregates that seemed to fill intratumoral vessels. This finding can partly explain the increased vascular resistance in tumors after microsphere injection and makes the technique with repeated injections of microspheres disputable.
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