SAMPO80: Minicomputer program for gamma spectrum analysis with nuclide identification

Koskelo, M. J.; Aarnio, P.; Routti, J.T.

doi:10.1016/0010-4655(81)90104-1

Cited by 51 publications

(7 citation statements)

References 4 publications

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“…Detector efficiencies were obtained from a set of calibrated y-sources covering the energy range from 122 to 1,332 keV. The analysis of all pulse height spectra was performed with the set SAMPO 80 of computer codes [21,22]. The spectroscopic data entering into this calculation are shown in Table 1.…”

Section: Experimental Procedures and Resultsmentioning

confidence: 99%

Preequilibrium neutron emission in109Ag(3He,xn) and111Cd(p, xn) reactions

Marten

Schüring²,

Scobel

et al. 1985

Z Physik A

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Excitation functions of the reactions l~ xn) and mCd(p, xn) have been measured with stacked foil techniques for projectile energies E<__45 MeV and multiplicities x<__4 populating ground and spin isomeric states in 112-XIn. Preequilibrium (PE) contributions are more pronounced for the p than for the 3He entrance channel and for low multiplicities x and can be reproduced with the (geometry dependent) hybrid model. The observed isomeric cross section ratios require a reduced population for the high spin state (as compared with the expectation for equilibrated systems) whenever PE emission contributes significantly. Calculations for a full statistical model with a PE decay mode and approximate angular momentum conservation indicate PE neutron emission to be stretched in angular momentum space. For the (p, xn) reactions a more detailed coupling scheme is imperative whereas the (3He, xn) data suggest the competitive PE emission of complex particles.

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Section: Experimental Procedures and Resultsmentioning

confidence: 99%

Preequilibrium neutron emission in109Ag(3He,xn) and111Cd(p, xn) reactions

Marten

Schüring²,

Scobel

et al. 1985

Z Physik A

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“…As ion peaks from MR-TOF spectra often have non-Gaussian shapes, meanwhile asymmetric fit functions are preferred to provide higher accuracies as, e.g., reported in a recent analysis of transfermium nuclei [22]. The chosen probability density function (PDF) in the present work is a Gaussian hybrid with two exponential tails previously applied for γ-spectroscopy [34]. To provide an overview, the function definition that exists in three different intervals is shown in Eq.…”

Section: Discussionmentioning

confidence: 99%

New mass anchor points for neutron-deficient heavy nuclei from direct mass measurements of radium and actinium isotopes

et al. 2018

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The masses of the exotic isotopes 210−214 Ac and 210−214 Ra have been measured with a multireflection time-of-flight mass spectrograph. These isotopes were obtained in flight as fusionevaporation products behind the gas-filled recoil ion separator GARIS-II at RIKEN. The new direct mass measurements serve as an independent and direct benchmark for existing α-γ spectroscopy data in this mass region. Further, new mass anchor points are set for U and Np nuclei close to the N = 126 shell closure for a future benchmark of the Z = 92 sub-shell for neutron-deficient heavy isotopes. Our mass results are in general in good agreement with the previously indirectlydetermined mass values. Together with the measurement data, reasons for possible mass ambiguities from decay-data links between ground states are discussed.

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“…The raw data consists of arrival times of every ion event in 100 ps bins. The chosen model function is an asymmetric Gaussian-exponential hybrid (see [14]) function having separate exponential tails on either side of the maximum. Asymmetric peak shapes are common for TOF signals and are meanwhile treated with corresponding functions as also performed recently for transfermium nuclei [15].…”

Section: Multiple-fit Analysismentioning

confidence: 99%

Multiple-fit Analysis of Neutron-Deficient Radium and Actinium Isotopes

Rosenbusch

Ito

Schury

et al. 2021

Proceedings of 10th International Conference on Nuclear Physics at Storage Rings (STORI’17)

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The exotic isotopes 210−214 Ac and 210−214 Ra have been produced in flight via fusionevaporation reactions. Their masses have been measured with a multi-reflection time-of-flight mass spectrograph at the SHE-mass facility of RIKEN-KEK, which is located behind the gas-filled recoil ion separator GARIS-II at RIKEN. The new raw time-of-flight spectra have been analyzed using a new code enabling multiple fits of a model function to the data, which can be treated and provided to a fitting routine in different ways. The study reveals a scattering of the mass results that depends on the boundaries for the fitting process and the pre-treatment of the raw data.

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SAMPO80: Minicomputer program for gamma spectrum analysis with nuclide identification

Cited by 51 publications

References 4 publications

Preequilibrium neutron emission in109Ag(3He,xn) and111Cd(p, xn) reactions

Preequilibrium neutron emission in109Ag(3He,xn) and111Cd(p, xn) reactions

New mass anchor points for neutron-deficient heavy nuclei from direct mass measurements of radium and actinium isotopes

Multiple-fit Analysis of Neutron-Deficient Radium and Actinium Isotopes

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