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Nuovo Cimento. A; v. 17(1); p. 66-72
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[en] Abstract only
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Armbruster, P. (Institut Max von Laue - Paul Langevin (ILL), 38 - Grenoble (France)); Barber, R.C. (Winnipeg Univ., MB (Canada). Dept. of Physics); Cohen, E.R. (Rockwell International Corp., Thousand Oaks, CA (United States). Science Center); Institut Max von Laue - Paul Langevin (ILL), 38 - Grenoble (France); Winnipeg Univ., MB (Canada). Dept. of Physics; Rockwell International Corp., Thousand Oaks, CA (United States). Science Center; 129 p; 1990; (ptL) p. 11; 8. International conference on atomic masses and fundamental constants (AMCO-8); Jerusalem (Israel); 9-14 Sep 1990
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[en] The 41-cm double-focusing mass spectrometer at the University of Minnesota has been used to measure the atomic masses of 152Sm and 154Sm and the isotopic mass differences of most Sm and Gd isotopes. Through the use of a new generalized error signal technique, measurements on the narrow doublets of Sm and Gd chlorides gave improved mass differences over previous work in this mass region. Where intense peaks were available, the results are consistent with errors of 0.4 to 1.0 μu. The conventional wide doublet technique was used to measured Sm-hydrocarbon doublets, yielding the masses of 152Sm and 154Sm with errors of less than 4 μu. These new mass data, when combined with other mass measurements and reaction data of comparable accuracy, are used in a least-squares mass adjustment in the range of 141 to 160 u
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Phys. Rev., C; v. 12(3); p. 1054-1063
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[en] In order to test CPT invariance theorem, PS189 aims at checking the equality of proton and antiproton masses via the measurement of the ratio of H- and anti p masses using a radio-frequency mass spectrometer. Recent progress, including a resolving power of 6x105, is presented. (orig.)
Source
2. biennial conference on low-energy antiproton physics (LEAP-2); Courmayeur (Italy); 14-19 Sep 1992
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Journal Article
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Conference
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ANTIBARYONS, ANTIMATTER, ANTINUCLEI, ANTINUCLEON BEAMS, ANTINUCLEONS, ANTIPARTICLE BEAMS, ANTIPARTICLES, BARYONS, BEAMS, CATIONS, CHARGED PARTICLES, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, HADRONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, IONS, MATTER, MEASURING INSTRUMENTS, MEV RANGE, NUCLEI, NUCLEONS, PARTICLE PROPERTIES, PROTONS, RESOLUTION, SPECTRA, SPECTROMETERS, SPECTROSCOPY
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[en] Achemes of magnetron, inverse-magnetron and magneto-discharge mass-spectrometers the sensitivity of which is 103-104 times higher than in existing devices are analysed. Current increase is achieved by using converting, cylindric beams between two coaxial cylinders for analysis. Theoretically considered are conditions for cutting-off the effect of inhomogeneity of the magnetic field that affect the resolution value in inverse-magnetron mass-spectrometers, as well as the distribution of charge density and electric field in magnetic discharge mass spectrometrs. The maximum application of high-current mass-spectrometers can be found in vacuum technology and as portable gas analyzers
Original Title
Osnovnye printsipy sil'notochnoj mass-spektrometrii
Source
AN Ukrainskoj SSR, Kharkov. Fiziko-Tekhnicheskij Inst; Voprosy atomnoj nauki i tekhniki; no. 3(21); p. 64-69; 1982; p. 64-69; 3 refs.; 4 figs.
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Miscellaneous
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[en] The properties of the error of the nuclear masses calculated from the transverse mass relations are analysed. The work assumes that the calculated errors of the nuclei whose masses are known experimentally behave as a sample selected randomly from a normal population having a zero mean and a standard deviation sigma. It is found that the errors of the calculated masses of nuclei far from the line of beta-stability behave as c1dsup(3/2) where c1 is a constant and d is the distance of the nucleus from the line of beta-stability. It is shown also that the errors related to the calculated mass differences behave as c2dsup(1/2) where c2 is another constant. (orig.)
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Journal Article
Journal
Zeitschrift fuer Physik. A, Atoms and Nuclei; ISSN 0340-2193;
; v. 310(1/2); p. 107-112

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[en] Exotic strange multibaryon states have been observed in the effective mass spectra of: Λπ±, Λπ+π−, Λp, Λpp, Λπp, ΛΛ and ΛK0 s , K0 s p, K0 s π± subsystems. The measured Λ/π+ ratio for average multiplicities from the pC reaction is equal to (5.3 ± 0.8) × 10−2, and it is approximately two times larger than the Λ/π+ ratio simulated by the FRITIOF model and than that of experimental pp reactions at the same energy. The observed wellknown resonances Σ*+ (1385) and K*± (892) from PDG are good tests of this method. The mean value of the mass for the Σ*−(1385) resonance is shifted to 1370 MeV/c 2 and the width is two times larger than the same value from PDG. Such kind of behavior for the width and invariant mass of Σ*− (1385) resonance is interpreted as an extensive contribution from stopped Ξ− → Λπ− and medium effect. There is enhancement of the production contribution for all observed hyperons. A few events were registered by hypothesis of light H 0 and heavy H 0, + dihyperons. Dihyperons were observed by weak decay channels: (Σ− p), (Λpπ−), (Λpπ0), and (K − pp).
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Available from http://link.springer.com/openurl/pdf?id=doi:10.1134/S1063779609040042; Copyright (c) 2009 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Physics of Particles and Nuclei; ISSN 1063-7796;
; v. 40(4); p. 525-557

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[en] A new scheme of the experiment on measuring the short-living nuclide atom masses, based on applying the isobar doublet method for mass scale gauging, is proposed. Results of measuring masses of Rb isotope atom with A=91-97, performed using a prism mass-spectrometer on line with the LiYaF mass-separator and synchrocyclotron with 30-80 keV error are presented
Original Title
Pretsizionnye izmereniya mass atomov izotopov Rb s A=91-97
Primary Subject
Source
39. All-union conference on nuclear spectroscopy and nuclear structure; Tashkent (USSR); 15 Apr 1989
Record Type
Journal Article
Literature Type
Conference; Numerical Data
Journal
Izvestiya Akademii Nauk SSSR, Seriya Fizicheskaya; ISSN 0367-6765;
; CODEN IANFA; v. 53(11); p. 2089-2091

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[en] The 40Ca(4He,8He)36Ca reaction has been used to provide the first observation of the nuclide 36Ca. The Q value and mass excess were found to be -57.58 +- 0.04 and -6.44 +- 0.04 MeV, respectively. The new mass completes four members of the A = 36 isobaric quintet and hence serves as a test of the isobaric multiplet mass equation
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Journal Article
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Phys. Rev., C; v. 15(6); p. 2028-2031
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[en] In the July issue, in the article, “Dynamic Range of Mass Accuracy in LTQ Orbitrap Hybrid Mass Spectrometer” by Alexander Makarov, Eduard Denisov, Oliver Lange, and Stevan Horning (Vol. 17, no. 7, pages 977–982), Figure 4 was printed in black and white, when it should have been published in color. The correct rendering of the figure, with its accompanying legend, is provided below:
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Source
Copyright (c) 2006 American Society for Mass Spectrometry; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Journal of the American Society for Mass Spectrometry; ISSN 1044-0305;
; CODEN JAMSEF; v. 17(12); p. 1758

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