Mass measurements along the rp-process path

Brenner, D. S.; Tomlin, B. E.; Barton, C. E.; Zamfir, N. V.; Gill, R. L.; Cata-Danil, G.; Kru¨cken, R.; Beausang, C. W.; Casten, R. F.; Cederkall, J.; Liu, Benyuan; Caprio, M. A.; Novak, J. R.; Cooper, J. R.; Wang, Z.
July 2000
AIP Conference Proceedings;2000, Vol. 529 Issue 1, p315
Academic Journal
The path and termination point for the rp-process above [sup 56]Ni is uncertain due to a lack of knowledge of nuclear properties, especially masses, near the proton drip line. To address this need we have begun a program to measure masses of nuclei along the rp-process pathway in the A∼60–80 region using β-γ coincidence spectroscopy. Results for [sup 71]Se are presented and a preliminary experiment for [sup 72]Br is described. © 2000 American Institute of Physics.


Related Articles

  • Spallation neutron source beam loss monitor system. Gassner, D.; Witkover, R.; Cameron, P.; Power, J. // AIP Conference Proceedings;2000, Vol. 546 Issue 1, p392 

    The Spallation Neutron Source facility to be built at ORNL is designed to accumulate 2×10[sup 14] protons at 1.0 GeV and deliver them to the experimental target in one bunch at 60 Hz. To achieve this goal and protect the machine from excessive radiation activation, an uncontrolled loss...

  • Atomic oddity decays like no other.  // New Scientist;1/21/2006, Vol. 189 Issue 2535, p16 

    This article reports that a cigar-shaped atom has demonstrated a novel kind of radioactive decay by spitting out two free protons at the same time. Radioactive decay normally involves the emission of one of three types of particle: a helium nucleus consisting of two protons and two neutrons, an...

  • Waiting Points in Nova and X-ray burst Nucleosynthesis. Sunayama, Tomomi; Smith, Michael S.; Lingerfelt, Eric; Buckner, Kim; Hix, W. Raphael; Nesaraja, Caroline D. // AIP Conference Proceedings;5/21/2008, Vol. 1016 Issue 1, p415 

    In nova and X-ray burst nucleosynthesis, waiting points are nuclei in the reaction path which delay the nuclear flow towards heavier nuclei, typically because of a weak proton capture reaction and a long β+ lifetime. Waiting points can influence the energy generation and final abundances...

  • rp-process weak-interaction mediated rates of waiting-point nuclei. Nabi, Jameel-Un // Astrophysics & Space Science;Jun2012, Vol. 339 Issue 2, p305 

    Electron capture and positron decay rates are calculated for neutron-deficient Kr and Sr waiting point nuclei in stellar matter. The calculation is performed within the framework of pn-QRPA model for rp-process conditions. Fine tuning of particle-particle, particle-hole interaction parameters...

  • Probing single-particle structures beyond the proton drip line. Page, R. D.; Bianco, L.; Darby, I. G.; Joss, D. T.; Grahn, T.; Herzberg, R.-D.; Pakarinen, J.; Thomson, J.; Uusitalo, J.; Eeckhaudt, S.; Greenlees, P. T.; Jones, P. M.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Leppänen, A.-P.; Nyman, M.; Rahkila, P.; Sarén, J. // AIP Conference Proceedings;11/30/2007, Vol. 961 Issue 1, p137 

    Single-particle energies have been investigated in the closed neutron shell proton emitter 155Ta. The 155Ta nuclei were populated through the α decay of 159Re, which has been observed for the first time. The 159Re nuclei were produced in reactions of 300 MeV 58Ni ions with an isotopically...

  • Measurement of the (p,γ) Cross Sections of 46Ti, 64Zn, 114Sn and 116Sn at Astrophysically Relevant Energies. Kodikara, Ravin S.; Famiano, Michael A.; Giacherio, Brenna M.; Subramanian, V. G.; Kayani, Asghar // AIP Conference Proceedings;3/15/2009, Vol. 1099 Issue 1, p719 

    The total cross sections for the 116Sn(p,γ)117Sb, 114Sn(p,γ)115Sb, 64Zn(p,γ)65Ga, and 46Ti(p,γ)47V reactions have been measured using an activation technique for protons with center-of-mass energies between about 1 and 4 MeV. Radiative proton captures on 116Sn and 64Zn are compared...

  • Nuclear Data Evaluations for JENDL High-Energy File. Watanabe, Y.; Fukahori, T.; Kosako, K.; Shigyo, N.; Murata, T.; Yamano, N.; Hino, T.; Maki, K.; Nakashima, H.; Odano, N.; Chiba, S. // AIP Conference Proceedings;2005, Vol. 769 Issue 1, p326 

    An overview is presented of recent nuclear data evaluations performed for the JENDL high-energy (JENDL-HE) file, in which neutron and proton cross sections for energies up to 3 GeV are included for the whole 132 nuclides. The current version of the JENDL-HE file consists of neutron total cross...

  • Experimental and Calculation Study of Absolute Efficiency of γ-Ray Detection with the Coaxial HPGe-Detector GC 5019 at Eγ=0.24–18.565 MeV. Generalov, L. N.; Lebedev, B. L.; Livke, A. V.; Modenov, A. B.; Chirkin, V. A. // AIP Conference Proceedings;2005, Vol. 769 Issue 1, p754 

    In the range Eγ=0.24–18.565 MeV investigations were carried out of the absolute efficiency of γ-ray detection with the HPGe-detector GC 5019 (CANBERRA). The investigations were performed in connection with measurements of proton radiation capture reaction cross sections on the...

  • Low-Energy Proton Capture Reactions. Lipoglavsek, M.; Cvetinovic, A.; Gajevic, J.; Likar, A.; Petrovic, T. // AIP Conference Proceedings;2014, Vol. 1595, p133 

    An overview of experimental problems in measuring the cross sections for (p,?) and (p,n) reactions at low energies is given with a specific emphasis on electron screening in metallic targets. Thick target ?-ray and neutron yields are compared for Ni and NiO targets, V and VO2 targets and Mn and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics