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Your search keyword '"Grzywacz, Robert"' showing total 9 results
Start Over Author "Grzywacz, Robert" Topic detectors and experimental techniques
9 results on '"Grzywacz, Robert"'

1. $\beta$-decay spectroscopy with laser-polarised beams of neutron-rich potassium isotopes

Author

Piersa-Siłkowska, Monika, Madurga, Miguel, Kowalska, Magdalena, Azaryan, Nikolay, Baranowski, Mikołaj, Bissell, Mark, Chojnacki, Mateusz, Christie, James, Fijałkowska, Aleksandra, Grzywacz, Robert, Jankowski, Marcus, Korgul, Agnieszka, Lică, Razvan, Michelon, Ilaria, Mihai, Constantin, Pešek, Michael, Stryjczyk, Marek, Treczoks, Tobias, Xu, Zhengyu, Solak, Krzysztof, and Poklepa, Wiktor

Subjects
Detectors and Experimental Techniques
Published
2023

2. Neutron emission from unbound states in 135Sn

Author

Grzywacz, Robert, Korgul, A, Madurga, M, Fraile, L M, Xu, Z, Piersa-Siłkowska, M, Benito, J, Algora, A, Allmond, J M, Bardayan, D, Bielak, P, Fijałkowska, A, Gaffney, L P, Guadilla, V, Heideman, J, Henrich, C, Neupane, S, King, T T, Kitamura, N, Koszuk, Ł, García Borge, M J, Illana, A, Janas, Z, Jones, K L, Kankainen, A, Karny, K, Kawano, T, Kolos, K, Kröll, T, Lama, A, Lică, R, Llanos, M, Morales, A I, Mazzocchi, C, Mihai, C, Miernik, K, Murias, J R, Orrigo, S E A, Page, R D, Podolyák, Zs, Poklepa, W, Rasco, B C, Rajabali, M M, Rubio, B, Rudigier, M, Rykaczewski, K, Siegl, K, Singh, M, Stepaniuk, M, Stryjczyk, M, Solak, K, Sotty, C, Tengblad, O, Tresckow, M, Warr, N, Wimmer, K, DeWitte, H, and Yokoyama, R

Subjects
Detectors and Experimental Techniques
Published
2021

4. NICOLE Collaboration Status Report

Author

Nikolov Jovana, University of Novi Sad Serbia, Ohtsubo Takahashi, University of Niigata Japan, Grzywacz Robert, University of Tennessee Knoxville USA, Madurga Miguel, University of Tennessee Knoxville USA, Stone Nicholas, University of Tennessee Knoxville USA, Stone Rikovska Jirina, University of Tennessee Knoxville USA, Gaulard Carole, CSNSM Université Paris Sud France, Roccia Stephanie, CSNSM Université Paris Sud France and ILL Grenoble, Koester Ulli, ILL Grenoble, and Walters William, University of Maryland College Park USA

Subjects
Detectors and Experimental Techniques
Published
2019

8. $\beta$-delayed neutron spectroscopy of $^{130-132}$Cd isotopes with the ISOLDE decay station and the VANDLE array

Author

Madurga Flores, Miguel, Grzywacz, Robert, Kolos, K, Bardayan, D, Borge, M J G, Brewer, N T, Cocolios, T E, Cizewski, J A, Dillman, I, Fijalkowska, A, Fraile, L M, Gross, C J, Goetz, K C, Ilyushkin, S V, Mazzocchi, C, Manning, B, Miernik, K, Miller, D, Paulauskas, S V, Peters, W A, Ratkiewicz, A, Rykaczewski, K P, Taylor, S, Tengblad, O, Sotty, C, De Witte, H, and Xiao, Y

Subjects
Detectors and Experimental Techniques
Published
2014

9. $\beta$-delayed neutrons from oriented $^{137,139}$I and $^{87,89}$Br nuclei

Author

Grzywacz, Robert, Stone, Jirina, Stone, Nicholas, Köster, Ulli, Singh, Barlaj, Bingham, Carrol, Gaulard, S, Kolos, Karolina, Madurga, Miguel, Nikolov, J, Otsubo, T, Roccia, S, Veskovic, Miroslav, Walker, Phil, and Walters, William

Subjects
Detectors and Experimental Techniques, Nuclear Experiment
Abstract

We propose a world-­‐first measurement of the angular distribution of $\beta$-­‐delayed n and $\gamma$- radiation from oriented $^{137, 139}$I and $^{87,89}$Br nuclei, polarised at low temperature at the NICOLE facility. $\beta$-­‐delayed neutron emission is an increasingly important decay mechanism as the drip line is approached and its detailed understanding is essential to phenomena as fundamental as the r‐process and practical as the safe operation of nuclear power reactors. The experiments offer sensitive tests of theoretical input concerning the allowed and first-­‐forbidden $\beta$‐decay strength, the spin-­‐density of neutron emitting states and the partial wave barrier penetration as a function of nuclear deformation. In $^{137}$I and $^{87}$Br the decay feeds predominantly the ground state of the daughters $^{136}$Xe and $^{86}$Kr whereas in $^{139}$I and $^{89}$Br we will explore the use of n-$\gamma$- coincidence to study neutron transitions to the first and second excited states in the daughters $^{138}$Xe and $^{88}$Kr. These measurements will use the new “Versatile Array of Neutron Detectors at Low Energy” (VANDLE) and high purity Ge detectors for neutron-­‐$\gamma$- coincidence and monitoring of the nuclear orientation experiment. This instrument had its first use in on-­‐line experiments using fission fragments at HRIBF and in direct reaction studies at NSCL and Notre Dame University. The experiments described in this proposal have direct relevance to a recently initiated Coordinated Research Project (CRP) at the International Atomic Energy Agency (IAEA) in Vienna on the development of a “Reference Database for $\beta$-­delayed Neutron Emission Evaluation”.

Published
2013

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