Identification and decay spectroscopy of 100Sn at the GSI projectile fragment separator FRS

1997 ◽  
Vol 616 (1-2) ◽  
pp. 341-345 ◽  
Author(s):  
K. Sümmerer ◽  
R. Schneider ◽  
T. Faestermann ◽  
J. Friese ◽  
H. Geissel ◽  
...  
2010 ◽  
Vol 19 (08n09) ◽  
pp. 1823-1828 ◽  
Author(s):  
X. Y. SUN ◽  
J. G. CHEN ◽  
D. Q. FANG ◽  
Y. G. MA ◽  
X. Z. CAI ◽  
...  

An experiment of 22 Mg and 20 Ne beams bombarding on a 12 C target at an energy of 60~70 A MeV has been performed at the RIKEN projectile fragment separator (RIPS) in the RIKEN Ring Cyclotron Facility to study the two-proton correlated emission from 22 Mg and 20 Ne excited states. The two-protons momentum correlation functions have been obtained for 22 Mg and 20 Ne , respectively. The trajectories of the 22 Mg decayed products (20 Ne + p + p ) were also measured to get the angular correlations between the two protons in Center of Mass of decaying system by relativistic-kinematics reconstruction. The results exhibit that 22 Mg has the features of 2 He cluster decay mechanism.


Author(s):  
D.J. Morrissey ◽  
B.M. Sherrill ◽  
M. Steiner ◽  
A. Stolz ◽  
I. Wiedenhoever

Author(s):  
B.M. Sherrill ◽  
D.J. Morrissey ◽  
J.A. Nolen ◽  
J.A. Winger

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
S. V. Kutsaev ◽  
A. S. Plastun ◽  
R. Agustsson ◽  
D. Bazin ◽  
N. Bultman ◽  
...  

AbstractThe Facility for Rare Isotope Beams (FRIB) will be a new scientific user facility that produces rare-isotope beams for experiments from the fragmentation of heavy ions at energies of 100–200 MeV/u. During the projectile fragmentation, the rare isotope of interest is produced along with many contaminants that need to be removed before the beam reaches detectors. At FRIB, this is accomplished with a magnetic projectile fragment separator. However, to achieve higher beam purity, in particular for proton-rich rare isotopes, additional purification is necessary. RadiaBeam in collaboration with Michigan State University (MSU) has designed a 20.125 MHz radiofrequency (RF) fragment separator capable of producing a 4 MV kick with 18 cm aperture in order to remove contaminant isotopes based on their time of flight. In this paper, we will discuss the RF and engineering design considerations of this separator cavity.


2009 ◽  
Author(s):  
T. Sonoda ◽  
M. Wada ◽  
A. Takamine ◽  
K. Okada ◽  
P. Schury ◽  
...  

1998 ◽  
Vol 13 (33) ◽  
pp. 2665-2678 ◽  
Author(s):  
DEBASIS BHOWMICK ◽  
ALOK CHAKRABARTI ◽  
D. N. BASU ◽  
PREMOMOY GHOSH ◽  
RANJANA GOSWAMI

The projectile fragment separator type radioactive ion beam (RIB) facilities, being developed in different laboratories, provide the scope for producing many new exotic nuclei through fragmentation of high energy radioactive ion (RI) beams. A new empirical parametrization for the estimation of cross-sections of projectile fragments has been prescribed for studying the advantages and limitations of high energy RI beams for the production of new exotic nuclei. The parametrization reproduces the experimental data for the production of fragments from neutron-rich projectiles accurately in contrast to the existing parametrization which tends to overestimate the cross-section of neutron-rich fragments in most cases. The modified formalism has been used to compute the cross-sections of neutron-rich species produced by fragmentation of radioactive projectiles (RIBs). It has been found that, given any limit of production cross-section, the exoticity of the fragment increases rather slowly and shows a saturation tendency as the projectile is made more and more exotic. This essentially limits, to an extent, the utility of very neutron-rich radioactive beams vis-a-vis production of new neutron-rich exotic species.


2013 ◽  
Vol 13 (1) ◽  
pp. 189-195 ◽  
Author(s):  
Ji-Gwang Hwang ◽  
Eun-San Kim ◽  
Kichiji Hatanaka

2010 ◽  
Vol 19 (05n06) ◽  
pp. 957-964 ◽  
Author(s):  
P. ZHOU ◽  
D. Q. FANG ◽  
Y. G. MA ◽  
X. Z. CAI ◽  
J. G. CHEN ◽  
...  

Experiments of 23 Al and 22 Mg radioactive beams bombarding a 12 C target at an energy of 60 ~70 A MeV have been performed at the projectile fragment separator beamline (RIPS) in the RIKEN Ring Cyclotron Facility to study the two-proton emission from 23 Al and 22 Mg excited states, respectively. The trajectorie of the decay products, namely 21 Na + p + p from 23 Al and 20 Ne + p + p from 22 Mg , are clean identified. The relative momentum and opening angle between two protons in the rest frame of three body decay channels are obtained by relativistic-kinematics reconstruction. The results demonstrate that there are some di-proton emission components from 2 He cluster for the excited 23 Al and 22 Mg .


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