Separation of actinide-made transurania by a gas-filled magnetic separator

Ninov, V.; Armbruster, P.; Heßberger, F. P.; Hofmann, S.; Münzenberg, G.; Fujita, Y.; Leino, M.; Lüttgen, Andrea

doi:10.1016/0168-9002(94)01701-8

Cited by 32 publications

(12 citation statements)

References 17 publications

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“…As was mentioned earlier in a number of works (see, for example [8,13,20,21]), the differential ER angular distributions ds=dO as a function of the W angle in the lab system, which are obtained in fusion-evaporation reactions in thin target experiments, can be approximated by a Gaussian…”

Section: Neutron Evaporation From Cnmentioning

confidence: 98%

Simulation of angular and energy distributions for heavy evaporation residues using statistical model approximations and TRIM code

Sagaidak

Utyonkov

Scarlassara

2013

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Neutron Evaporation From Cnmentioning

confidence: 98%

Simulation of angular and energy distributions for heavy evaporation residues using statistical model approximations and TRIM code

Sagaidak

Utyonkov

Scarlassara

2013

Nuclear Instruments and Methods in Physics Research Section A:

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“…As an alternative separation technique gas-filled separators have been developped using the different magnetic rigidities Bρ of fusion products and projectiles as the basis for separation. Early devices used in investigation of tranfermium nuclei were SASSY [32] and SASSY II [33] at LNBL Berkeley, USA and HECK [34] at GSI. Due to their simpler conception and more compact construction, which allows for separation times below 1 µs gas-filled separators meanwhile have become a wide spread tool for investigation of heaviest nuclei and are operated in many laboratories, e.g.…”

Section: Experimental Approachmentioning

confidence: 99%

Some Aspects on Identification, Decay Properties and Nuclear Structure of the Heaviest Nuclei

Heßberger¹

2021

Preprint

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Synthesis of new elements at the upper border of the charts of nuclei and investigation of their decay properties and nuclear structure has been one of the main research topics in low energy nuclear physics since more than five decades. Main items are the quest for the heaviest nuclei that can exist and the verification of the theoretical predicted spherical proton and neutron shells at Z = 114, 120 or 126 and N = 172 or 184. The scope of the present paper is to illustrate some technical and physical aspects in investigation of the heaviest nuclei ('superheavy nuclei') and to critical discuss some selected results, which from a strict scientific point of view are not completely clear so far, making partly also suggestions for alternatively interpretations. A complete review of the whole field of superheavy element research, however, is out of the scope of this paper.

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“…Usually, a HI charge-changing process in gas is considered in the approximation of proximity to the equilibrated charge with taking into account single-electron capture and loss cross-sections. They are the exponential functions of HI charge state q and have a fixed value of q m as a parameter [4,[21][22][23]. Different approaches were used for the estimate of q m .…”

Section: Mean Equilibrated Charges For Heavy Ions and Ers In H2mentioning

confidence: 99%

“…Gas-filled recoil separators (GFRS) are a useful tool for the separation and studies of the heavy evaporation residues (ERs) produced in complete-fusion reactions of heavy ion (HI) projectiles with heavy target nuclei [1][2][3][4][5][6][7][8]. In these devices, ERs recoiling out of a thin target are efficiently separated in-flight from the primary HI beam particles and other unwanted products within a separation time ∼1 µs.…”

Section: Introductionmentioning

confidence: 99%

Empirical relationships for heavy-ion equilibrated charges and charge-changing cross-sections in rarefied hydrogen and their application

Sagaidak

2020

Preprint

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Ionized heavy evaporation residues (ERs) resulting from heavy ion (HI) fusion-evaporation reactions are knocked out from solid targets to rarefied gas of gas-filled recoil separators. In gas, ionized ERs undergo charge-changing collisions on their way to a detection system. An equilibrium between the loss of charge (electron capture) and the gain of charge (electron loss) for ionized ERs allows one to use equilibrated charge state distributions in trajectory calculations for ERs moving through a magnetic field. The distance from a target to the point where the ER charge state distributions become to be the equilibrated ones is essential for such calculations. This distance can be estimated in simulations based on electron capture and loss cross-sections for energetic HIs. Proper approximations of available experimental data have provided these cross-sections, which were applied to the simulation of the ionic charge evolution for ionized heavy ERs.

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Separation of actinide-made transurania by a gas-filled magnetic separator

Cited by 32 publications

References 17 publications

Simulation of angular and energy distributions for heavy evaporation residues using statistical model approximations and TRIM code

Simulation of angular and energy distributions for heavy evaporation residues using statistical model approximations and TRIM code

Some Aspects on Identification, Decay Properties and Nuclear Structure of the Heaviest Nuclei

Empirical relationships for heavy-ion equilibrated charges and charge-changing cross-sections in rarefied hydrogen and their application

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