Time projection chamber for experiments with heavy ions

Artukh, A.G.; Budagov, Yu.A.; Hlinka, V.; Holý, Karol; Kladiva, E.; Nikitin, V.A.; Omelyanenko, A.A.; Povinec, P.; Seman, M.; Semenov, A.; Sitár, B.; Spałek, J.; Teterev, Yu. G.

doi:10.1088/0954-3899/17/s/054

Cited by 3 publications

(10 citation statements)

References 3 publications

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“…Figure 4 presents the view of the dispersion plane F d of the COMBAS kinematic separator, which was recorded by a video camera in the experiment on the 11 B beams with an energy of 33 MeV/A. The cas cade of light vertical bands 1-15 on the coordinate grid of the luminophor platform was obtained by ion izing of the luminophor with the primary monochro matic 11 step ΔBρ/Bρ = 1% (or in momentum space, Δp/p = 1%). The number of vertical bands (15) determines the maximum momentum acceptance of the COMBAS fragment separator (Δp/p) max = 15%, which is equiva lent to particle capture by energy ΔE/E = 30%.…”

Section: Combas Kinematic Separatormentioning

confidence: 99%

“…(2) the gas filling multi track detector (time pro jection chamber TPC) to reconstruct the complete kinematics of rare multi particle decays of short lived unstable nuclei [11].…”

Section: The Combas Detector Systemmentioning

confidence: 99%

“…Motivated by such an idea, a luminosity and the high informative tracking detector (the time pro jection chamber TPC) was developed that allow three dimensional reconstruction of multi track events with a high spatial resolution and identification of charged particles by ionization sampling [11]. Furthermore, the large sensitive gas volume of the TPC and its prop erty to visualize all the tracks of multi particle process permits to use effectively the detector TPC itself in the mode detector gas target detector.…”

Section: The Gas Filling Track Detector (Tpc)mentioning

confidence: 99%

“…The TPC detector [11] consist of 64 drift layers 20 mm thickness each for ionization sampling. Uni form electric field for each drift layer is formed by anode wire of proportional counter.…”

Section: The Gas Filling Track Detector (Tpc)mentioning

confidence: 99%

“…The values of the parameters (r 0 ) and (a) have been adjusted by using a χ 2 minimizing procedure. To take into account more correctly the neutron skin for the target and projectile the new parametrization of R surf was proposed: (11) where the neutron excess term (D) can be expressed as (12) As a result the reaction cross section is written as (13) where b = 1.85 is an asymmetry parameter, c(E) = 0.31 + 0.014E/A p is an energy dependent transparency and B c is the Coulomb barrier.…”

Section: Study Of the Nuclear Sizes Of Radioactive Nucleimentioning

confidence: 99%

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Radioactive nuclear beams of COMBAS facility

et al. 2016

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The basic ion optical characteristics of the luminosity and the high resolution of kinematic sep arator COMBAS realized for the first time on the strong focusing principle are presented. The developed facility allows to separate the high intensity secondary radioactive beams in a wide range of mass numbers A and atomic numbers Z which are produced in heavy ion reactions in the energy range of 20 ≤ E ≤ 100 MeV/A (Fermi energy domain). Two distinct detector systems such as realized Si strip detector telescope and the promising development of the three dimension time projection chamber are discussed. Program of the inves tigations of nuclear reaction mechanisms at intermediate energies of 20-100 MeV/A, measurement of the radii of unstable nuclei, study of the cluster structure of light nuclei near the nuclear drip line and search of 26,28 O resonances in exchange reactions is proposed. The upgrading of experimental facility by the integration of COMBAS separator with the Ion Catcher is discussed.

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Section: Combas Kinematic Separatormentioning

confidence: 99%

“…(2) the gas filling multi track detector (time pro jection chamber TPC) to reconstruct the complete kinematics of rare multi particle decays of short lived unstable nuclei [11].…”

Section: The Combas Detector Systemmentioning

confidence: 99%

Section: The Gas Filling Track Detector (Tpc)mentioning

confidence: 99%

Section: The Gas Filling Track Detector (Tpc)mentioning

confidence: 99%

Section: Study Of the Nuclear Sizes Of Radioactive Nucleimentioning

confidence: 99%

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Radioactive nuclear beams of COMBAS facility

et al. 2016

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Spatial resolution and electronics of multilayer proportional detectors

Springer Tracts in Modern Physics

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Enhanced production of neutron-rich rare isotopes in the reaction of 25 MeV/nucleon 86Kr on 64Ni

et al. 2002

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The cross sections and velocity distributions of projectile-like fragments from the reaction of 25 MeV/nucleon 86 Kr + 64 Ni have been measured using the MARS recoil separator at Texas A&M, with special emphasis on the neutron rich isotopes. Proton-removal and neutron pick-up isotopes have been observed with large cross sections. A model of deep-inelastic transfer (DIT) for the primary interaction stage and the statistical evaporation code GEMINI for the deexcitation stage have been used to describe the properties of the product distributions. The results have also been compared with the EPAX parametrization of high-energy fragmentation yields. The experimental data show an enhancement in the production of neutron-rich isotopes close to the projectile, relative to the predictions of DIT/GEMINI and the expectations of EPAX. We attribute this enhancement mainly to the effect of the extended neutron distribution (neutron "skin") of the 64 Ni target in peripheral interactions of 86 Kr with 64 Ni. The large cross sections of such reactions near the Fermi energy, involving peripheral nucleon exchange, suggest that, not only the N/Z of the projectile and the target, but also the N/Z distribution at the nuclear surface may properly be exploited in the production of neutron-rich rare isotopes. This synthesis approach may offer a fruitful pathway to extremely neutron-rich nuclei, towards the neutron-drip line.

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Time projection chamber for experiments with heavy ions

Cited by 3 publications

References 3 publications

Radioactive nuclear beams of COMBAS facility

Radioactive nuclear beams of COMBAS facility

Spatial resolution and electronics of multilayer proportional detectors

Enhanced production of neutron-rich rare isotopes in the reaction of 25 MeV/nucleon 86Kr on 64Ni

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