The energy loss profiles of different ion beams (6Li, 27Al and 50Ti) impinging on CF4, isobutane and P10 have been measured with the active target ACTAR TPC demonstrator. The pressure of the gas, ...monitored during the experiment, has been chosen in order to stop the ions inside the active zone. Starting from the energy loss calculation produced by the SRIM code, the experimental ion tracks have been simulated, taking into account the effect of the thermal diffusion of electrons during their drift towards the pad plane under the effect of a uniform electric field. The uncertainty in the geometry, mainly due to the thickness and deformation of the mylar interface window between the gas volume and the high vacuum line, has been taken into account. A good agreement is obtained between the experimental and simulated energy loss profiles.
An experiment was conducted at the GANIL/LISE3 facility to produce the 10+ isomer of 54Ni and measure its proton radioactivity decay branches. The proton detection was achieved with the ACTAR TPC ...device that enabled the separation of the small signal of the emitted proton from the large signal of the implanted ion, while the decay half-life is of the order of 150 ns. From the measured data, the emitted proton track length and the decay time of the ion can be extracted simultaneously. The full proton radioactivity pattern could be established, with two emission branches and their relative branching ratio. Data processing and analysis that allowed to identify and separate the ion and the proton signals in order to reconstruct the particles trajectories and decay time are detailed. The evaluation of the detection efficiency for the proton radioactivity branches based on a full simulation is described.
The neutron rich carbon isotope 15C is the only known case of an almost "pure" 2s1/2 single-neutron halo ground state configuration. At collision energies around the Coulomb barrier the reaction ...dynamics is expected to be dominated by single neutron transfer and breakup. To investigate these effects, we have measured the scattering of 15C with a 208Pb target at 65 MeV at the HIE-ISOLDE facility in CERN (Geneva, Switzerland). The preliminary data demonstrates the presence of a strong long-range absorption pattern in the angular distribution of the elastic cross section. The results are discussed in the framework of Optical Model calculations.
Abstract
The neutron rich carbon isotope
15
C is the only known case of an almost “pure” 2
s1/2
single-neutron halo ground state configuration. At collision energies around the Coulomb barrier the ...reaction dynamics is expected to be dominated by single neutron transfer and breakup. To investigate these effects, we have measured the scattering of
15
C with a
208
Pb target at 65 MeV at the HIE-ISOLDE facility in CERN (Geneva, Switzerland). The preliminary data demonstrates the presence of a strong long-range absorption pattern in the angular distribution of the elastic cross section. The results are discussed in the framework of Optical Model calculations.
The neutron-rich carbon isotope 15C was postulated to be a halo nucleus (Sn = 1215 keV, S2n = 9395 keV) according to different high-energy experiments. If so, it would be the only halo nucleus ...exhibiting a "pure" s-wave structure of the ground state. At low collision energies, the effect of this halo structure should manifest as a strong absorption pattern in the angular distribution of the elastic cross section, with a total suppression of the nuclear rainbow due to the large neutron transfer and breakup probabilities, enhanced by the halo configuration. The IS619 experiment, carried out at the HIE-ISOLDE facility at CERN (Switzerland), is the first dynamical study of this nucleus at energies around the Coulomb barrier. It aims to probe the halo structure via the measurement of the elastic cross section on a high-Z 208Pb target. Preliminary results of the elastic cross section are discussed and compared to Optical Model calculations.
The neutron-rich carbon isotope 15C was postulated to be a halo nucleus (Sn = 1215 keV, S2n = 9395 keV) according to different high-energy experiments. If so, it would be the only halo nucleus ...exhibiting a "pure" s-wave structure of the ground state. At low collision energies, the effect of this halo structure should manifest as a strong absorption pattern in the angular distribution of the elastic cross section, with a total suppression of the nuclear rainbow due to the large neutron transfer and breakup probabilities, enhanced by the halo configuration. The IS619 experiment, carried out at the HIE-ISOLDE facility at CERN (Switzerland), is the first dynamical study of this nucleus at energies around the Coulomb barrier. It aims to probe the halo structure via the measurement of the elastic cross section on a high-Z 208Pb target. Preliminary results of the elastic cross section are discussed and compared to Optical Model calculations.
Diseased Labeo rohita (26 plus or minus 0.4 cm) were treated with turmeric (Curcuma longa), which can cure Vibriosis using the dipping method. Labeo rohita were collected from the wild (Tamirabarani ...River, Tamil Nadu). The enumeration of bacteria isolated from diseased fish ranged from 2.3 plus or minus 0.8x10 super(5) to 6.5 plus or minus 0.5x10 super(7) cfu times g super(-1). The various bacteria isolated were Aeromonas hydrophila, Escherichia coli, Pseudomonas sp. and Vibrio anguillarium. The antimicrobial activity of medicinal herbal extracts of turmeric (C. longa), neem (Azadirachta indica) and Aloe vera (both ethanol and distilled water extracts) was noticed against the isolated bacteria. The maximum zone of inhibition of the antimicrobial activity was noticed in turmeric extracts against all the bacteria. Healthy L. rohita (18 plus or minus 0.45 cm) were injected with Gram-negative bacterium V. anguillarum (10 super(6) cfu times ml super(-1)) to observe the signs of disease. The signs were noticed externally on the 5 super(th) day after injection. Hemorrhagic spots appeared at the site of injection and the lesions progressed subsequently. The infected L. rohita individuals were treated with the application of turmeric powder suspension (2g times L super(-1) water) using the dipping method. The infected individuals were allowed to swim in the turmeric water for 10 min daily until the lesions healed completely (21 days), which was considered as the treated group. Another set of injected fish that were not given the dip treatment was classified as the untreated group. The control groups were injected with physiological saline. The hematological parameters of control, treated and untreated group were monitored on days 0, 7, 14 and 21 which showed significant differences (P<0.05). The total leucocyte count (WBC: 10 super(4) mm super(-3)) significantly (P<0.05) increased from initial (3.25 plus or minus 0.43) to final (3.31 plus or minus 0.47) in treated L. rohita. The total erythrocyte count (RBC: 10 super(6) mm super(-3)) decreased in the untreated group from day 7 (2.58 plus or minus 0.13) to day 14 (2.06 plus or minus 0.03) and decreased thereafter up to day 21 (1.93 plus or minus 0.09). There was no increment in RBC count until day 21, except for minor fluctuation observed between the initial (day 0: 2.58 plus or minus 0.13) and the final (day 21: 2.74 plus or minus 0.12). The hemoglobin (Hb: g times dl super(-1)) and packed cell volume (PCV: %) counts significantly (P<0.01) decreased on day 14, but increased on day 21 in the treated group. When compared with the control and untreated groups, the total protein level significantly (P< 0.05) increased on day 21 (5.21 plus or minus 1.25) in treated fish. The antibody agglutination titre value was higher in the untreated group than in the treated and control groups. In the treated group, the titre value increased from day 1 (72 plus or minus 2.7) to day 14 (160 plus or minus 1.52) and decreased later till day 21 (144 plus or minus 3.5). The application of medicinal herb turmeric through dip treatment elicited wound healing and subsequent control of Vibriosis in L. rohita.
The purpose of this study is to examine the value chain analysis of, consumers' awareness level of, and buying motives toward mushroom products. The primary data were collected through face-to-face ...interviews and by using a questionnaire filled out by 70 consumers from various major mushroom production districts, selected by non-random sampling. Secondary data were collected from various sources. Based on the data analysis, it was found that around 73% of consumers preferred to buy their mushroom products in the supermarket, and 71% of consumers responded that factors other than the shape, color, and size of mushrooms motivated them to buy them. The research concludes that urban consumers were well aware of the nutrition value of mushrooms, but their consumption level was very low compared to non-vegetarians urban consumer in the studied area. Nearly 30% of respondents believed a myth about mushrooms having a mold and were prepared from compost, which causes a bad smell. It was found that that while producers put forth more effort and energy than other actors into the mushroom value chain they received less revenue and profit than wholesalers and retailers. Therefore, policy makers should develop new norms to remove barriers and others issues to safeguard mushroom producers for sustainable growth of the mushroom sector in India. In the future, there will be an increase in the consumption of processed foods. Hence, food companies have to concentrate on mushroom processing and fresh mushroom production.
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