53 research outputs found

    Does the presence of anhydramnios affect the duration of medical abortion?

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    Objectives: The aim of the study was to determine whether anhydramnios affected the duration of medical abortion in cases with various indications as compared to cases with normal amniotic fluid volume. Material and methods: Patients who were admitted to our clinic because of medical abortion between January 2010–December 2013 were included in this retrospective study. A total of 32 pregnant women with anhydramnios (study group) and 67 pregnant women with normal amniotic fluid volume but with fetal abnormality (control group) were included in the study. Patient age, gravidity, parity, gestational age, previous delivery route, and duration of the abortion were recorded. Results: Mean duration of the abortion in the study group was 71.93 ± 47.51 h as compared to 79.08 ± 52.62 h in the control group. There were no statistically significant differences between the two groups in terms of duration of the abortion (p = 0.516). Also, we found no statistically significant differences in duration of the abortion with regard to previous delivery route (p = 0.220). Conclusions: There were no statistically significant differences between the study group and controls in terms of duration of the abortion. In addition, neither parity nor previous delivery route affected the duration of the abortion

    Ion-extraction from the CISe gas catcher

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    Exotic nuclei produced in nuclear fission or nuclear transfer reactions are of wide interest for nuclear structure and nuclear astrophysics. To prepare these energetic ions for precision mass measurements, gas catchers are frequently used to slow them down and thermalize them. A new gas catcher is built to be used in the CISe setup [1] as well as in the NEXT experiment [2]. The working principle of the gas catcher and report on recent efficiency studies is explained. A 223Ra source was used to investigate ion guidance and ion extraction from the gas cell. Through alpha spectroscopy, it was shown that the daughter isotope 219Rn, with a half-life of 3.96 s, was successfully extracted from the gas-catcher. The ion-extraction was optimized by adjusting the electrode voltages and pressure inside the gas catcher.References [1] A. Mollaebrahimi et al., “A setup to develop novel Chemical Isobaric SEparation (CISE),” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 463, pp. 508–511, Jan. 2020, issn: 0168-583X. doi: 10.1016/J.NIMB.2019.03.018. [2] J. Even et al., “The NEXT Project: Towards Production and Investigation of Neutron-Rich Heavy Nuclides,” Atoms, vol. 10, no. 2, Jun. 2022, issn: 22182004. doi: 10.3390/ATOMS10020059

    Ion-extraction from the CISe gas catcher

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    Exotic nuclei produced in nuclear fission or nuclear transfer reactions are of wide interest for nuclear structure and nuclear astrophysics. To prepare these energetic ions for precision mass measurements, gas catchers are frequently used to slow them down and thermalize them. A new gas catcher is built to be used in the CISe setup [1] as well as in the NEXT experiment [2]. The working principle of the gas catcher and report on recent efficiency studies is explained. A 223Ra source was used to investigate ion guidance and ion extraction from the gas cell. Through alpha spectroscopy, it was shown that the daughter isotope 219Rn, with a half-life of 3.96 s, was successfully extracted from the gas-catcher. The ion-extraction was optimized by adjusting the electrode voltages and pressure inside the gas catcher.References [1] A. Mollaebrahimi et al., “A setup to develop novel Chemical Isobaric SEparation (CISE),” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 463, pp. 508–511, Jan. 2020, issn: 0168-583X. doi: 10.1016/J.NIMB.2019.03.018. [2] J. Even et al., “The NEXT Project: Towards Production and Investigation of Neutron-Rich Heavy Nuclides,” Atoms, vol. 10, no. 2, Jun. 2022, issn: 22182004. doi: 10.3390/ATOMS10020059

    Ion-extraction from the CISe gas catcher

    Get PDF
    Exotic nuclei produced in nuclear fission or nuclear transfer reactions are of wide interest for nuclear structure and nuclear astrophysics. To prepare these energetic ions for precision mass measurements, gas catchers are frequently used to slow them down and thermalize them. A new gas catcher is built to be used in the CISe setup [1] as well as in the NEXT experiment [2]. The working principle of the gas catcher and report on recent efficiency studies is explained. A 223Ra source was used to investigate ion guidance and ion extraction from the gas cell. Through alpha spectroscopy, it was shown that the daughter isotope 219Rn, with a half-life of 3.96 s, was successfully extracted from the gas-catcher. The ion-extraction was optimized by adjusting the electrode voltages and pressure inside the gas catcher.References [1] A. Mollaebrahimi et al., “A setup to develop novel Chemical Isobaric SEparation (CISE),” Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 463, pp. 508–511, Jan. 2020, issn: 0168-583X. doi: 10.1016/J.NIMB.2019.03.018. [2] J. Even et al., “The NEXT Project: Towards Production and Investigation of Neutron-Rich Heavy Nuclides,” Atoms, vol. 10, no. 2, Jun. 2022, issn: 22182004. doi: 10.3390/ATOMS10020059
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