"The MASHA mass spectrometer designed for identifying superheavy elements by their masses is described. The separation efficiency has been measured in the autonomous mode using four calibrated leakages of noble gases. The total separation efficiency of the mass spectrometer with a hot catcher and an ion source based on the electron cyclotron resonance has been determined using the ⁴⁰Ar beam. Test experiments have been carried out, in which \u03B1-active Hg isotopes produced in complete fusion reaction ⁴⁰Ar\u00A0+\u00A0¹⁴⁴Sm\u00A0->\u00A0^184-xnHg\u00A0+\u00A0xn, have been detected in the focal plane of the mass spectrometer. The separation time and efficiency have been determined for short-lived Hg isotopes."@en . "[F2C2B25DD62E]" . "4" . "Vedeneyev, V. Yu." . "Yuchimchuk, S. A." . . "0020-4412" . . "10.1134/S0020441214030208" . "8"^^ . . "RIV/68407700:21670/14:00225260!RIV15-MSM-21670___" . "MASHA separator on the heavy ion beam for determining masses and nuclear physical properties of isotopes of heavy and superheavy elements" . "21670" . "MASHA separator on the heavy ion beam for determining masses and nuclear physical properties of isotopes of heavy and superheavy elements" . . . "Krupa, \u013Dubo\u0161" . "Vanin, D. V." . "Gulyaev, A. V." . "MASHA separator on the heavy ion beam for determining masses and nuclear physical properties of isotopes of heavy and superheavy elements"@en . . "Siv\u00E1\u010Dek, I." . "Kondratiev, N. A." . "Dmitriev, S. N." . "Rodin, A. M." . "57" . . "The MASHA mass spectrometer designed for identifying superheavy elements by their masses is described. The separation efficiency has been measured in the autonomous mode using four calibrated leakages of noble gases. The total separation efficiency of the mass spectrometer with a hot catcher and an ion source based on the electron cyclotron resonance has been determined using the ⁴⁰Ar beam. Test experiments have been carried out, in which \u03B1-active Hg isotopes produced in complete fusion reaction ⁴⁰Ar\u00A0+\u00A0¹⁴⁴Sm\u00A0->\u00A0^184-xnHg\u00A0+\u00A0xn, have been detected in the focal plane of the mass spectrometer. The separation time and efficiency have been determined for short-lived Hg isotopes." . "Belozerov, A. V." . "Instruments and Experimental Techniques" . "Stepantsov, S. V." . "Itkis, M. G." . "Gulyaeva, A. V." . "Kliman, J." . "000340426600003" . "RIV/68407700:21670/14:00225260" . . "superheavy elements; Mass Analyzer of Super Heavy Atoms (MASHA); mass spectrometer; separation efficiency; nuclear fusion; heavy ion beams"@en . "http://link.springer.com/article/10.1134/S0020441214030208" . "Krupa, \u013Dubo\u0161" . "P(LG14004)" . "MASHA separator on the heavy ion beam for determining masses and nuclear physical properties of isotopes of heavy and superheavy elements"@en . . . . . "Salamatin, V. S." . "27494" . "1"^^ . "Chernysheva, E. V." . . . . . "17"^^ . "RU - Rusk\u00E1 federace" . "Oganessian, Yu. Ts." . .