The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator

Alexandr Svirikhin; Alexander Andreev; Victor Dushin; Maxim Chelnokov; Victor Chepigin; Mohini Gupta; Andrey Isaev; Igor Izosimov; Denis Katrasev; Alexey Kuznetsov; Oleg Malyshev; Ani Minkova; Simon Mullins; Andrey Popeko; Evgeniy Sokol; Alexander Yeremin

doi:10.1051/epjconf/20136203005

The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator

Alexandr Svirikhin, Alexander Andreev, Victor Dushin, Maxim Chelnokov, Victor Chepigin, Mohini Gupta, Andrey Isaev, Igor Izosimov, Denis Katrasev, Alexey Kuznetsov, Oleg Malyshev, Ani Minkova, Simon Mullins, Andrey Popeko, Evgeniy Sokol, Alexander Yeremin

Manipal Centre for Natural Sciences, Manipal

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

For experiments aimed at the study of spontaneous fission of transfermium nuclei improvements in the focal plane detector system of recoil separator VASSILISSA have been made. A neutron detector consisting of 54 ³He-filled counters has been mounted around the focal-plane detector chamber. The reaction ⁴⁸Ca + ²⁰⁶Pb = 2n + ²⁵²No is used for tuning the separator settings and calibrating the detector system with the spontaneous fission of the ²⁵²No. The average neutron number per ²⁵²No spontaneous fission event is as large as νÌ = 4.06 ± 0.12. The short-lived heavy isotopes ^244,246Fm, produced in the complete fusion reactions ⁴⁰Ar + ^206,208Pb, are investigated. The average number of neutrons per spontaneous fission of ^244,246Fm from the experimental data were (νÌ = 3.3 ± 0.3) and (νÌ = 3.55 ± 0.50), respectively. Both values are determined for the first time.

Original language	English
Title of host publication	Fission 2013 - 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy
Volume	62
DOIs	https://doi.org/10.1051/epjconf/20136203005
Publication status	Published - 2013
Event	5th International Workshop on Nuclear Fission and Fission Product Spectroscopy, Fission 2013 - Caen, France Duration: 28-05-2013 → 31-05-2013

Conference

Conference	5th International Workshop on Nuclear Fission and Fission Product Spectroscopy, Fission 2013
Country	France
City	Caen
Period	28-05-13 → 31-05-13

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1051/epjconf/20136203005

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Svirikhin, A., Andreev, A., Dushin, V., Chelnokov, M., Chepigin, V., Gupta, M., Isaev, A., Izosimov, I., Katrasev, D., Kuznetsov, A., Malyshev, O., Minkova, A., Mullins, S., Popeko, A., Sokol, E., & Yeremin, A. (2013). The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator. In Fission 2013 - 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy (Vol. 62). [03005] https://doi.org/10.1051/epjconf/20136203005

Svirikhin, Alexandr ; Andreev, Alexander ; Dushin, Victor ; Chelnokov, Maxim ; Chepigin, Victor ; Gupta, Mohini ; Isaev, Andrey ; Izosimov, Igor ; Katrasev, Denis ; Kuznetsov, Alexey ; Malyshev, Oleg ; Minkova, Ani ; Mullins, Simon ; Popeko, Andrey ; Sokol, Evgeniy ; Yeremin, Alexander. / The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator. Fission 2013 - 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy. Vol. 62 2013.

@inproceedings{f2e840a82a0848858774ce44b51197d8,

title = "The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator",

abstract = "For experiments aimed at the study of spontaneous fission of transfermium nuclei improvements in the focal plane detector system of recoil separator VASSILISSA have been made. A neutron detector consisting of 54 3He-filled counters has been mounted around the focal-plane detector chamber. The reaction 48Ca + 206Pb = 2n + 252No is used for tuning the separator settings and calibrating the detector system with the spontaneous fission of the 252No. The average neutron number per 252No spontaneous fission event is as large as ν{\`I} = 4.06 ± 0.12. The short-lived heavy isotopes 244,246Fm, produced in the complete fusion reactions 40Ar + 206,208Pb, are investigated. The average number of neutrons per spontaneous fission of 244,246Fm from the experimental data were (ν{\`I} = 3.3 ± 0.3) and (ν{\`I} = 3.55 ± 0.50), respectively. Both values are determined for the first time.",

author = "Alexandr Svirikhin and Alexander Andreev and Victor Dushin and Maxim Chelnokov and Victor Chepigin and Mohini Gupta and Andrey Isaev and Igor Izosimov and Denis Katrasev and Alexey Kuznetsov and Oleg Malyshev and Ani Minkova and Simon Mullins and Andrey Popeko and Evgeniy Sokol and Alexander Yeremin",

year = "2013",

doi = "10.1051/epjconf/20136203005",

language = "English",

isbn = "9782759811236",

volume = "62",

booktitle = "Fission 2013 - 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy",

note = "5th International Workshop on Nuclear Fission and Fission Product Spectroscopy, Fission 2013 ; Conference date: 28-05-2013 Through 31-05-2013",

}

Svirikhin, A, Andreev, A, Dushin, V, Chelnokov, M, Chepigin, V, Gupta, M, Isaev, A, Izosimov, I, Katrasev, D, Kuznetsov, A, Malyshev, O, Minkova, A, Mullins, S, Popeko, A, Sokol, E & Yeremin, A 2013, The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator. in Fission 2013 - 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy. vol. 62, 03005, 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy, Fission 2013, Caen, France, 28-05-13. https://doi.org/10.1051/epjconf/20136203005

The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator. / Svirikhin, Alexandr; Andreev, Alexander; Dushin, Victor; Chelnokov, Maxim; Chepigin, Victor; Gupta, Mohini; Isaev, Andrey; Izosimov, Igor; Katrasev, Denis; Kuznetsov, Alexey; Malyshev, Oleg; Minkova, Ani; Mullins, Simon; Popeko, Andrey; Sokol, Evgeniy; Yeremin, Alexander.

Fission 2013 - 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy. Vol. 62 2013. 03005.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - The investigation of properties of short-lived SF isotopes (Z > 100) at the focal plane of VASSILISSA separator

AU - Svirikhin, Alexandr

AU - Andreev, Alexander

AU - Dushin, Victor

AU - Chelnokov, Maxim

AU - Chepigin, Victor

AU - Gupta, Mohini

AU - Isaev, Andrey

AU - Izosimov, Igor

AU - Katrasev, Denis

AU - Kuznetsov, Alexey

AU - Malyshev, Oleg

AU - Minkova, Ani

AU - Mullins, Simon

AU - Popeko, Andrey

AU - Sokol, Evgeniy

AU - Yeremin, Alexander

PY - 2013

Y1 - 2013

N2 - For experiments aimed at the study of spontaneous fission of transfermium nuclei improvements in the focal plane detector system of recoil separator VASSILISSA have been made. A neutron detector consisting of 54 3He-filled counters has been mounted around the focal-plane detector chamber. The reaction 48Ca + 206Pb = 2n + 252No is used for tuning the separator settings and calibrating the detector system with the spontaneous fission of the 252No. The average neutron number per 252No spontaneous fission event is as large as νÌ = 4.06 ± 0.12. The short-lived heavy isotopes 244,246Fm, produced in the complete fusion reactions 40Ar + 206,208Pb, are investigated. The average number of neutrons per spontaneous fission of 244,246Fm from the experimental data were (νÌ = 3.3 ± 0.3) and (νÌ = 3.55 ± 0.50), respectively. Both values are determined for the first time.

AB - For experiments aimed at the study of spontaneous fission of transfermium nuclei improvements in the focal plane detector system of recoil separator VASSILISSA have been made. A neutron detector consisting of 54 3He-filled counters has been mounted around the focal-plane detector chamber. The reaction 48Ca + 206Pb = 2n + 252No is used for tuning the separator settings and calibrating the detector system with the spontaneous fission of the 252No. The average neutron number per 252No spontaneous fission event is as large as νÌ = 4.06 ± 0.12. The short-lived heavy isotopes 244,246Fm, produced in the complete fusion reactions 40Ar + 206,208Pb, are investigated. The average number of neutrons per spontaneous fission of 244,246Fm from the experimental data were (νÌ = 3.3 ± 0.3) and (νÌ = 3.55 ± 0.50), respectively. Both values are determined for the first time.

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U2 - 10.1051/epjconf/20136203005

DO - 10.1051/epjconf/20136203005

M3 - Conference contribution

AN - SCOPUS:84893242265

SN - 9782759811236

VL - 62

BT - Fission 2013 - 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy

T2 - 5th International Workshop on Nuclear Fission and Fission Product Spectroscopy, Fission 2013

Y2 - 28 May 2013 through 31 May 2013

ER -