Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer

J.-m. Régis; G.s. Simpson; A. Blanc; G. De France; M. Jentschel; U. Köster; P. Mutti; V. Paziy; N. Saed-samii; T. Soldner; C.a. Ur; W. Urban; A.m. Bruce; F. Drouet; L.m. Fraile; S. Ilieva; J. Jolie; W. Korten; T. Kröll; S. Lalkovski; H. Mach; N. Mărginean; G. Pascovici; Zs. Podolyak; P.h. Regan; O.j. Roberts; J.f. Smith; C. Townsley; A. Vancraeyenest; N. Warr

doi:10.1016/j.nima.2014.06.004

Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer

J.-m. Régis, G.s. Simpson, A. Blanc, G. De France, M. Jentschel, U. Köster, P. Mutti, V. Paziy, N. Saed-samii, T. Soldner, C.a. Ur, W. Urban, A.m. Bruce, F. Drouet, L.m. Fraile, S. Ilieva, J. Jolie, W. Korten, T. Kröll, S. LalkovskiH. Mach, N. Mărginean, G. Pascovici, Zs. Podolyak, P.h. Regan, O.j. Roberts, J.f. Smith, C. Townsley, A. Vancraeyenest, N. Warr

School of Computing, Engineering and Physical Sciences

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

A high-granularity mixed spectrometer consisting of high-resolution Ge and very fast LaBr3(Ce)-scintillator detectors has been installed around afission target at the cold-neutron guide PF1B of thehigh-flux reactor of the Institut Laue–Langevin. Lifetimes of excited states in the range of 10 ps to 10 nscan be measured in around 100 exotic neutron-richfission fragments using Ge-gated LaBr3(Ce)–LaBr3(Ce) or Ge–Ge–LaBr3(Ce)–LaBr3(Ce) coincidences. We report on various characteristics of theEXILL&FATIMA spectrometer for the energy range of 40 keV up to 6.8 MeV and present results of ps-lifetime test measurements in afission fragment. The results are discussed with respect to possiblesystematic errors induced by background contributions.

Original language	English
Pages (from-to)	210-220
Number of pages	11
Journal	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	763
Early online date	11 Jun 2014
DOIs	https://doi.org/10.1016/j.nima.2014.06.004
Publication status	Published - 1 Nov 2014

Keywords

fast-timing arrays
LaBr3(Ce) scintillators
Lifetime measurements
the GCD method
Neutron capture gamma rays
Neutron induced fission

Access to Document

10.1016/j.nima.2014.06.004

https://research.brighton.ac.uk/en/publications/germanium-gated-%CE%B3%CE%B3-fast-timing-of-excited-states-in-fission-fragm

Cite this

Régis, J., Simpson, G. S., Blanc, A., De France, G., Jentschel, M., Köster, U., Mutti, P., Paziy, V., Saed-samii, N., Soldner, T., Ur, C. A., Urban, W., Bruce, A. M., Drouet, F., Fraile, L. M., Ilieva, S., Jolie, J., Korten, W., Kröll, T., ... Warr, N. (2014). Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 763, 210-220. https://doi.org/10.1016/j.nima.2014.06.004

@article{a32976d79d67484cac2681e36ed27f2a,

title = "Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer",

abstract = "A high-granularity mixed spectrometer consisting of high-resolution Ge and very fast LaBr3(Ce)-scintillator detectors has been installed around afission target at the cold-neutron guide PF1B of thehigh-flux reactor of the Institut Laue–Langevin. Lifetimes of excited states in the range of 10 ps to 10 nscan be measured in around 100 exotic neutron-richfission fragments using Ge-gated LaBr3(Ce)–LaBr3(Ce) or Ge–Ge–LaBr3(Ce)–LaBr3(Ce) coincidences. We report on various characteristics of theEXILL&FATIMA spectrometer for the energy range of 40 keV up to 6.8 MeV and present results of ps-lifetime test measurements in afission fragment. The results are discussed with respect to possiblesystematic errors induced by background contributions.",

keywords = "fast-timing arrays, LaBr3(Ce) scintillators, Lifetime measurements, the GCD method, Neutron capture gamma rays, Neutron induced fission",

author = "J.-m. R{\'e}gis and G.s. Simpson and A. Blanc and {De France}, G. and M. Jentschel and U. K{\"o}ster and P. Mutti and V. Paziy and N. Saed-samii and T. Soldner and C.a. Ur and W. Urban and A.m. Bruce and F. Drouet and L.m. Fraile and S. Ilieva and J. Jolie and W. Korten and T. Kr{\"o}ll and S. Lalkovski and H. Mach and N. M{\u a}rginean and G. Pascovici and Zs. Podolyak and P.h. Regan and O.j. Roberts and J.f. Smith and C. Townsley and A. Vancraeyenest and N. Warr",

year = "2014",

month = nov,

day = "1",

doi = "10.1016/j.nima.2014.06.004",

language = "English",

volume = "763",

pages = "210--220",

journal = "Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

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}

Régis, J, Simpson, GS, Blanc, A, De France, G, Jentschel, M, Köster, U, Mutti, P, Paziy, V, Saed-samii, N, Soldner, T, Ur, CA, Urban, W, Bruce, AM, Drouet, F, Fraile, LM, Ilieva, S, Jolie, J, Korten, W, Kröll, T, Lalkovski, S, Mach, H, Mărginean, N, Pascovici, G, Podolyak, Z, Regan, PH, Roberts, OJ, Smith, JF, Townsley, C, Vancraeyenest, A & Warr, N 2014, 'Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer', Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 763, pp. 210-220. https://doi.org/10.1016/j.nima.2014.06.004

Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer. / Régis, J.-m.; Simpson, G.s.; Blanc, A. et al.
In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 763, 01.11.2014, p. 210-220.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer

AU - Régis, J.-m.

AU - Simpson, G.s.

AU - Blanc, A.

AU - De France, G.

AU - Jentschel, M.

AU - Köster, U.

AU - Mutti, P.

AU - Paziy, V.

AU - Saed-samii, N.

AU - Soldner, T.

AU - Ur, C.a.

AU - Urban, W.

AU - Bruce, A.m.

AU - Drouet, F.

AU - Fraile, L.m.

AU - Ilieva, S.

AU - Jolie, J.

AU - Korten, W.

AU - Kröll, T.

AU - Lalkovski, S.

AU - Mach, H.

AU - Mărginean, N.

AU - Pascovici, G.

AU - Podolyak, Zs.

AU - Regan, P.h.

AU - Roberts, O.j.

AU - Smith, J.f.

AU - Townsley, C.

AU - Vancraeyenest, A.

AU - Warr, N.

PY - 2014/11/1

Y1 - 2014/11/1

N2 - A high-granularity mixed spectrometer consisting of high-resolution Ge and very fast LaBr3(Ce)-scintillator detectors has been installed around afission target at the cold-neutron guide PF1B of thehigh-flux reactor of the Institut Laue–Langevin. Lifetimes of excited states in the range of 10 ps to 10 nscan be measured in around 100 exotic neutron-richfission fragments using Ge-gated LaBr3(Ce)–LaBr3(Ce) or Ge–Ge–LaBr3(Ce)–LaBr3(Ce) coincidences. We report on various characteristics of theEXILL&FATIMA spectrometer for the energy range of 40 keV up to 6.8 MeV and present results of ps-lifetime test measurements in afission fragment. The results are discussed with respect to possiblesystematic errors induced by background contributions.

AB - A high-granularity mixed spectrometer consisting of high-resolution Ge and very fast LaBr3(Ce)-scintillator detectors has been installed around afission target at the cold-neutron guide PF1B of thehigh-flux reactor of the Institut Laue–Langevin. Lifetimes of excited states in the range of 10 ps to 10 nscan be measured in around 100 exotic neutron-richfission fragments using Ge-gated LaBr3(Ce)–LaBr3(Ce) or Ge–Ge–LaBr3(Ce)–LaBr3(Ce) coincidences. We report on various characteristics of theEXILL&FATIMA spectrometer for the energy range of 40 keV up to 6.8 MeV and present results of ps-lifetime test measurements in afission fragment. The results are discussed with respect to possiblesystematic errors induced by background contributions.

KW - fast-timing arrays

KW - LaBr3(Ce) scintillators

KW - Lifetime measurements

KW - the GCD method

KW - Neutron capture gamma rays

KW - Neutron induced fission

U2 - 10.1016/j.nima.2014.06.004

DO - 10.1016/j.nima.2014.06.004

M3 - Article

SN - 0168-9002

VL - 763

SP - 210

EP - 220

JO - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

ER -

Régis J, Simpson GS, Blanc A, De France G, Jentschel M, Köster U et al. Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2014 Nov 1;763:210-220. Epub 2014 Jun 11. doi: 10.1016/j.nima.2014.06.004

Germanium-gated γ–γ fast timing of excited states in fission fragments using the EXILL & FATIMA spectrometer

Abstract

Keywords

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