A mass spectrometer for fission fragments based on time-of-flight and energy measurements

Oed, A.; Geltenbort, P.; Brissot, R.; Gönnenwein, F.; Perrin, Paul B.; Aker, E.; Engelhardt, D.

doi:10.1016/0167-5087(84)90232-1

Cited by 52 publications

(26 citation statements)

References 22 publications

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“…Brought to you by | UAE University Authenticated Download Date | 6/13/16 9:02 AM A more recent instrument able in principle to measure energy and velocity of both fission fragments with a considerably improved resolution is "Cosi fan tutte" [11,12].…”

Section: Measurements Based On Momentum Conservationmentioning

confidence: 99%

15 Fission Fragment Mass, Charge and Energy Distributions

1997

Experimental Techniques in Nuclear Physics

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Section: Measurements Based On Momentum Conservationmentioning

confidence: 99%

15 Fission Fragment Mass, Charge and Energy Distributions

1997

Experimental Techniques in Nuclear Physics

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“…Mass spectrometers for fission fragment studies have been used for decades [1][2][3][4][5]. We present here the results of tests designed to calibrate the detectors which measure particle velocities for the SPectrometer for Ion DEtermination in fission Research (SPIDER).…”

Section: Introductionmentioning

confidence: 99%

Development of position-sensitive time-of-flight spectrometer for fission fragment research

Arnold

Tôvesson

Meierbachtol

et al. 2014

Nuclear Instruments and Methods in Physics Research Section A:

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“…Instead, they may be directly deduced as a function of fragment mass and total kinetic energy, from which the excitation energy may be inferred. Such a double time-of-flight (TOF) and energy spectrometer had already been realized in the 1980s at the Institute Laue Langevin and was called Cosi-Fan-Tutte [3]. With an impressive mass resolution ∆A well below 1 mass unit, it suffered from a very small geometrical efficiency of about 4 × 10 −5 [6].…”

Section: Epj Web Of Conferencesmentioning

confidence: 99%

“…This information may be obtained by means of different techniques. By using a recoil mass separator [2] or measuring the time-of-flight together with the kinetic energy [3] single fission-fragment yields after prompt neutron emission may be obtained. Employing the double-energy (2E) method, fission-fragment characteristics prior to neutron emission, the so-called pre-neutron masses A * and total kinetic energies, may be obtained, provided prompt neutron emission data are available for the iterative determination of the fragment mass [4,5].…”

Section: Introductionmentioning

confidence: 99%

Correlation measurements of fission-fragment properties

Oberstedt

Belgya

Billnert

et al. 2010

EPJ Web of Conferences

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Abstract. For the development of future nuclear fission applications and for a responsible handling of nuclear waste the a-priori assessment of the fission-fragments' heat production and toxicity is a fundamental necessity. The success of an indispensable modelling of the fission process strongly depends on a good understanding of the particular mechanism of scission, the mass fragmentation and partition of excitation energy. Experimental observables are fission-fragment properties like mass-and energy-distributions, and the prompt neutron as well as γ-ray multiplicities and emission spectra. The latter quantities should preferably be known as a function of fragment mass and excitation energy. Those data are highly demanded as published by the OECD-NEA in its high priority data request list. With the construction of the double (v, E) spectrometer VERDI we aim at measuring pre-and post-neutron masses directly and simultaneously to avoid prompt neutron corrections. From the simultaneous measurement of pre-and post-neutron fissionfragment data the prompt neutron multiplicity may then be inferred fully correlated with fragment mass yield and total kinetic energy. Using an ultra-fast fission event trigger spectral prompt fission γ-ray measurements may be performed. For that purpose recently developed lanthanum-halide detectors, with excellent timing characteristics, were coupled to the VERDI spectrometer allowing for a very good discrimination of fission γ-rays and prompt neutrons due to their different time-of-flight.

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A mass spectrometer for fission fragments based on time-of-flight and energy measurements

Cited by 52 publications

References 22 publications

15 Fission Fragment Mass, Charge and Energy Distributions

15 Fission Fragment Mass, Charge and Energy Distributions

Development of position-sensitive time-of-flight spectrometer for fission fragment research

Correlation measurements of fission-fragment properties

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