Particle emission angle determination in Frisch grid ionization chambers by electron drift-time measurements

Göök, A.Inst Kernphys, Tech Univ Darmstadt, Darmstadt, Germany; Akademin för Naturvetenskap och Teknik, Örebro Universitet, Örebro, Sweden (author)

QC 20240110
The double kinetic energy measurement of fission fragments with a double-sided Frisch grid ionization chamber allows a careful determination of the emission angle, which is essential in order to apply appropriate energy-loss corrections. We present a drift-time method, which uses the time that free electrons need to drift from the location of their creation, e.g. by a fission fragment in the counting gas, to the grid, before inducing a signal on the anode. Such a measurement leaves energy and angular information fully decoupled. We demonstrate the applicability of the drift-time method for the example of the 234,238U (γ,f) reactions performed at the superconducting Darmstadt electron linear accelerator. The angular resolutions achieved with this method are comparable to those obtained with other methods.

NATURVETENSKAP Fysik Acceleratorfysik och instrumentering hsv//swe
NATURAL SCIENCES Physical Sciences Accelerator Physics and Instrumentation hsv//eng
NATURVETENSKAP Fysik Subatomär fysik hsv//swe
NATURAL SCIENCES Physical Sciences Subatomic Physics hsv//eng
NATURVETENSKAP Fysik hsv//swe
NATURAL SCIENCES Physical Sciences hsv//eng
Angular distribution
Drift-time method
Fission fragment
Frisch grid ionization chamber
NUCLEAR REACTIONS: 234
238U (γ
f)
Photon-induced fission
Angular resolution
Electron drift
Electron linear accelerator
Emission angle
Energy measurements
Free electron
Frisch grids
Nuclear reactions
Particle emissions
Fission reactions
Ionization chambers
Nuclear energy
Nuclear reactors
Particle detectors
Photons
Time measurement
Ionization of gases
Physics
Physics

Chernykh, M.Inst Kernphys, Tech Univ Darmstadt, Darmstadt, Germany (author)
Enders, J.Inst Kernphys, Tech Univ Darmstadt, Darmstadt, Germany (author)
Oberstedt, AndreasÖrebro universitet,Akademin för naturvetenskap och teknik(Swepub:oru)aot (author)
Oberstedt, S.Inst Reference Mat & Measurements IRMM, EU Science Hub Joint Research Centre (JRC), Geel, Belgium (author)
Inst Kernphys, Tech Univ Darmstadt, Darmstadt, Germany; Akademin för Naturvetenskap och Teknik, Örebro Universitet, Örebro, SwedenInst Kernphys, Tech Univ Darmstadt, Darmstadt, Germany (creator_code:org_t)

In:Nuclear Instruments and Methods in Physics Research Section A: Elsevier BV621:1-3, s. 401-4050168-90021872-9576

By the author/editor: Göök, A.; Chernykh, M.; Enders, J.; Oberstedt, Andre ...; Oberstedt, S.

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Accelerator Phys ...

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Subatomic Physic ...

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