Measurements of the 234U(n,f) cross section using quasimonoenergetic beams in the keV and MeV range and a Micromegas detector assembly

Stamatopoulos, A.; Kanellakopoulos, A.; Kalamara, A.; Tsinganis, A.; Diakaki, Μ.; Kokkoris, M.; Michalopoulou, V.; Axiotis, M.; Lagoyannis, A.; Vlastou, R.

doi:10.12681/hnps.1971

Cited by 1 publication

(11 citation statements)

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“…𝐷 is the cathode and grid distance. 𝜎 is the GI factor which mainly depends on the 𝑝, 𝑟 and 𝑑 [22,23],…”

Section: Electron Drift and The Charge Inductionmentioning

confidence: 99%

“…The 𝜎 of the TFGIC model is calculated as 0.051. According to the Shockley-Ramo theorem, the corrected pulse heights of the anode and grid can be corrected as follow [21,23],…”

Section: Electron Drift and The Charge Inductionmentioning

confidence: 99%

“…Due to the energy-loss of FFs in the fission target, the peaks positions shift to left. The losses are more severe on the backing side, where the FFs travel through the more material [23]. The grid pulse height spectra are shown in figure 7b.…”

Section: The Pulse Height Spectrummentioning

confidence: 99%

“…A linear fit is applied to the data at 𝜃 = 90 • and a polynomial fit is for 𝜃 = 0 • at the half pulse height for each anode channel when 75 < 𝑃𝐻 𝐴 < 170 channels. According to the extraction of emission angle, cos 𝜃 can be expressed as [23],…”

Section: The Pulse Height Spectrummentioning

confidence: 99%

“…The 𝑋 𝐷 can be determined as the length of the distribution between 𝜃 = 0 • and 𝜃 = 90 • [15,23]. Using 𝑋 𝐷 , the cos 𝜃 is obtained by eq.…”

Section: The Pulse Height Spectrummentioning

confidence: 99%

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A method to simulate Twin Frisch-grid ionization chamber response to fission fragments

Liu¹,

Tao²,

Peng

et al. 2023

J. Inst.

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In this study, the response of a Twin Frisch-grid ionization chamber (TFGIC) to fission fragments (FFs) was investigated using finite element and Monte Carlo methods. The entire process of the fission experiments, including FFs generation, gas ionization, electron drift and collection, and induced charge signal were well reproduced. Through data analysis, pulse height spectra from the anode and grid were transformed into energy and emission-angle information for the FFs. By means of double energy method, the pre-neutron emission fission fragment mass and total kinetic energy (TKE) can be finally determined. Experimental and calculated data of the mass and TKE distribution are shown in good agreement.

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“…𝐷 is the cathode and grid distance. 𝜎 is the GI factor which mainly depends on the 𝑝, 𝑟 and 𝑑 [22,23],…”

Section: Electron Drift and The Charge Inductionmentioning

confidence: 99%

“…The 𝜎 of the TFGIC model is calculated as 0.051. According to the Shockley-Ramo theorem, the corrected pulse heights of the anode and grid can be corrected as follow [21,23],…”

Section: Electron Drift and The Charge Inductionmentioning

confidence: 99%

Section: The Pulse Height Spectrummentioning

confidence: 99%

Section: The Pulse Height Spectrummentioning

confidence: 99%

“…The 𝑋 𝐷 can be determined as the length of the distribution between 𝜃 = 0 • and 𝜃 = 90 • [15,23]. Using 𝑋 𝐷 , the cos 𝜃 is obtained by eq.…”

Section: The Pulse Height Spectrummentioning

confidence: 99%

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