A simple method for measuring electron drift velocity in gases using grid ionization chamber

Zhang, Qingmin; Chen, Haizheng; Fan, Ruirui; Gao, Kaixiong; Shao, Zhuang; Guo, Wei

doi:10.1016/j.apradiso.2020.109496

Cited by 2 publications

(4 citation statements)

References 12 publications

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“…Meanwhile, an individual experiment with a compound alpha source was also carried out to validate the simulation, the experimental results of the anode pulse height changing with electric field showed good consistencies with the simulation results. The rise time of the cathode changed with the electric field was also investigated, which was agreed well with the results measured in the reference [3,4]. Furthermore, preliminary experiments with alpha source also showed that the energy resolution of this detector could achieve 68.40 ± 1.07 keV at 243 Am (5.39 MeV), and 69.67 ± 1.09 keV at 241 Am (5.49 MeV), which was comparable to other detectors of this design [28,35].…”

Section: Discussionsupporting

confidence: 87%

“…Moreover, when the absolute value of the cathode voltage under 900 V, the rise time of the cathode signal decreased obviously with the increase of voltage and then decreases slowly. The results are consistent with that measured in the literature [3,4] and calculated with Magboltz in Garfield [3].…”

Section: Performance Measurement Of Fgicsupporting

confidence: 92%

“…Frisch-grid ionization chambers (FGICs) have several advantages, such as high energy resolution, radiation hardness, and large detection efficiency. Therefore, they have been widely used in the nuclear physics, such as the identification of the light charged particles [1,2], the determination of electron transport parameters in gases [3][4][5][6], as well as the correlated measurement of fission fragments [7,8]. During the past few decades, the investigations on the fission progress with TFGIC have been remarkably restarted, driven by the needs for more accurate nuclear data for science and technology, such as the validation of new fission models [9][10][11], the disposal of nuclear waste using the interaction of energetic projectiles with fissionable nuclei, and prediction capability in the detection of special nuclear materials [12], as well as the improvement of the correlated fission codes, like CGMF and FREYA [13,14].…”

Section: Introductionmentioning

confidence: 99%

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Detection of correlated fission fragments with a twin Frisch-grid ionization chamber

et al. 2022

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Twin Frisch-grid ionization chambers (TFGICs) have been widely used in the measurement of total kinetic energy (TKE), angular distribution, mass, and charge of the correlated fission fragments. To study these correlated fission parameters, we have developed a TFGIC with a digital acquisition system for use at both the Chinese Mianyang research reactor (CMRR) and neutron science facility in the Institute of Nuclear Physics and Chemistry (INPC), as well as the China Spallation Neutron Source (CSNS). The distribution of the electric field was investigated with Garfield toolkit, the results showed that the ratio of the electric field of the collect region to the drift region (Ec /Ed ) must be greater than a critical value Z (1.78). An individual experiment, carried out with a compound alpha source (241Am and 243Am), was used to validate the preliminary performance of this detector. The effects of the electric field on the anode pulse height agreed well with the simulation results. Furthermore, the results also indicated that the energy resolution of (68.40 ± 1.07) keV at 5.39 MeV (243Am) and (69.67 ± 1.09) keV at 5.49 MeV (241Am) could be achieved. An initial in-beam fission experiment of 235U reaction with 14 MeV neutrons was also performed to test the setup, and the results showed that the reconstructed emission angle could achieve a resolution of 0.221 ± 0.002 on the difference of the cosines determined from both halves of TFGIC. The present work primarily reported the development of a TFGIC with a digital acquisition system in INPC.

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Section: Discussionsupporting

confidence: 87%

Section: Performance Measurement Of Fgicsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

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Detection of correlated fission fragments with a twin Frisch-grid ionization chamber

et al. 2022

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“…Due to their relative simplicity, versatility, and radiation hardness, Frisch grids ionization chambers (FGICs) have been widely used in nuclear physics, such as the measurement of fission fragments (FF) kinetic energy [1][2][3], the identification of light charged particles [4,5], and the determination of electron transport parameters in gases [6][7][8][9][10][11]. Frisch grids are used in the chamber for two distinct reasons.…”

Section: Introductionmentioning

confidence: 99%

Characterize the grid inefficiency correction of Frisch grid ionization chamber with Garfield and SRIM

Chen¹,

Peng²,

Sun³

et al. 2022

J. Inst.

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Grid inefficiency (GI) correction is critically important to accurately determine the energy and emission angle of charged particles in Frisch grid ionization chambers (FGIC). Presently, three correction methods have been proposed in the literature. All these three methods rely strongly on the accurate and stable calibration between two different electrical chain gains in experiments. To avoid these challenges, they are firstly investigated with Monte Carlo method by using Garfield and SRIM toolkit. Two types of grid wire (diameter 90 and 180 μm) were simulated to investigate the impacts of GI correction on energy correction, and ten different emission angles were adopted to estimate the effects of these correction methods on the angle reconstruction. The simulation results clearly distinguished the differences among these correction methods in energy determination. The correlation analysis (R = 0.99) among these different correction methods indicated that the impact of either correction approach is small on the determination of emission angle. The present work firstly investigates the effects of GI correction on emission angle with Monte Carlo methods, which is the basis of future work to measure the total kinetic energy and mass distribution of Fission Fragment (FF).

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A simple method for measuring electron drift velocity in gases using grid ionization chamber

Cited by 2 publications

References 12 publications

Detection of correlated fission fragments with a twin Frisch-grid ionization chamber

Detection of correlated fission fragments with a twin Frisch-grid ionization chamber

Characterize the grid inefficiency correction of Frisch grid ionization chamber with Garfield and SRIM

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