Analysis of internal charge distribution in electron irradiated polyethylene and polyimide films using a new experimental method

Perrin, C.; Griseri, V.; Inguimbert, C.; Laurent, Christian

doi:10.1088/0022-3727/41/20/205417

Cited by 38 publications

(20 citation statements)

References 17 publications

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“…Considering experiments, Perrin et al [16] have developed two new Pulsed Electro-Acoustic set-ups in order to measure the space charge distribution in solid dielectrics during irradiation: an 'open circuit' PEA where the irradiated face of the sample is at a floating potential, and a 'short-circuit' PEA where the sample is provided with two electrodes being grounded. Evidences have been given on the presence of positive charges during electron beam irradiation on a 500 µm thick LDPE [5,16]. We recall these evidences in the following: - Figure 1 (taken from [5]) shows the space charge distribution for different irradiation times (0-36 min), measured on a 500 µm thick LDPE with the 'open circuit' PEA under irradiation with an electron beam of 200 keV energy and a flux of 50 pA.cm -2 .…”

Section: Theoretical Background and Evidence Of Bipolar Processesmentioning

confidence: 99%

“…Evidences have been given on the presence of positive charges during electron beam irradiation on a 500 µm thick LDPE [5,16]. We recall these evidences in the following: - Figure 1 (taken from [5]) shows the space charge distribution for different irradiation times (0-36 min), measured on a 500 µm thick LDPE with the 'open circuit' PEA under irradiation with an electron beam of 200 keV energy and a flux of 50 pA.cm -2 . After 24 min of irradiation, a positive charge density is observed at the vicinity of the ground electrode, which can be differentiated from the image charge.…”

Section: Theoretical Background and Evidence Of Bipolar Processesmentioning

confidence: 99%

“…It has been interpreted as resulting from the injection of positive charges at the ground electrode driven by the field generated by the implanted electrons. charges are observed (replotted from [5] with the permission of the authors).…”

Section: Theoretical Background and Evidence Of Bipolar Processesmentioning

confidence: 99%

“…For sake of simplicity, study of the model sensitivity to parameters linked to the irradiation is performed with symmetrical transport parameters for positive and negative carriers as given in table 1, unless otherwise stated. Simulations concern experimental results obtained on a 500 µm thick LDPE sample irradiated in a direction perpendicular to the sample plane by a 200 keV electron beam with a homogeneous flux of 50 pA.cm -2 during 36 min (experimental conditions used in [5]). Measurements were performed with a PEA set-up in the "open configuration", i.e.…”

Section: Model Behaviour and Sensitivity Analysismentioning

confidence: 99%

“…Some are experimental, measuring the surface potential of the irradiated samples, the current flow during irradiation [2] and the space charge distribution after irradiation [3]. Recently, two original set-ups [4][5] to measure space charge distribution in electronbeam irradiated samples have been developed on the basis of the Pulsed Electro-Acoustic (PEA) method. With these experimental tools, it is now possible to observe the dynamic of charging and discharging in electron-beam irradiated materials.…”

Section: Introductionmentioning

confidence: 99%

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Charge transport modelling in electron-beam irradiated dielectrics: a model for polyethylene

Roy¹,

Baudoin²,

Griseri³

et al. 2010

J. Phys. D: Appl. Phys.

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This paper proposes a numerical model for describing charge accumulation in electron-beam irradiated low density polyethylene. The model is bipolar, and based on a previous model dedicated to space charge accumulation in solid dielectrics under electrical stress. It encompasses the generation of positive and negative charges due to the electron beam and their transport in the insulation. A sensitivity analysis of the model to parameters specific to electron beam irradiation is performed in order to understand the impact of each process on the space charge distribution. At last, a direct comparison between time dependent space charge distribution issued from the model and from measurements is performed. The transport parameters used for the simulations are the same as those optimized for transportation in polyethylene under an external electric field giving a robustness in the modelling approach because of the constrains on fitting parameters that must comply to a set of experimental results.PACS Numbers: 72.20Ht, 72.20Jv 1. Introduction Solid dielectrics used as thermal blanket on geostationary satellites are submitted to the flow of several types of charged particles, and particularly to electrons. These materials can accumulate charges, building up the potential inside the dielectric, meaning a potential difference between different parts of the satellite. Electrostatic Surface Discharge (ESD) can occur, leading to possible damages of the electronics of the satellite [1]. In order to prevent such ESD to happen, it is necessary to understand the dynamics of the charge transport in solid dielectrics used in space environment. A number of studies have been carried out in this domain. Some are experimental, measuring the surface potential of the irradiated samples, the current flow during irradiation [2] and the space charge distribution after irradiation [3]. Recently, two original set-ups [4-5] to measure space charge distribution in electronbeam irradiated samples have been developed on the basis of the Pulsed Electro-Acoustic (PEA) method. With these experimental tools, it is now possible to observe the dynamic of charging and discharging in electron-beam irradiated materials. On the other hand, a number of works on theoretical background and simulation has been done in order to understand and reproduce the behaviour of charge in electron beam irradiated polymers [6][7][8][9]. Our very aim is to develop space charge modelling in electron beam irradiated materials in nonstationary conditions through an approach that closely associates experiment and numerical simulation. Within the first part of this paper, we briefly review the state-of-the-art on modelling charge transport in synthetic insulations under electron beam irradiation in order to establish the position of our approach. Then, we describe the proposed model, which has been adapted from a previous one [10] developed for space charge conduction in a Low Density Polyethylene (LDPE) under DC stress. The same set of transport parameters has b...

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Section: Theoretical Background and Evidence Of Bipolar Processesmentioning

confidence: 99%

Section: Theoretical Background and Evidence Of Bipolar Processesmentioning

confidence: 99%

Section: Theoretical Background and Evidence Of Bipolar Processesmentioning

confidence: 99%

Section: Model Behaviour and Sensitivity Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Charge transport modelling in electron-beam irradiated dielectrics: a model for polyethylene

Roy¹,

Baudoin²,

Griseri³

et al. 2010

J. Phys. D: Appl. Phys.

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Preparation of Dinitrogen Trioxide for Organic Synthesis: A Phase Equilibrium Approach

Chen,

Monbaliu

2024

Chemistry A European J

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Dinitrogen trioxide (N2O3) is a potent nitrosating agent featured with high reactivity and appealing atom economy. Because of its instability and the entanglement of chemical and phase equilibria, N2O3 has rarely been utilized in organic synthesis as a stock reagent with well‐defined composition. In this review, the preparations of pure N2O3 and its concentrated solution (> 0.1 M) are discussed from the aspect of phase equilibrium. Understanding the physical and chemical characteristics of N2O3, along with how reaction parameters (temperature, pressure, molar ratio) interact, plays a crucial role in managing the concentration of N2O3 in the liquid phase. This control holds practical significance in achieving quantitative reactions.

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Space charges remaining in polymers after electron beam irradiation and the role of conductivity in their decay profiles

Tomite

Arai

Ohki

et al. 2015

IEEJ Transactions Elec Engng

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Five typical insulating polymers and a carbon‐loaded polyethylene were irradiated with 200‐keV electrons, and the space charge distributions remaining in the polymers were measured. When the polymer film is short‐circuited after irradiation, the amount of space charge gradually decreases monotonically. By analyzing such decay profiles, it becomes clear that the decay of the charges remaining after the irradiation is governed by the conductivity of the polymer. © 2015 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

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Analysis of internal charge distribution in electron irradiated polyethylene and polyimide films using a new experimental method

Cited by 38 publications

References 17 publications

Charge transport modelling in electron-beam irradiated dielectrics: a model for polyethylene

Charge transport modelling in electron-beam irradiated dielectrics: a model for polyethylene

Preparation of Dinitrogen Trioxide for Organic Synthesis: A Phase Equilibrium Approach

Space charges remaining in polymers after electron beam irradiation and the role of conductivity in their decay profiles

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