A study on neutron emission from a cylindrical inertial electrostatic confinement device

Buzarbaruah, N.; Mohanty, S. R.; Hotta, Eiki

doi:10.1016/j.nima.2018.09.076

Cited by 13 publications

(2 citation statements)

References 25 publications

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“…The potential structure and ion density plays an important role for the occurrence of a fusion reaction [12] (during higher voltage operations) in such devices; a detailed study of these profiles during lower cathode voltage conditions become equally important for a complete understanding of the underlying physics of the IECF scheme. In this work, we have studied the behavior of a potential well and ion density profiles in the gas discharge plasma [28,30,31] during a relatively lower cathode potential (up to −5 kV), in both 8 and 16 gridded system (see Sec. II for details), using the XOOPIC code [32] (X11-based object-oriented particle-in-cell).…”

Section: Introductionmentioning

confidence: 99%

Kinetic characteristics of ions in an inertial electrostatic confinement device

et al. 2020

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The kinetic analyses are quite important when it comes to understanding the particle behavior in any device as they start to deviate from a continuum nature. In the present study, kinetic simulations are performed using the particle-in-cell method to analyze the behavior of ions inside a cylindrical inertial electrostatic confinement fusion (IECF) device which is being developed as a tabletop neutron source. Here, the lighter ions, like deuterium, are accelerated by applying an electrostatic field between the chamber wall (anode) and the cathode (cylindrical gridded wire), placed at the center of the device. The plasma potential profiles obtained from the simulated results indicate the formation of multiple potential well structures inside the cathode grid depending upon the applied cathode potential (from −1 to −5 kV). The ion density at the core region of the device is found to be of the order of 10 16 m −3 , which closely resembles the experimental observations. Spatial variation of ion energy distribution function has been measured in order to observe the characteristics of ions at different cathode voltages. Finally, the simulated results are compared and found to be in good agreement with the experimental profiles. The present analysis can serve as a reference guide to optimize the technological parameters of the discharge process in IECF devices.

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Section: Introductionmentioning

confidence: 99%

Kinetic characteristics of ions in an inertial electrostatic confinement device

et al. 2020

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“…Since the development of the very first IECF device 11,12 , the researchers carried out geometrical and technical modification of the device in order to increase the neutron yield [13][14][15][16][17][18] , over the years. Recently, our team of researchers at CPP-IPR have a) Also at:Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra, 400094, India; Email:smruti@cppipr.res.in carried out experiments in the cylindrical IECF device with some success in neutron production and its application in explosive detection [19][20][21][22][23] .…”

Section: Introductionmentioning

confidence: 99%

Effect of Positive Polarity in an Inertial Electrostatic Confinement Fusion Device: Electron Confinement, X-ray Production, and Radiography

Bhattacharjee¹,

Mohanty²,

Adhikari³

2021

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Nondestructive and active interrogation system for special nuclear material: proof of principle and initial results

Bakr,

Masuda,

Takahashi

et al. 2024

NUCL SCI TECH

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Herein, we employ the threshold energy neutron analysis (TENA) technique to introduce the world's first active interrogation system to detect special nuclear materials (SNMs), including U-235 and Pu-239. The system utilizes a DD neutron generator based on inertial electrostatic confinement (IEC) to interrogate suspicious objects. To detect secondary neutrons produced during fission reactions induced in SNMs, a tensioned metastable fluid detector (TMFD) is employed. The current status of the system's development is reported in this paper, accompanied by the results from experiments conducted to detect 10 g of highly enriched uranium (HEU). Notably, the experimental findings demonstrate a distinct difference in the count rates of measurements with and without HEU. This difference in count rates surpasses two times the standard deviation, indicating a confidence level of more than 96% for identifying the presence of HEU. The paper presents and extensively discusses the proof-of-principle experimental results, along with the system's planned trajectory.

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A study on neutron emission from a cylindrical inertial electrostatic confinement device

Cited by 13 publications

References 25 publications

Kinetic characteristics of ions in an inertial electrostatic confinement device

Kinetic characteristics of ions in an inertial electrostatic confinement device

Effect of Positive Polarity in an Inertial Electrostatic Confinement Fusion Device: Electron Confinement, X-ray Production, and Radiography

Nondestructive and active interrogation system for special nuclear material: proof of principle and initial results

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