Design of a linear neutron source

Buzarbaruah, N.; Dutta, Nirupam; Bhardwaz, J.K.; Mohanty, S. R.

doi:10.1016/j.fusengdes.2014.12.020

Cited by 19 publications

(5 citation statements)

References 29 publications

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“…Again, the angular momentum that the ions acquire due to Coulomb interaction and collision with the neutrals is not considered in the simulation. Buzarbaruah et al [28] tried to track the trajectory of the D + ions by performing simulations using the Simion code [29]. However, the limitation of the code did not allow us to create the plasma environment inside the system; rather, it could only provide the electric or magnetic field to observe the possible trajectories of ions.…”

Section: Introductionmentioning

confidence: 99%

“…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%

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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%

Section: Introductionmentioning

confidence: 99%

Kinetic characteristics of ions in an inertial electrostatic confinement device

et al. 2020

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“…The design of cathode grid is made by simulation (SIMION 8.0) results and grid wire after analyzing the recirculation of ions the wired frequency had been optimized at 8 and 16. The diameters of cylindrical cathode grid used in the present study are 2 and 3 cm, and the length of the cathode is 25 cm, respectively [19]. The chamber was evacuated using a turbo molecular pump (TMP) backed with a rotary pump and the pressure inside the chamber has been monitored using the cold and capacitance gauges.…”

Section: Experimental Set-up and Diagnosticsmentioning

confidence: 99%

“…In this paper, we discuss the parameters that are involved in the occurrences of fusion reactivity in the cylindrical IEC device that regulates the production rate of neutrons. In the first section, we tried to interpret the equations involved in defining the ion-neutral (beambackground) reaction regime that enhances the ion density profile and NPR from the device [19]. It has been reported earlier about the different reaction mechanisms of neutron productions such as beam-beam, beam-background, beam-cathode and fast-neutralbackground collisions [13,20].…”

Section: Introductionmentioning

confidence: 99%

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

Buzarbaruah

Mohanty

Hotta

2018

Nuclear Instruments and Methods in Physics Research Section A:

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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%