BRAHMMA: A compact experimental accelerator driven subcritical facility using D-T/D-D neutron source

Sinha, Alok; Roy, Tushar; Kashyap, Yogesh; Ray, Nirmal; Shukla, Mayank; Patel, Tarun; Bajpai, Shefali; Sarkar, Partha Sarathi; Bishnoi, Saroj; Adhikari, P.

doi:10.1016/j.anucene.2014.09.009

Cited by 24 publications

(4 citation statements)

References 13 publications

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“…The experimental setup consists of an external neutron source, BRAHMMA subcritical system (Figure 1(b)), 3 He detectors and data acquisition system. In case of noise experiments with Poisson source, an Am-Be neutron source (1Ci) has been placed at the centre of the subcritical system.…”

Section: Methodsmentioning

confidence: 99%

“…The third part of the setup consists of 3 He detectors (Nos. : 8, active length: 100 mm, diameter: 25mm) followed by preamplifiers.…”

Section: Icenes-2019mentioning

confidence: 99%

“…However, another parallel approach can be made for early introduction of Thorium in Indian nuclear power programme by using Accelerator Driven Subcritical (ADS) system. The physics study on subcritical reactor is being carried out in Bhabha Atomic Research Centre (BARC), India through the development of a zero power subcritical system namely BRAHMMA (BeO Reflected And HDPe Moderated Multiplying Assembly) [3].…”

Section: Introductionmentioning

confidence: 99%

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Noise experiments in BRAHMMA subcritical system using isotopic Poisson source and accelerator based neutron source

Ray

Kumar

Patel

et al. 2022

J. Phys.: Conf. Ser.

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Reactivity measurement using noise methods have been carried out in zero power subcritical system BRAHMMA, installed in BARC, India. During noise experiments, an Am-Be neutron source (1Ci) has been placed at the centre of the subcritical system. However, the proposed external neutron source in ADS, based on particle accelerator, is different from isotopic neutron source and the inherent fluctuations in beam current and accelerating voltage makes the source non-Poisson. In this context, Degweker and Rana had postulated a noise theory based on exponentially correlated Gaussian source characteristics for ADS. In noise experiments based on this postulate, a D-T neutron generator has been used in pulsed mode and source characterisation has been carried out to determine the distribution function, source correlation factor and D+ beam pulse shape. It has been observed that the source is Gaussian in nature, the source correlation factor is very large compared to the prompt neutron decay constant and the pulsed D+ beam is rectangular in shape. In noise experiments, the time stamped data have been analysed using various noise methods. The measured prompt neutron decay constant using Poisson source and correlated Gaussian source are in good agreement with theoretical value and amongst them.

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Section: Methodsmentioning

confidence: 99%

“…The third part of the setup consists of 3 He detectors (Nos. : 8, active length: 100 mm, diameter: 25mm) followed by preamplifiers.…”

Section: Icenes-2019mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Noise experiments in BRAHMMA subcritical system using isotopic Poisson source and accelerator based neutron source

Ray

Kumar

Patel

et al. 2022

J. Phys.: Conf. Ser.

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“…This is the more economical choice between the two target material options. For Sinha et al, the maximum attained neutron yield for their accelerator using the D-D reaction was 10 8 n/s [13]. The deuterons were accelerated to energies between 0 and 300 keV to induce the TiD target interaction.…”

Section: Acceleratorsmentioning

confidence: 99%

Design, Construction, and Modeling of a²⁵²Cf Neutron Irradiator

Anderson

Holbert

Bowler

2016

Science and Technology of Nuclear Installations

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Neutron production methods are an integral part of research and analysis for an array of applications. This paper examines methods of neutron production, and the advantages of constructing a radioisotopic neutron irradiator assembly using252Cf. Characteristic neutron behavior and cost-benefit comparative analysis between alternative modes of neutron production are also examined. The irradiator is described from initial conception to the finished design. MCNP modeling shows a total neutron flux of 3 × 105 n/(cm2·s) in the irradiation chamber for a 25 μg source. Measurements of the gamma-ray and neutron dose rates near the external surface of the irradiator assembly are 120 μGy/h and 30 μSv/h, respectively, during irradiation. At completion of the project, total material, and labor costs remained below $50,000.

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Major Experimental Facilities for Development of Accelerator-Driven Subcritical System

Verma

Katovsky

2018

Spent Nuclear Fuel and Accelerator-Driven Subcritical Systems

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BRAHMMA: A compact experimental accelerator driven subcritical facility using D-T/D-D neutron source

Cited by 24 publications

References 13 publications

Noise experiments in BRAHMMA subcritical system using isotopic Poisson source and accelerator based neutron source

Noise experiments in BRAHMMA subcritical system using isotopic Poisson source and accelerator based neutron source

Design, Construction, and Modeling of a²⁵²Cf Neutron Irradiator

Major Experimental Facilities for Development of Accelerator-Driven Subcritical System

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BRAHMMA: A compact experimental accelerator driven subcritical facility using D-T/D-D neutron source

Cited by 24 publications

References 13 publications

Noise experiments in BRAHMMA subcritical system using isotopic Poisson source and accelerator based neutron source

Noise experiments in BRAHMMA subcritical system using isotopic Poisson source and accelerator based neutron source

Design, Construction, and Modeling of a252Cf Neutron Irradiator

Major Experimental Facilities for Development of Accelerator-Driven Subcritical System

Contact Info

Product

Resources

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Design, Construction, and Modeling of a²⁵²Cf Neutron Irradiator