An experimental apparatus for Penning ion source research

Мамедов, Н. В.; Shchitov, N. N.; Kanshin, I. A.

doi:10.1134/s002044121606004x

Cited by 16 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The diffusion length in the aluminum walls of the detector can be written using the Fick's law [32,33] as:…”

Section: Modeling γ-Ray Fluxes At Sulmentioning

confidence: 99%

“…The decay constant of radon is λ=0.693/t 1/2 ∼2.31×10 -6 s -1 . F. Mamedov et al [32] used aluminum foil to calculate the diffusion coefficient of radon in aluminum to obtain a diffusion coefficient of ∼5.1×10 -11 cm 2 s -1 , which gives a diffusion length of ∼0.05 mm. Thus, the effective interaction zone in which (α,γ) reactions occur is the combination of radon diffusion length in aluminum and the average range of α particles in aluminum.…”

Section: Modeling γ-Ray Fluxes At Sulmentioning

confidence: 99%

See 1 more Smart Citation

Observation of annual modulation induced byγrays from (α,γ) reactions at the Soudan Underground Laboratory

et al. 2017

View full text Add to dashboard Cite

Annual modulation of γ rays from (α, γ) reactions in the Soudan Underground Lab has been observed using a 12-liter scintillation detector. This significant annual modulation, measured over 4 years, can mimic the signature for dark matter and can also generate potential background events for neutrinoless double-β decay experiments. The measured annual modulation of the event rate from (α, γ) reactions is strongly correlated with the time-varying radon concentration observed independently in the Lab. The α flux from radon decay is simulated starting from the measured radon concentration, and the γ-ray flux is determined using the convolution of the α flux and the cross sections for (α, γ) reactions. The calculated γ-ray flux is sufficient to generate the measured event rate that exhibits an annual modulation.

show abstract

“…The diffusion length in the aluminum walls of the detector can be written using the Fick's law [32,33] as:…”

Section: Modeling γ-Ray Fluxes At Sulmentioning

confidence: 99%

Section: Modeling γ-Ray Fluxes At Sulmentioning

confidence: 99%

Observation of annual modulation induced byγrays from (α,γ) reactions at the Soudan Underground Laboratory

et al. 2017

View full text Add to dashboard Cite

show abstract

“…8 In the experimental part, PIG and Penning discharge characteristics have been studied for various parameters such as the anode length, magnetic field, working-gas pressure, and so on. [9][10][11][12] In particular, the effect of the magnetic field, such as, the effect of configuration of magnetic field on the extracted ion current has been considered in the literature. 13 In some studies to avoid the complexities associated with results interpretation, the constant and uniform magnetic fields have been considered.…”

Section: Introductionmentioning

confidence: 99%

PIC-MCC analysis of electron multiplication in a cold-cathode Penning ion generator and its application to identify ignition voltage

2017

View full text Add to dashboard Cite

A cold-cathode Penning ion generator (PIG) has been developed in our laboratory to study the interaction of charged particles with matter. The ignition voltage was measured in the presence of the axial magnetic field in the range of 460-580 G. The performed measurements with stainless steel cathodes were in argon gas at pressure of 4 × 10−2 mbar. A PIC-MCC (particle-in-cell, Monte Carlo collision) technique has been used to calculate the electron multiplication coefficient M for various strength of axial magnetic field and applied voltage. An approach based on the coefficient M and the experimental values of the secondary electron emission coefficient γ, was proposed to determine the ignition voltages, theoretically. Applying the values of secondary coefficient γ leads to the average value of γM(V, B) to be = 1.05 ± 0.03 at the ignition of the PIG which satisfies the proposed ignition criterion. Thus, the ion-induced secondary electrons emitted from the cathode have dominant contribution to self-sustaining of the discharge process in a PIG.

show abstract

Investigation of Discharge Generation Regimes in Penning Ion Sources Under Pulse-Packet Control

et al. 2021

View full text Add to dashboard Cite

An experimental apparatus for Penning ion source research

Cited by 16 publications

References 5 publications

Observation of annual modulation induced byγrays from (α,γ) reactions at the Soudan Underground Laboratory

Observation of annual modulation induced byγrays from (α,γ) reactions at the Soudan Underground Laboratory

PIC-MCC analysis of electron multiplication in a cold-cathode Penning ion generator and its application to identify ignition voltage

Investigation of Discharge Generation Regimes in Penning Ion Sources Under Pulse-Packet Control

Contact Info

Product

Resources

About