1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Energy spectrum of argon ions emitted from Filippov type Sahand plasma focus
Rent:
Rent this article for
USD
10.1063/1.4813277
/content/aip/journal/rsi/84/7/10.1063/1.4813277
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/7/10.1063/1.4813277

Figures

Image of FIG. 1.
FIG. 1.

The Faraday cup geometry used in simulations. The secondary electron source is also shown in this figure.

Image of FIG. 2.
FIG. 2.

The variation of the escape factor versus the cup aspect ratio.

Image of FIG. 3.
FIG. 3.

The secondary electron escape factor versus incoming ion energy for different cup bias voltages resulted from the CST simulations.

Image of FIG. 4.
FIG. 4.

The image of the designed and constructed Faraday cup.

Image of FIG. 5.
FIG. 5.

Schematic diagram of the Sahand plasma focus device with the Faraday cup on the axis and PIN diode at the right angle of the cathode normal.

Image of FIG. 6.
FIG. 6.

Schematic diagram of Faraday cup external circuit used in the experiment.

Image of FIG. 7.
FIG. 7.

Typical signals of dI/dt, X-ray, and ion beams (recorded by FC) at the working pressure of 0.25 Torr. The FC is biased to −100 V.

Image of FIG. 8.
FIG. 8.

The peak of the ion signal and number flux per solid angle versus the applied bias voltage.

Image of FIG. 9.
FIG. 9.

SEE coefficient, γ, as a function of ion energy.

Image of FIG. 10.
FIG. 10.

The equilibrium to initial charge state of the argon ions, traveling the distance of 50 cm in the argon, as a function of the ion energy using the semi-empirical formula.

Image of FIG. 11.
FIG. 11.

Trajectories of ion transmission through the 5 μm mylar using TRIM code.

Image of FIG. 12.
FIG. 12.

(a) Typical signals of PIN diode, current derivative and filtered FC (b) transmission of X-ray through the mylar.

Image of FIG. 13.
FIG. 13.

Stopping power effect on the argon ion travelling 50 cm through the 0.25 Torr argon gas. (a) ion final energy and (b) ion range as a function of ion initial energy.

Image of FIG. 14.
FIG. 14.

The measured energy spectrum of the argon ions for different working gas pressures, taking into account the corrections related to ion stopping power and charge exchanges.

Image of FIG. 15.
FIG. 15.

The measured energy spectrum of the argon ions for different bank voltages taking into account the corrections related to ion stopping power and charge exchanges.

Tables

Generic image for table
Table I.

Characteristics of the designed and constructed Faraday cup.

Loading

Article metrics loading...

/content/aip/journal/rsi/84/7/10.1063/1.4813277
2013-07-16
2014-04-18
Loading

Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Energy spectrum of argon ions emitted from Filippov type Sahand plasma focus
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/7/10.1063/1.4813277
10.1063/1.4813277
SEARCH_EXPAND_ITEM