![File:Plasma source.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Plasma_source.jpg/450px-Plasma_source.jpg)
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Summary
DescriptionPlasma source.jpg |
English: This image shows the plasma created in a vacuum chamber, the ions created are then extracted and sent through a beam line experiment. The setup uses differential pumping: the site where the plasma is created (pictured) is at about 5 orders of magnitude more pressure than the site of collection. This allows for both the pump and the plasma generator to function well (the plasma generator works optimally at higher pressure; to learn more about this, look up 'Paschen's Law'). You can also think about the following: if the pressure is too low (too few ions in the given volume), then the voltage necessary will be much higher. The unused ions are collected with a faraday cup, letting only a small beam of ions through, the equivalent of 1-10 nA. |
Date | |
Source | Own work |
Author | Driveraorona |
Camera location | 42° 21′ 39.19″ N, 71° 05′ 31.29″ W ![]() ![]() | View this and other nearby images on: OpenStreetMap | ![]() |
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Licensing
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This file was uploaded as part of Wiki Science Competition 2023. |
Captions
Image from plasma source at nuclear physics lab at MIT.
Items portrayed in this file
depicts
some value
5 May 2023
42°21'39.190"N, 71°5'31.290"W
0.03225806451612903225 second
1.6
5.1 millimetre
640
image/jpeg
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:10, 19 November 2023 | ![]() | 3,024 × 4,032 (515 KB) | Driveraorona | Uploaded own work with UploadWizard |
File usage
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Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer | Apple |
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Camera model | iPhone 13 |
Exposure time | 1/31 sec (0.032258064516129) |
F-number | f/1.6 |
ISO speed rating | 640 |
Date and time of data generation | 15:54, 5 May 2023 |
Lens focal length | 5.1 mm |
Latitude | 42° 21′ 39.19″ N |
Longitude | 71° 5′ 31.29″ W |
Altitude | 3.772 meters above sea level |
JPEG file comment | Optimized by JPEGmini 3.18.17.230625896-TBTBLNP 0x1d6d8e5e |
Orientation | Rotated 90° CCW |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | 16.3.1 |
File change date and time | 15:54, 5 May 2023 |
Exposure Program | Normal program |
Exif version | 2.32 |
Date and time of digitizing | 15:54, 5 May 2023 |
Shutter speed | 4.9511165577342 |
APEX aperture | 1.3561438092556 |
APEX brightness | −1.9539661403842 |
Exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 713 |
DateTimeDigitized subseconds | 713 |
Color space | Uncalibrated |
Sensing method | One-chip color area sensor |
Scene type | A directly photographed image |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 26 mm |
Speed unit | Kilometers per hour |
Speed of GPS receiver | 0.64 |
Reference for direction of image | Magnetic direction |
Direction of image | 291.66360468799 |
Reference for bearing of destination | Magnetic direction |
Bearing of destination | 291.66360468799 |
GPS date | 5 May 2023 |
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