The solid rectangle on the left side is the beam propagation region, and the line x = 0 is a symmetry axis here. The intersecting line segment is drawn perpendicular to the cathode because we expect the electric field to point in this direction. So, for a more practical model, we draw another line that intersects both the cathode and anode, then use the Convert to Solid operation in COMSOL Multiphysics® to form a domain bounded by these curves. These two lines could be extended infinitely far but would never meet. In the following plot, the long straight line is the cathode, and the long curved line above it is the anode. The anode curve found in the previous section asymptotically approaches the cathode line but never quite meets it the perfect Pierce electron gun extends infinitely far in the positive x direction, so we have to arbitrarily cut it off at some point. Creating the COMSOL Multiphysics® Geometry Therefore, the Pierce gun design algorithm predicts that a beam can be kept perfectly straight using a straight cathode at a 67.5° angle from the beam propagation direction, and a curved anode. The force exerted on particle 1 by particle 2 is given by Coulomb’s law, Consider two charged particles at positions r 1 and r 2, with charges q 1 and q 2. Force Between Two Charged ParticlesĪll of the emitted beam electrons exert repulsive forces on each other. One very simple means of acceleration is to send the beam through a metal grid held at a fixed electric potential. Often, the electrons are rather slow when they are first emitted from the cathode or plasma source, and then they get accelerated by external fields. Focus the beam at a particular location.Accelerate the electrons to a certain kinetic energy.Extract a sufficiently high number of electrons that is, get an adequate beam current.Here, we discuss modeling one of the earliest electrode configurations that was devised to counteract this electrostatic repulsion: the Pierce electron gun.Ī good electron gun design must be able to do the following: One of the main design challenges in building an electron gun is that the electrons repel each other, so the beam tends to spread out. The electron gun extracts electrons from a hot cathode or a plasma, then accelerates them to a high kinetic energy. That's it! Your Particle Electron Boron LTE device is all set up with a Telnyx SIM card.Electron guns are frequently used in cathode ray tubes, electron microscopes, spectrometers, and particle accelerators. You can also verify the connectivity by clicking on your device name in. It may take up to 2 minutes to reflect network connectivity. Once you connect your device into a power adapter, you'll connect to the Telnyx network. Repeat Step 6 to place your device into DFU mode and run this command to give back your device its control: The device will start using the Telnyx SIM card next time it reboots. This command will flash the firmware.bin on to the device. This command will create a firmware.bin file that you will tell the device to use the Telnyx SIM card. particle compile boron TelnyxSIM.cpp -saveTo firmware.bin.Repeat Step 6 to place your device into DFU mode.Īnd navigate to the saved location. This command allows your computer to control the device instead of the cloud. The device, by default, receives commands from the Particle Cloud via a network connection. This command updates the device's firmware (1.5.2 as of this guide). Then run the following commands in your CLI environment: Keep holding the "Mode" button until the device flashes yellow.Ĭonnect your device to the computer via the provided micro-USB cable. Press and hold the "Mode" button then press the "Reset" button once. This mode allows you to interact with the device using a computer. Set up CLI environment on your computer using this To begin, insert the Telnyx SIM card into the device. Now, let's enable third-party SIM capability on the device.
Particle electron api request tutorial trial#
Particle.io offers a 3-month free trial with limited free data. Your device will now activate its eSIM and you'll be able to see the device by logging into. Press the + button located at the top right of the page and select the device name (i.e. Log into your Particle.io account or create an account. Open the Particle Mobile Application and follow the on-screen instructions:
Particle electron api request tutorial install#
The device will automatically go into pairing mode.ĭownload and install the mobile application on your Instructions for setting up your Particle Boron LTE Kit:įirst, connect the LTE antenna to the port located in the front of the Particle Electron Boron device and connect the device to power.
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