Recent content by sam2212

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    Graduate Trouble Making a Penning Ion Source

    Not igniting as explosion. Like plasma. This happens in the tube. It's high vacuum no gases there. The plasma should happen inside the chamber not in the tube
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    Graduate Trouble Making a Penning Ion Source

    Hi I built penning ions source , works fine on lower vacuum, my issue is in high vacuum 1x10-4 or more, the plasma ignites in the supplied tube to the penning source not inside the chamber. Tried to isolate the gas supply with ceramic inlet, ( feedthrough metal metal => teflon tube=>ceramic...
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    PIG (Penning Ionization Gauge) Ion source

    Thanks for the reply. Now we start talking, let consider this beam on target. I asked a simple question why im having issue with plasma in high vacuum?
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    PIG (Penning Ionization Gauge) Ion source

    No issues. I will go down to 13.56MHZ frequency and I will prepare some snacks and tea. While your counterpart arrives , now where's the answer to my question .
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    PIG (Penning Ionization Gauge) Ion source

    Y I need it to be compact. Again I told what I have not using. I'm using my 70 to 100mhz , to be accurate 100mhz The worse what I can do is spoil someone's radio podcast. Now can you please use your super powers and answer my question
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    PIG (Penning Ionization Gauge) Ion source

    1- there is no high current: I'm using resistors I'm telling what I have not using. 2- who said im using cesium? 3- i need to build compact accelerator the more compact it is the better. Now back to my question?
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    PIG (Penning Ionization Gauge) Ion source

    Dear berkeman I'm an amateur in nuclear science. I built many things including fuser. I have multiple devices to measure radiation (gama, neutrons,xrays) im advanced amateur guy , I read a lot. My vacuum setup is 2 stage vacuum pump with turbomolecular pump High voltage Ac and dc do not exceed...
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    PIG (Penning Ionization Gauge) Ion source

    I'm aware of all these issues, the xrays are shielded The high voltage are covered. I'm not an idiot 😀
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    PIG (Penning Ionization Gauge) Ion source

    Well... long story,but im building homemade linear particals accelerator! ,60% done. The chamber ,the drift tubes, rf system....etc. Stuck somewhere in the ion source. I built ion source with a filament : and pig ion source. Testing which one is the best for my accelerator.
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    PIG (Penning Ionization Gauge) Ion source

    Hi I built pig ion source, the gas I'm using hydrogen gas to create negative ion . You can see ion source here: My question is why in high vacuum more than 10×3 mmpa the plasma disappear even is if gas is supplied? Thanks