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Hi Beindaz: 10 KV for electromagnets? Electromagnets usually have low voltage and lots of current. Wire wound around a core to make an electromagnet needs isolation between each winding and connecting a coil with a few ohms of resistance to a 10KV supply would make a good fuse blowing...

Hi Morgothia: I know something about electron beams in linear accelerators. Is this what you are asking about. Thanks Linacman

Thanks for this additional input, frankeng9 and for taking the time to post it. I am amazed at the expertise available here. I have a system working now, although I think I'll need to add two more solenoids to provide enough power to pull what I need to move. It ran for a good long test...

Hi Arlington: Check the NTE website (just search for NTE). "C5353" gives replacement NTE2339 (high voltage NPN transistor). No luck with the second number. regards, linacman

Thanks for the explanation, BrianG. It makes perfect sense, even to me! Component level stuff is my weakness and I've been in management too long. Two strikes against me on this little project. (Did you get your premature failing magnetron sorted out?) Note to OperaHouse: Thanks for your...

Thanks for the replies from everyone: To xxyz: My SSR is one which runs on DC voltages. There are not many available but I found one. To CarlPugh: I'm not sure why the diode will change the release time of the solenoid. It will drop the switching voltage by a half a volt. The intent is to...

I need to pulse a pair of 12vDC solenoids at about 500 strokes per minute. I can use a 555 timer to drive a solid state relay but am concerned that voltage spikes coming back from the solenoids will damage the SSR. The solenoids draw 4amps and my SSR is rated for 10A. Are simple diodes enough...

Hi diacetim: I am sorry you are down. Probably everyone has had a manager at some time who knows less than they do. My view is--"What is so wrong with that?" It could make you look good! Remember that the manager's role is to bring out the best in the people who work for them...

Hi BrianG If it ran OK for ten hours, then you did OK at running it in. I have always used the "drive it until it arcs and then back off approach" After about two high voltage hours we usually find the thing is happy to be at the power level we require. There may be the odd arc for...

I would suggest infrared beams with the interlock switching relays magnetically shielded in a metal box or far enough away from the MRI so as to be safe from its field. regards linacman

You're welcome, BrianG. I'm happy to toss in my two cents worth. Our maggie supplier states in their documentation: "It may be desirable to operate the magnetron initially under reduced input conditions to clean up any gas that may be present and so reduce the risk of excessive arcing...

It is usual to run in a new magnetron for a couple of hours at lower power levels, increasing the power level over the run in time. You want to minimize arcing as you get up to your normal operating levels.

A periodic slow wave structure is really just a metal pipe which has "washers" spaced inside the length of it. Electromagnetic waves travel down the pipe and are slowed by the washers. This arrangement is a rudimentary linear accelerator, for accelerating particles to higher energy...