Recent content by jety89

It took me two month of painstakingly troubleshooting every detail, but, Today it finally worked. My detector complex is up and running, and, from what I saw, it is even better than previously, yippee!

I think it is settled then. First thing in the morning. It is now 00:13 where I live. Thanks a lot!

The general point is this: If you want to measure voltage, then the resistance of the voltmeter should be at least an order of magnitude larger than the resistance of the circuit. I happen to try to test a circuit of Gigaohm resistors armed with nothing more than a general purpose multimeter.

I had the (mis)fortune of not once, but many times discharging my high voltage bias supply myself, while I was trying to measure it, and it seems like I'm not there yet. I think I made a huge mistake. The bias supply, which is attached to the motherboard has a 36M resistor. My voltmeter was...

I thought You were supposed to measure the voltage between a given point in the circuit and the ground, which is what I did. But, alas, it turns out measuring high voltages in circuits with gigantic ohmages is trickier than I thought. Well, what do you know. I think I'll try to measure voltage...

Hi, I'm working on fixing a preamplifier connected to a semiconductor detector. The high voltage bias supply is working ok, and the preamplifier preamplifies. I've confirmed this with a digital oscilloscope and a square wave generator under many different regimes. The preamplifier components are...

So, there isn't mouch precedent, and it's probably impossible.

Hi, is it possible to prevent a diesel or gasoline engine from running with e.g. a smoke bomb or with some gaseous substance? Would it be practical?

(The following shouldn't be taken too seriously) I found this funny suggestion on an actual site, dealing with static electricity. "Next, use a DC high-voltage power supply with a large current-limiting series resistor to charge your body to 5,000 volts. ( EXTREME DANGER! You MUST limit the...

I think these answers fully cover my question. Thanks.

No worries, I *am* very methodical. I am at a point when I need advice from someone with senior experience with bias supplies, and with nuclear electronics with general. The HV seems to be present in a certain checkpoint in the circuit, when I raise it with the proprietary software, but it never...

That seems to be Waaay out of my budget. Bear in mind: I live in Ukraine, and this is leagacy hardware. Could I perhaps make a voltage divider myself? What would be the correct parameters for it?

Hi, I have a High Voltage supply on an integrated circuit board installed in a Pentium I computer, that (in theory) can give a 0-3200 V Bias Supply to a Germanium detector, and only 0-1000V multimeters to test with. I have a Soviet analog multimeter, a cheap new one (digital) and...

Thank you guys, You gave Me food for thought.

Hi, what is the physics experiment that leads to the position-momentum commutation relation xpx - px x = i hbar What does it mean to multiply the position and momentum operators of a particle? What is the corresponding physical quantity?