tom jobe wrote: Found it. 497-2442-1-ND from Digikey. And it was Denis who pointed out that you want a diode that is 35 ns or faster. I suppose that is subjective, and the newsgroups I have seen

I would like to thank Chuck , Dave and Jerry who all offered words of help over my power supply problem . I have fixed it . It was one of the capacitors in the power supply . The only place in the

Well I've replaced all of the power filter caps and replaced the regulators just so I could have a clean start and powered the unit up. Upon reading the service manual it specified that I should

After a short warmup a trace flashes across the screen when I turn the power off. Most of the power supply voltages are right on +/- 5, +/- 10, + 40 and +102 is +97. Snooping around I found a burnt

Sent: Saturday, October 28, 2006 5:30 AM Subject: Re: [TekScopes] Re: 519 as Nuc Phys 101 I Really do love this list. Please do not take any of this as being sarcastic, I for one truly

Yes, you're absolutely right. The voltages may be a bit higher (the initial stage of these power supplies often puts out 390 VDC which gets buck converted down into your 1.3V, 3.3V, 5V, etc.). There's

snapdiode wrote: Uhmmm? Cosmic rays are mostly high energy protons, *not* photons. They come crashing into the gases in the atmosphere, and bust things up, leaving a variety of neutrons, protons,

Speaking for the accelerator 'community' - You betcha that (sufficiently energetic) alphas will 'transmute' nuclei. As will all the elements in the Periodic Table, at sufficient K.E. (think: 'heavy

Spallation is an interesting word. The same root is used in Spall, which are shards of rock in mining, and Spalling, where for example an overloaded bearing binds up when the balls break up, or a

Hello everybody: I have a TDS420A with the usual Fail++ Acq error at power up. Does anybody know if changing the electrolitic capacitors on the Acq board help? Or is there any other cure for

Kidding you? No, I am not. When a gamma of any energy hits an atom, it plays with the electrons. It can emit another gamma, or some other electron type of particle, but it will *not* turn the atom

Neither am I, but I *am* drunk enough to pretend to be one. So we have gamma transmutation, nuclear spallation, nuclear isomerism, cosmic-ray induced transmutation. I forgot about the stuff they do

im no high energy physics expert

LOL are you kidding me!? Prove that only neutrons can do it! A gamma ray with energy higher than the binding energy of a neutron in a nucleus can knock it out of the nucleus, transmuting the

i think the video camera repeater. and a monitor with a camera throgh some sort of link is probably how it was done

jvanderwall1941 wrote: In order to use the fast scope film, the scopes would have to be in a nearly perfectly shielded building, or the neutron and gamma ray blast would expose the film before anyone

wouldnt that high neutron flux fog the photographic film. the film might have been in a sealed holder that could be decontaminated before processing

Then they would become "radioactive isoSCOPES!!!!!!!!!!" Rex

I am not a physicist, but have had experiments on four UGTs. And yes, sometimes things get activated by neutron flux, and have to cool off before you can take them home. I recall waiting a couple

send me your updated list tnx 73s de, k9dta arthurok@...