Hello again, In Joseph DiVerdi's coincidence circuit shown on the group home page under 'electronics,' positive pulses from the GM's are put through the ...
Hi Daniel! ... Yes. The inverters are just used for pulse shaping and as you correctly said, 2 are used to have a positive pulse again. ... Yes #2. Better use...
... Dan, As Hannes has already noted, it is, in principle, OK to omit one of the inverters to accommodate the interface your are using to your PMT. However,...
Joseph DiVerdi
diverdi@...
Aug 2, 2005 1:52 am
388
Thanks for the quick reply. You really stay on top of things! ... Electron tubes 931B's (the ones with the side facing active area). They also supply a power...
... input. ... negative going (which is a direction). Where (what voltage) is it starting from? What is the voltage (referenced to ground) at its most negative...
Dan, I'm sorry but I'm totally confused about what you are using for hardware and what configuration it is in. If you could provide a schematic of the...
Joseph DiVerdi
diverdi@...
Aug 3, 2005 3:54 am
391
... hardware and what configuration it is in. If you could provide a schematic of the scintillation detector with power supplies and measured voltages then it...
Hi, Here in northeast Kansas a sensitive Geiger counter gives me routinely a counts per minute of about 21. This is less than .02 mR/hr. My problem is to...
Hi Bill! ... See "Galactic cosmic rays (GCR) vs. solar cosmic rays (SCR)!" http://www.cosmicrays.org/muon-rays.php ... AFAIK, Xray bursts cannot produce...
Hi Dan! Your board seems to be the same as the one, which schematic is in the PDF here: http://www.lbl.gov/abc/cosmic/ How to Build a Detector * Instruction...
Thank you for your helpful comments and web sites, Hannes-- Bill Winkler Hannes Mayer <captain@...> wrote: Hi Bill! ... See "Galactic cosmic rays (GCR)...
Fresh from the cool-stuff-at-CERN-dept.: Going to the school of muons http://bulletin.cern.ch/eng/articles.php?bullno=34/2005&base=art#Article2 Best regards, ...
Interesting article about amateur-professional cooperation. And CERN has been even more important to U.S. particle scientists since the Supercollider in Texas...
... www.wires.co.uk are offering 0.050 mm bare copper wire in 50g lots for £11 ex VAT & postage. I'm new to this group, my interest having been triggered by...
Hi Eric! ... Do you mean in terms of corrosion ? I've thought about this too. Maybe the copper wire patina will affect the properties of the flat detectors. I...
Yes - my thought exactly. But I have no idea. ... From: Hannes Mayer <captain@...> To: particledetector@yahoogroups.com Subject: Re: [particledetector]...
... Maybe someone got an idea about the wire in GM tubes ? Well, on the other hand the wire inside a GM tube is protected by the gas mixture anyway. I guess...
Hannes Does running at normal air pressure work? I haven't paid attention to the list in awhile - so, do you have that working? Eric al Message --- From:...
A couple of idle thoughts Does working at normal air pressure mean you're using air? This has at least two drawbacks to my mind: 1) The corona near the wire...
Hi Charles! ... Yes, normal air at normal pressure. ... Have not considered this so far... Well, this probably means that the flat detectors are not suitable ...
... I may be totally off but here's what I'm thinking. Some circuit breakers -- big ones like the power company uses for the grid -- were filled with a sulfur...
Hannes, With a bit of web seraching I found a quote describing what I remembered about SF6. "...It happens that Fluorides, such as Uranium Hexafluoride and...
[BCC to all lecturer of the Amateur Astronomy Conference] Posted to: RadioJove - Jupiter Radio Astronomy - Maillist @ http://radiojove.gsfc.nasa.gov/ ...
Hi all! FYI: I discovered a new company for high-voltage modules: http://www.spellmanhv.com They have very neat modules - I just ordered a MM1.5N1.5/12 ...
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