Search found 85 matches

by Harald_Consul
Sat Mar 23, 2019 8:16 pm
Forum: Announcements and Site Administration Topics
Topic: web site problem
Replies: 18
Views: 12097

Re: web site problem

We had a similar "search engine problem" with the german statistics forum. The aggressive searching has stopped, as we agreeed to the terms of the domestic intelligence service, that certain parts of the forum should not be open to the public without login. (They wanna trace certain request back.) D...
by Harald_Consul
Wed Mar 20, 2019 6:00 pm
Forum: Advanced Technical Discussion Area
Topic: Python Simulation
Replies: 12
Views: 2853

Re: Python Simulation

Another beautiful possibility for numerical programming is R, which can be downloaded at https://cran.r-project.org/ . The advantages of R are Data formats are all the same through out all R Missings are handled all the same through out all R R installes out of the box an all operating systems R cod...
by Harald_Consul
Sat Mar 16, 2019 5:08 pm
Forum: Advanced Technical Discussion Area
Topic: Python Simulation
Replies: 12
Views: 2853

Re: Python Simulation

Just plug it into the thread using the "</>" Button or the BB-code tags

Code: Select all

[code]
PRG listing
[/code]
, so that anyone interested can view it.
by Harald_Consul
Fri Mar 15, 2019 7:51 pm
Forum: Advanced Technical Discussion Area
Topic: Python Simulation
Replies: 12
Views: 2853

Re: Python Simulation

If you are not planning a scientific publication of your "electric potential in a Farnsworth fusor simulation", it would be interesting to see the code. I am not too experienced in Python, but I do a lot of R programming (including simulation tasks, also). Usually a numerical code is easy to underst...
by Harald_Consul
Tue Feb 19, 2019 5:31 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: A semi-DIY preamplifier for radiation detectors
Replies: 28
Views: 17034

Re: A semi-DIY preamplifier for radiation detectors

Very interesting work Rich!

Just for the stupid guys. How much MHZ/ nanosec rise time is your from-scratch-preamplifier?
by Harald_Consul
Sat Feb 09, 2019 10:29 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Spectrum Recorder PCI-E Card?
Replies: 39
Views: 21176

Re: Spectrum Recorder PCI-E Card?

Just one final remark from my side. I've figured out, that my Hantek digi-scope effectively is a Linux computer. Thus, may be it is - on a maker basis - possible to construct an inexpensive "very high frequency recorder" by porting the Hantek Linux scope solution to a more potent mainboard with a PC...
by Harald_Consul
Fri Feb 08, 2019 4:05 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Spectrum Recorder PCI-E Card?
Replies: 39
Views: 21176

Re: Spectrum Recorder PCI-E Card?

After in depth study of Chris answers there is only one thing left:

Saying thank you to Chris for his imho high quality answer and to all the others, who mentioned a lot of major ideas before.
by Harald_Consul
Wed Feb 06, 2019 6:46 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Spectrum Recorder PCI-E Card?
Replies: 39
Views: 21176

Re: Spectrum Recorder PCI-E Card?

Thanks for your insights into physics topics. I do not doubt, I am maybe sometimes like a little child in these physics things, as I am a statistician (not a physcists). However, on the other side it may also be interesting for you physicists how a statistician is planning to deal with the piled up ...
by Harald_Consul
Tue Feb 05, 2019 11:51 am
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Spectrum Recorder PCI-E Card?
Replies: 39
Views: 21176

Re: Spectrum Recorder PCI-E Card?

The following picture from wikipedia aliasing article shows a sine funtion, that is undersampled: AliasingSines.svg.png So, if I sampled a periodic sine function with 2 or 2.5 times its frequency (to avoid aliazing), would that also invoke, that there are enough samples (data points) to reconstruct...
by Harald_Consul
Mon Feb 04, 2019 5:32 pm
Forum: Neutrons, Radiation, and Detection (& FAQs)
Topic: Spectrum Recorder PCI-E Card?
Replies: 39
Views: 21176

Re: Spectrum Recorder PCI-E Card?

Just for info: I've got a 250 MHZ 1GSample/s digital oscilloscope with data export functionality. However the maximum #samples is very limited. 48k samples or so. Ok, lets do some digestion of your advices now: You say, to sense a periodic signal (e.g. sinus signal) a sample rate of 2,5 times the fr...