Search found 108 matches

by Conor Whyte
24 Mar 2021, 12:15
Forum: Detector drivers
Topic: Gamma spectroscopy with a Raspberry Pi 4B
Replies: 0
Views: 1158

Gamma spectroscopy with a Raspberry Pi 4B

I just wanted to share a little something that I have been working on, this being a credit card sized spectroscopy system that could placed on the back of a monitor and used as a networked pulse processor. Today I flashed a distro of Android 11 onto the Rpi and ran the latest version of InterSpec fl...
by Conor Whyte
20 Mar 2021, 11:21
Forum: Detector drivers
Topic: Red Pitaya MCA
Replies: 32
Views: 11179

Re: Red Pitaya MCA

I just made a modification to the Red Pitaya MCA program to add more options for bins. We now have 1028,2048,4096,8192 and 16K bin options available. Modifications below in code. You will need to modify the index.html file in the MCA folder. <!-- * * Red Pitaya Template Application * * * (c) Red Pit...
by Conor Whyte
12 Nov 2020, 19:23
Forum: Detector drivers
Topic: Red Pitaya MCA
Replies: 32
Views: 11179

Re: Red Pitaya MCA

Looks like a good CSA chip. The stats for the uCSA by micod are about the same ~10-12.2mVpp range.
by Conor Whyte
12 Nov 2020, 06:25
Forum: Detector drivers
Topic: Red Pitaya MCA
Replies: 32
Views: 11179

Re: Red Pitaya MCA

Do you have a picture of the preamp? I was thinking perhaps of moving to a one of these
HV PSU and a custom PMT preamp boards by Micod in Russia.
by Conor Whyte
20 Sep 2020, 04:32
Forum: Detector drivers
Topic: Red Pitaya MCA
Replies: 32
Views: 11179

Re: Red Pitaya MCA

It's perfect in a classroom too.
by Conor Whyte
19 Sep 2020, 17:13
Forum: Detector drivers
Topic: Red Pitaya MCA
Replies: 32
Views: 11179

Re: Red Pitaya MCA

Once you set up interspect, it will hold the previous calibration auto identifying the new sample. Quite useful.
Interspect will also run on ARM processors. I am able to ID isotopes from my Red Pitaya via my iphone with interspec.
by Conor Whyte
17 Sep 2020, 12:14
Forum: Detector drivers
Topic: Red Pitaya MCA
Replies: 32
Views: 11179

Re: Red Pitaya MCA

You are using a positive input? What about your baseline?
Mine was set to automatic baseline.... I think there is some quirkiness to this software due to Java.

What will you use for the HV supply?
by Conor Whyte
14 Sep 2020, 03:41
Forum: Detector drivers
Topic: Red Pitaya MCA
Replies: 32
Views: 11179

Re: Red Pitaya MCA

Using the Gamma spectacular as a HV source and an iRad labs splitter the incoming voltage is right within the 0-1V range and works (as you've suggested) The first program ( the one you are showing here, MCA) is written by a local astrophysicist, Will Thompson who lives/lived in Victoria B.C. btw, ho...
by Conor Whyte
12 Sep 2020, 17:20
Forum: Detector drivers
Topic: Red Pitaya MCA
Replies: 32
Views: 11179

Re: Red Pitaya MCA

Both programs have source codes on Github and are 100% modifiable. The author of the last program -MCPHA doesn't seem to understand wanting scalable bins and argued with me about not adding such a function in. He is under the impression that 16K bins is better than 4096 or 2048.... Anyways, maybe we...
by Conor Whyte
02 Sep 2020, 11:30
Forum: Detectors
Topic: First Test of SiPm Detector
Replies: 8
Views: 3198

Re: First Test of SiPm Detector

Wow, that is super cool! Very good efficiency for that tiny a crystal. I wonder what would happen you coupled the output to a RedPitaya?