ozel
commented
4 years ago Hi!
The loading of .msgp files is at the moment implemented in a somewhat confusing way. You only need to do two things:
Set the full path name to variable file_name in line 88 and comment the line 117 such that it is disabled:
# df = pd.read_pickle(.... It is either a pickle file or a .mgsgp file that needs to be loaded, not both.
The if statement in line 90 should not be changed at all.
I am in the process of updating this script with a more simplified loading of data files/folders and other improvements that I will hopefully upload soon.
But in in principle, you will run into the same issue as @SteveF161 since you are using the electron-detector.
Please have a look at this reply together with my later replies here: https://github.com/ozel/DIY_particle_detector/issues/10#issuecomment-691224857
I might add a set of different pulse processing parameters (THL, min_g, min_length, max_length) that allow to process electron-detector pulses if there is more interest. Maybe Steve already found good ones?
So far I have developed the analysis scripts only with the alpha-detector in mind which produces larger output pulses that the electron-detector.
In general, electrons from beta decays produce a continuous energy spectrum and the detector therefore cannot reveal characteristic energy lines. Unless you have a low-energy source of x-rays or mono-energetic electrons, recorded spectra will always look similar to this one from my Sensors paper, figure 7 b):
This is not a real characteristic peak as in an alpha energy spectrum. The left edge represents the lower minimum sensitivity threshold of the amplifier circuit and the right 'edge' is defined by the geometry/thickness of the sensor chip which limits the maximum recorded energy from electrons (or scattered gammas in few cases).
I did not know about the Thonny app. It seems like a great choice especially in an education context! Since it uses a modern python version, it should work well if all required modules are installed.
I will put it on my to-do list and try it out myself. Would be great if even the pulse_recorder.py script runs in it.
AlalaStorm
Dear Oliver, first of all excuse me if the answer is obvious. I'm trying to get some measurements with the electron-detector. I build it and used the web browser application to get the measurement data (named DIY_Particle_Detector_15-pulses_2020-09-06_19-51.msgp), but i'm having troubles with the data analysis.
I'm not an expert on programming with python, and I normally use the Thonny app (i'm not sure if this is a problem). I open the analyse_and_plot_pulses.py, and write in the row 88 --> file_name = "C:/Users/Home/Desktop/DATA ANALISYS/data/DIY_Particle_Detector_15-pulses_2020-09-06_19-51.msgp" and in the next row --> if file_name is not "C:/Users/Home/Desktop/DATA ANALISYS/data/DIY_Particle_Detector_15-pulses_2020-09-06_19-51.msgp": Then in the row 117 --> df = pd.read_pickle("C:/Users/Home/Desktop/DATA ANALISYS/data/KCL_9-44g_1x3x3cm_touchingdiodecase_pulses_2019-07-08_23-07-1894711-47.pkl") Next I run the code but I get the next message error --> %Run analyse_and_plot_pulses.py Traceback (most recent call last): File "C:\Users\Home\Desktop\DATA ANALISYS\analyse_and_plot_pulses.py", line 117, in
df = pd.read_pickle("C:/Users/Home/Desktop/DATA ANALISYS/data/KCL_9-44g_1x3x3cm_touchingdiodecase_pulses_2019-07-08_23-07-1894711-47.pkl")
File "C:\Users\Home\AppData\Roaming\Python\Python37\site-packages\pandas\io\pickle.py", line 182, in read_pickle
return pickle.load(f) _pickle.UnpicklingError: invalid load key, 'v'.
The trouble I am facing is that I don't have enought knowledge to know what is failling and how to solve it.
Could you please give me a hand on this? Please, let me know if I missed some information more to give you. Thanks a lot in advance!