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Salman Khan
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If pulse source output is recorded by a detector on oscilloscope, is it possible to calculate dose from this output voltage pulse?
In case of PMT or other solid state detector?Alex A said:That depends on the detector and any amplifier. For an ion chamber it would be the total charge transferred, which would be the area under the curve on an oscilloscope trace under some circumstances, or the height of the pulse in others.
A Geiger counter tube would not work. Some other forms of detector might work, but interpreting the result might be challenging.
Dose calculation in the context of an oscilloscope typically refers to measuring the amount of electrical signal energy or power delivered over a period of time. This can be important in various applications such as medical devices, radiation measurement, and signal integrity testing.
To measure the dose using an oscilloscope, you need to capture the signal waveform over the desired time period. You can then use the oscilloscope's measurement functions to calculate the area under the curve (integral) of the signal, which gives you the total energy or dose delivered.
For accurate dose calculation, set your oscilloscope to a suitable time base and vertical sensitivity to clearly capture the entire signal waveform. Use averaging or high-resolution mode if available to reduce noise. Ensure that the probe and oscilloscope bandwidth are adequate for the signal frequency.
Many modern oscilloscopes offer built-in functions or scripts that can automate dose calculation. You can use these features to automatically integrate the signal waveform and display the dose. Additionally, some oscilloscopes support custom scripts using languages like Python or MATLAB for more complex calculations.
Common sources of error include incorrect probe calibration, inadequate sampling rate, noise in the signal, and improper oscilloscope settings. Ensuring proper setup, calibration, and using noise reduction techniques can help minimize these errors.