- #1
john824
- 4
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I am looking for way how to do relative calibration of light sensor (PMT). I would appreciate any suggestions or links to sources with description how to do it in very simple (understand also cheap if possible) way.
For example. Let say that I have integration sphere with two outpust. I have two optical cables connecting to sphere. Let's assume that those two cables are identical. Optical cable enlight PMT sensor from some distance in black box. I can measure light characterstics by PMT (not calibrated). With distribution maximum at point I_max_one_source.
If I connect two cables from integration sphere to black box, playing role of two very close sources, should I see 2 times more pulses on PMT? So will I see distribution with maximum at point
I_max_two_sources = 2 x I_max_one_source?
Any other way or suggestions how to do simple calbration are appreciated.
Thanks for answers to naive questions from beginner in the field.
For example. Let say that I have integration sphere with two outpust. I have two optical cables connecting to sphere. Let's assume that those two cables are identical. Optical cable enlight PMT sensor from some distance in black box. I can measure light characterstics by PMT (not calibrated). With distribution maximum at point I_max_one_source.
If I connect two cables from integration sphere to black box, playing role of two very close sources, should I see 2 times more pulses on PMT? So will I see distribution with maximum at point
I_max_two_sources = 2 x I_max_one_source?
Any other way or suggestions how to do simple calbration are appreciated.
Thanks for answers to naive questions from beginner in the field.