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hariprasath
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i would like to know the self absorption parameter of 3x3 inches NaI crystal. which is used in estim,ating the radionuclides
High School What is the self absorption parameter
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The self-absorption parameter for a 3x3 inch NaI crystal is crucial for accurately estimating radionuclides. This parameter accounts for the attenuation of gamma rays within the crystal, affecting detection efficiency. Various factors, such as the energy of the gamma rays and the geometry of the setup, influence the self-absorption value. Users often refer to empirical data or calibration methods to determine this parameter for specific applications. Understanding this parameter enhances the precision of radionuclide measurements in nuclear spectroscopy.
I am observing an irregular, aperiodic noise pattern in the reflection signal of a high-finesse optical cavity (finesse ≈ 20,000). The cavity is normally operated using a standard Pound–Drever–Hall (PDH) locking configuration, where an EOM provides phase modulation.
The signals shown in the attached figures were recorded with the modulation turned off. Under these conditions, when scanning the laser frequency across a cavity resonance, I expected to observe a simple reflection dip. Instead...
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