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| step 1 |
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what is the wavelength of your source? |
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| step 2 |
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do you want to detect at wavelengths below 300nm? |
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| step 3 |
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is low background glass an advantage? |
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| step 4 |
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what detection area and geometry do you require? |
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| step 5 |
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are high light levels or low temperature a consideration? |
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| step 6 |
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have you considered signal / background? |
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| step 7 |
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what is the optimum photomultiplier gain? |
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| step 8 |
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which dynode structure best meets your performance needs? |
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| step 9 |
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are you operating in a harsh environment? |
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| step 10 |
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which mechanical configuration for the base is best for you? |
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