Select the best choice of detector for the specific type of spectroscopic applic

Question

Select the best choice of detector for the specific type of spectroscopic application. Fill in the letter i) through vi) of your preferred choice in the blanks provided:


A. Scanning, sequential visible spectrophotometer such as Spectronic 20, in single wavelength measurement applications        _______


B. Spectrofluorimeter for very low light intensity luminescence studies             _______                
C. Rapid recording of full spectra in 200-800 nm range in solution-based kinetics experiments                                                                     _______


D. Mid-IR absorption spectrum (500 – 4000 cm-1)                  _______


E. Measuring intensity vs. energy from a gamma-emitting radioisotope containing sample                   _______


F. Recording complex atomic emission spectra with an optical Spectrometer that disperses the light vs. wavelength in two dimensions     _______


Choices:
i)   Photomultiplier tube

ii) Photodiode array

iii) Phototube

iv) Si(Li) or HPGe detector with pulse height analyzer

v) Thermistor

vi) CCD array

Explanation / Answer

The detectors which match the given statements of given options are as follows:

A. Phototube

B. Photomultiplier tube

C. Photodiode array

D. CCD array

E. Si(Li) or HPGe detector with pulse height analyzer

F. Thermistor

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