Q. Why is a mono-energetic radiation source required in X-ray fluorescent spectrometer?

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Q. Which of the following does not make the X-ray tube nearly monochromatic?

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Q. Which of the following components make use of a thin metal foil to isolate a nearly mono-energetic excitation beam?

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Q. Energy dispersive system uses which of the following detectors?

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Q. In Energy dispersive system, the energy level and the number of pulses is related to which of the following?

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Q. The analysis of X-ray beam by diffraction is similar to spectrum analysis carried out with a diffraction grating.

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Q. The crystal used as X-ray grating has _______ dimensional lattice arrays.

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Q. Which of the following can be done to avoid loss of intensities of X-rays due to the absorption of long wavelength X-rays?

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Q. In curved crystal arrangement, angular velocity of the crystal is twice that of the detector.

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Q. Which of the following is the disadvantage of silicon semiconductor detector?

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Q. In total reflection X-ray fluorescence spectrometer, the specimen is excited by the primary X-ray beam at a grazing angle _______ the critical angle.

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Q. The x-ray beam produced by the primary x-ray tube passes through which of the following components to produce the incident radiation?

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Q. Which of the following crystals are polished to act as the cut-off reflector?

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Q. The suppression of high energy bremsstrahlung radiation improves which of the following?

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Q. Which of the following components are used as the sample carrier?

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Q. Which of the following devices are used as a detector?

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Q. Which of the following happens when a large solid angle is intercepted as the detector is placed close to the sample?

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Q. To monitor the primary beam, which of the following is used?

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Q. The major problem associated with sample preparation is which of the following?

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Q. Computer-controlled corrective iteration is the only reliable method of matrix effects correction.

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