Concept explainers
Interpretation:
If the X-ray with tungsten target is operating at a voltage of 50 kV, the short wavelength limit of the produced continuum needs to be calculated.
Concept introduction:
Short wavelength limit is calculated by using Planck’s constant using the following formula-
Here,
V= voltage
Answer to Problem 12.1QAP
Short wavelength limit of continuum is
Explanation of Solution
Short wavelength in X-ray tube is defined as the condition at which the intensity of spectrum is zero at a certain wavelength, where electrons transfer their energy into photon energy. This is given as-
On putting the values,
From equation (1)
Therefore,
Short wavelength of continuum is calculated by using Planck’s constant formula which is the ratio of constant value and the given voltage value. Therefore, calculated value of short wavelength is
Want to see more full solutions like this?
Chapter 12 Solutions
Principles of Instrumental Analysis
- A Beer’s law plot is prepared by plotting absorbance vs molar concentration of the absorbing species. What are the units of the slope? What are the units of the y-intercept?arrow_forwardYou are required to measure a sample that absorbs at a wavelength of 300 nm and 4 µm.What would you use as your light source? Justify your answer.arrow_forwardPlease determine the origin and possible numbers of electronic absorption band(s) for [Mn(OH2)6]3+ based on the following Tanabe-Sugano diagram:arrow_forward
- A spectral line of 48Ti8+ in a distant star was found to be shifted from 654.2 nm to 706.5 nm and to be broadened to 61.8 pm. What are the speed of recession and the surface temperature of the star?arrow_forwardWhat is the significance of whether the fluorescent substance in fluorescent tubes has a short or long phosphorescence?arrow_forward(1)Calculate the average distance a 100 keV photon will travel in graphite. (2) Calculate the thickness required to halve the intensity of the incident beam.arrow_forward
- Describe how the attenuation of X-rays correlate with i) their photon energy, ii) the chemical make-up of the transmission material, and iii) the distance they have travelled through the material.arrow_forwardIn the figure below we present two curves. The sample to multilayers of graphene. The technician who obtained the spectra does not know how many layers each curve corresponds to. But you do. answer the following: a. With what technique were the spectra obtained?arrow_forward
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage LearningPrinciples of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage Learning
- Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,