What is the accelerating voltage of an x-ray tube that produces a spectrum of x rays,...
If the shortest wavelength produced by an x-ray tube is 0.37 nm, what is the voltage applied to the tube? in kV
a) What is the minimum potential difference between the filament and the target of an X-ray tube if the tube is to accelerate electrons to produce X-rays with a wavelength of 0.477 nm? b) What is the shortest wavelength produced in an X-ray tube operated at 28.0 kV?
(a) What is the physical difference between X- rays, y -rays, light and radio waves? How do they interact with tissue (in the absence of a magnetic field)? (b) Draw the X-ray tube spectrum, i.e., the intensity distribution of X-rays as a function of the frequency of emitted X-ray photons (1) at the exit of the X-ray tube before any filtering takes place, and (2) after the filter but before the X-rays have reached the patient. (c) How does the...
urgent attention please The voltage of the X-ray tube is 20 000 V. (a) What is the maximal energy of X rays (in Joules)? The electric charge of electron is qe= 1.6x1019 C. (b) What is the minimal X-rays' wavelength λmin (in nanometers), if their frequency f is connected with their energy E by Planck's formula E = hf. where h is the Planck constant equal to 6.62x10-34 J.s and speed of light is c 3x108 m/s
Characteristic x-rays: 30 keV electons emitted X-ray spectrum (shown below) is measured. are incident on a copper (atomic number- 29) target and the (a) Explain what are the how are they produce? peaks labeled Ka and Kp and What is the wavelength of characteristic Ks X-rays of Cu? (b) What is minimum wavelength (Jmin) of the emitted x-rays? (c) If the characteristic La X-rays are also the same as those of Ka X-rays? Explain your answer. observed, would their wavelength...
Minimal wavelength λmin achievable in an X-ray tube is 0.0249 nm. What is the tube’s peak voltage U (in Volts)? Planck constant value is h = 6.63x10-34 J*s, electron’s charge qe = 6x10-19, speed of light c = 3x108 m/s.
The tube in a medical research X-ray unit uses lead (Z=82) as it's target. 1) Use the Bohr model to estimate the minimum kinetic energy electrons must have to in order for Kα X-rays to just appear in the X-ray spectrum of the tube. Ee = 2) Assuming the electrons are accelerated from rest through a voltage, V, what is the minimum voltage necessary to produce the Kα X-rays?
1.An x-ray tube operates with a tube current of 20.0 mA. The tube voltage is 140.0 kV. If both the tube current and tube voltage are constant, at what rate (j/sec) is energy delivered to the anode? 2.patient is radiographed using 60 kVp and 10 mAs, resulting in an x-ray exposure of 28 mR. If the technique is changed to 55 kVp and 10 mAs,what is the new x-ray exposure? 3.An x-ray film image is taken at 68 kVp and...
How many x-ray photons per second are created by an x-ray tube that produces a flux of x-rays having a power of 1.25 W? Assume the average energy per photon is 73.0 keV.
Please write out your own solution with explinations. Thankyou (a) With the aid of a labeled sketch, describe an apparatus for the generation of x-rays. (2 marks) (b) With the aid of labeled sketches, describe the three primary physical mechanisms for the absorption ofx-rays in solids. (2 marks) (c) Make a sketch of a typical x-ray spectrum generated by a hospital apparatus, labeling three primary features of the spectrum (3 marks) (d) For an x-ray apparatus containing a molybdenum target...