X ray interactions - Study guides, Class notes & Summaries

What is the lost of some energy from the x-ray beam as it passes through the tissue being imaged? - Beam attenuation The photoelectric affect involves the removal and or ejection of an electron. This process of removing an electron from an atom is? - Ionization When the x-ray photon strikes an atom within the tissue being imaged and looses "all" of it's energy to an "inner" shell electron of an atom the photon is set to have been ________ to undergo ________? - absorb; photoelectric i...

Roentgen discovered x-rays while working with a _____ tube? - Crookes An "electron cloud" surrounding the filament of the cathode is referred to as a - Space charge Free electrons of X-ray production come from the - Filament The creation of the space charge in the X-ray tube produces: - thermionic emission The majority of photons in the X-ray beam are created by which process? - Bremsstrahlung interactions More than 99% of the energy of the electron stream is converted into: - heat the ...

Roentgen discovered x-rays while working with a _____ tube? - Crookes An "electron cloud" surrounding the filament of the cathode is referred to as a - Space charge Free electrons of X-ray production come from the - Filament The creation of the space charge in the X-ray tube produces: - thermionic emission The majority of photons in the X-ray beam are created by which process? - Bremsstrahlung interactions More than 99% of the energy of the electron stream is converted into: - heat the ...

NBDE Part II - 2009 Exam A Questions & Answers A patient has pain over the left pre-auricular area; this patient can open approximately 45 mm and has a "pop-and-click" in the joint area. The most likely diagnosis is A. myofascial pain dysfunction syndrome. B. internal derangement with reduction. C. auriculotemporal syndrome. D. coronoid hyperplasia. - ANSWERSB. internal derangement with reduction. Erythromycin is responsible for numerous drug interactions, some of which are fatal. ...

LMRT QUESTIONS AND ANSWERS GRADED A+ spatial resolution is improved when SID increases the adoption of a DICOM standard in the medical imaging industry was designed to allow various vendors to share digital data with out proprietary software constrains. Most AECS utilize ___ ion chambers in various combinations. Three Shape distortion is caused by ? A. as the ratio of SID and SOD B.using the tube angle and OID C.automatically in the computer post processing none of the above Filament mater...

b Combination of photon energy & tissue atomic # results in the highest probability of PE effect a. Low photon energy and low atomic number b. Low photon energy and high atomic number c. High photon energy and low atomic number d. High photon energy and high atomic number d How does the filament transformer of the x-ray machine change the shape of electrical power? a. Step-up voltage and step down-current b. Step-down voltage and step down-current c. Step-up voltage and step-up c...

An image that demonstrates low contrast can be caused from: 1. High mAs 2. Low kVp 3. Insufficient beam restriction correct answer: 3 only Which of the following interactions with matter reduce contrast in an x-ray image? correct answer: Compton scattering From anatomical position, pronating the hand will result in the palm facing ____. correct answer: Posteriorly The maximum variation between consecutive exposures when using the same technical factor is: correct answer: withi...

EPA Lead Inspector Latest Update Graded A+ Lead-based paint (LBP) Any varnish, shallac, or coating that contains either- 1.0 mg/cm2 - 0.5 % by weight - 5000 ppm - Older instruments could not read accurately at 0.7, so the lead standard was updated to 1.0 Dust sample clearance values - Floors: 40 μg/ft2 > 10 μg/ft2 (10 μg/ft2 in NY) - Windows: 250 μg/ft2 > 100 μg/ft2 (50 μg/ft2 in NY) - Window wells (troughs): 400 μg/ft2 (100 μg/ft2 in NY) - Samples must be at 1 sq ft &...

Low photon energy and high atomic number Combination of photon energy & tissue atomic # results in the highest probability of PE effect *Low photon energy and low atomic number *Low photon energy and high atomic number *High photon energy and low atomic number *High photon energy and high atomic number Step down voltage and step up current How does the filament transformer of the x-ray machine change the shape of electrical power? *Step up voltage and step down current *Step down ...

CT BOOT CAMP CT Image Production (2022/2023) Already Passed If the rotation time of a scan is decreased, what other exposure parameter should be changed to maintain the image quality? A. Increase millimaperage (mA) B. Increased kilovoltage peak (kVp) C. Decrease scan length D. Decrease milliamperage (mA) A. Increase millimaperage (mA) What technical change is expected to increase the penetrating ability of an x-ray beam? A. Increase kilovoltage peak (kVp) B. Increased milliamperage (mA) C. Inc...