Question 4The following diagram shows the basic structure of the gamma camera used for medical imagingto data-loggerand computerPhotomultipliertubeSodium iodidecrystalLead gratingDescribe how the gamma camera detects gamma rays allowing the production of images.[Suggested word count 130] [2.1]

In nuclear medicine, the gamma camera, also known as a scintillation camera, is the most widely…

The following diagram shows the basic structure of the gamma camera used for medical imaging to data-logger and computer Photomultiplier tube TI Sodium iodide crystal Lead grating Describe how the gamma camera detects gamma rays allowing the production of images. [Suggested word count 1201 1211

The following diagram shows the basic structure of the gamma camera used for medical imaging to data-logger and computer Photomultiplier tube TI Sodium iodide crystal Lead grating Describe how the gamma camera detects gamma rays allowing the production of images. [Suggested word count 1201 1211

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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PROBLEM: VID-3 BOOK: ENGINEERING THERMOFLUIDS, M. MASSOUD (please can you answer my question even if it's rough computation)
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A variety of crystals are used in the engineering application based on the crystal compound and orientation. For example, quartz (SiO4) is widely used in the clock parts as a precise oscillator supported by the battery to produce a uniform regulation element mechanism to keep accurate time. The quartz crystal with 90% and above purity is vibrating 32768 times per second, creating a signal with a precise frequency, then the vibrations are measured by the circuit and converted into a single pulse every second, which later creates precise movements. (i) Give an example of other applications using any crystalline materials(except quartz, which can be any compound but not composite materials) in engineering applications. (ii) Explain why and how the chosen crystalline materials is affecting thatapplication mechanism?(iii) Describe the elemental species for that crystalline materials, the melting point, and its dominant crystal orientation at room temperature. (iv) With the support of…
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Show that in a parabolic potential well, the spacing between the energy levelsis constant. In semiconductors, parabolic potential wells are often produced byusing narrow square potential wells where the well to barrier width ratio graduallychanges. Use the virtual crystal approximation to design a GaAs/AlAs parabolicwell where the level spacing for the electron is approximately 8meV. (Hint: This isthe harmonic oscillatorproblem.)
. Oil drilling rigs are used for drilling holes for identification of oil or natural gas sources and for extraction.An oil drilling system can be thought of as a drillinside a straw, which is placed inside a glass. Thestraw assembly represents the drill string, the drillsurrounded by fluid, and the glass represents thevolume, the annulus, around the drill string throughwhich slurry and eventually oil will flow as the drillingprogresses.Assume that we want to control the drill pressure output, Pd (t), with a reference voltage input,Vd (t). A control loop model (Zhao, 2007) consistsof a drill-pressure controller, drill motor subsystem,pulley subsystem, and drill stick subsystem. Theoutput signal of the latter, the drill pressure, Pd (t),is measured using a transducer, which transmits anegative feedback voltage signal, Vb(t), to the drillpressure controller. That signal is compared at theinput of the controller to the reference voltage, Vr(t),Based on the error, e(t) = Vr (t) – Vb(t),…