DURRETT 210A
30 minutes after each class period and anytime by appointment.
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PHYS-1305-001 Introductory Physics I
Introduction to physics for students who have limited backgrounds in science and mathematics. Topics include mechanics, properties of matter, heat and thermodynamics.
Student Resources Student Resources Website
Notice to Students enrolled in an educational program for preparation of issuance of certain occupational licenses:
Students enrolled in an educational program in preparation for obtaining certain occupational licenses are potentially ineligible for such license if the student has been convicted of an offense. For further information, please contact:
Melodie Graves
Justice Involved Advocate
Student Service Center 117
mgraves24@actx.edu
806-371-5995
Make appointment at https://melodiegraves.youcanbook.me
You can also contact the Legal Clinic, or the faculty member in charge of the educational program that you seek to enroll in. The further information you will receive will include notification to you of your right to request a criminal history evaluation letter from the licensing authority in order to clarify your particular situation.
(3 sem hrs; 3 lec)
On Campus Course
Sidney K. Edelman, Understanding Ultrasound Physics, 4th Edition, see: https://esp-inc.com/uup/
All lab supplies will be provided by the instructor.
Vide "expected student behavior" infra.
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If you are an active staff or faculty member according to Human Resources, use "Exchange". All other students, use "AC Connect (Google) Email".
Course Philosophy: This course is not merely a requirement; it is the scientific foundation of your future clinical practice. Physics is the language of sonography and radiology. Your ability to understand sound waves, artifacts, and radiation safety directly correlates to the quality of images you will produce and the safety of the patients in your care. Therefore, students are expected to approach this course with the rigor and professionalism required of a clinician.
Core Expectations:
Active Preparation & Cumulative Learning:
Physics is cumulative. Students are expected to read the assigned chapters from the Edelman text before the lecture.
Because Week 1 (Foundations) builds directly into Week 11 (Doppler Optimization), falling behind creates a "knowledge debt" that is difficult to repay. Consistent, weekly study is required over cramming.
Critical Thinking & Application:
Do not simply memorize the "Range Equation" or "Snell’s Law." You are expected to ask why and how these principles alter a diagnostic image.
Students should be prepared to explain the clinical consequence of physics adjustments (e.g., "If I increase frequency to improve resolution, what am I sacrificing in penetration?").
Safety Consciousness (ALARA Principle):
During the final four weeks (Radiation, Radioactivity, and Health Physics), the focus shifts from diagnostic imaging to biological safety. Students must demonstrate a serious commitment to understanding the ALARA (As Low As Reasonably Achievable) principle.
A casual attitude toward bioeffects—whether thermal indices in ultrasound or ionization in health physics—is unacceptable.
| Category | Weight | Frequency / Description |
| Laboratory Practicals | 25% | Weekly hands-on sessions. Grades are based on active participation, equipment handling, and the submission of a post-lab analysis report. |
| Exams (Midterm & Final) | 20% | Midterm (18%): Covers Weeks 1–8 (Ultrasound Physics). Final (5%): Cumulative, with emphasis on Weeks 9–16 (Doppler & Radiation Physics). |
| Final Capstone Project | 20% | A semester-long project requiring students to demonstrate synthesis of physics concepts. |
| Homework Problem Sets | 15% | Weekly assignments derived from the text and supplementary radiation safety problems. Focus is on calculation and concept application. |
| Quizzes | 10% | Brief, low-stakes assessments given at the start of lectures to verify reading comprehension of the assigned chapters. |
| Attendance | 10% | Mandatory physical presence and punctuality. See policy details below. |
| Total | 100% |
Timely and consistent attendance is vitally important for success in this course. Attendance is worth 10% of the course grade.
| Week | Unit / Theme | Topics Covered | Chapter Reference |
| 1 | Foundations | • The Basics (Units, Powers of Ten, Relations) • Sound Fundamentals (Waves, Parameters) | Ch. 1: The Basics Ch. 2: Sound |
| 2 | Wave Mechanics | • Describing Sound Waves (7 Parameters) • Pulsed Waves (Duration, PRP, PRF, Duty Factor) | Ch. 3: Describing Sound Waves Ch. 4: Describing Pulsed Waves |
| 3 | Beam Physics I | • Sound Beam Intensities (Spatial & Temporal) • Interaction of Sound and Media (Reflection, Scattering) | Ch. 5: Intensities Ch. 6: Interaction of Sound and Media |
| 4 | Transducers & Ranging | • The Range Equation (Time-of-Flight) • Transducer Construction & Frequencies | Ch. 7: Range Equation Ch. 8: Transducers |
| 5 | Resolution & Beams | • Sound Beam Anatomy (Focus, Divergence) • Axial and Lateral Resolution | Ch. 9: Sound Beams Ch. 10: Axial and Lateral Resolution |
| 6 | Imaging Modalities | • Display Modes (A-Mode, B-Mode, M-Mode) • Two-Dimensional Imaging (Transducer Arrays) | Ch. 11: Display Modes Ch. 12: Two-Dimensional Imaging |
| 7 | Instrumentation I | • Real-Time Imaging (Temporal Resolution) • Pulsed Echo Instrumentation (Pulser, Receiver) | Ch. 13: Real-Time Imaging Ch. 14: Pulsed Echo Instrumentation |
| 8 | Instrumentation II | • Displays & Image Processing (Analog vs Digital) • Dynamic Range | Ch. 15: Displays and Image Processing Ch. 16: Dynamic Range |
| 9 | Advanced Acoustics | • Harmonics & Contrast Agents • Hemodynamics (Energy Gradient, Flow Forms) | Ch. 17: Harmonics and Contrast Agents Ch. 18: Hemodynamics |
| 10 | Doppler Physics I | • Doppler Effect & Equation • Pulsed vs. Continuous Wave Doppler | Ch. 19: Doppler (Part 1) |
| 11 | Doppler Physics II | • Color Flow Doppler & Spectral Analysis • Optimizing Doppler Imaging (Aliasing, Wall Filters) | Ch. 19: Doppler (Part 2) Ch. 20: Optimizing Doppler Imaging |
| 12 | Ultrasound Capstone | • Comprehensive Review of Acoustic Physics • Integration of Concepts (Ch. 1–20) | Review Session |
| 13 | Radiation Physics | • Structure of the Atom & Electromagnetic Spectrum • Ionizing vs. Non-ionizing Radiation | External Module: Radiation |
| 14 | Radioactivity | • Modes of Decay (Alpha, Beta, Gamma) • Isotopes, Half-Life, and Activity Units | External Module: Radioactivity |
| 15 | Interaction with Matter | • Attenuation of Radiation • Photoelectric Effect & Compton Scattering | External Module: Health Physics I |
| 16 | Health Physics | • Radiation Dosimetry & Detection • Biological Effects & Radiation Safety Guidelines | External Module: Health Physics II |
Teaching and learning are dynamid processes. As such, the instructor reserves the right to make alterations to the above concept sequence to facilitate student learning. Any changes will be announced as far in advance as possible. Your instructor is here for you success; please do not hesitate to contact the instructor at any time.
01/20/26 1:01 AM
01/20/26 1:23 AM