Where can I listen to this podcast?

This podcast is available on 4 platforms including Apple Podcasts, Spotify, and more. You can also use the RSS feed directly.

Does this podcast accept guests?

No, this podcast does not typically feature guests.

Quantum Imaging Lab

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by Sanjay Arya, M.S.R.T. (R)(MR), MRSO

5.0(4 reviews)

30 episodes

Updated Daily

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Podcast Overview

Quantum Imaging Lab, presented by Professor Sanjay Arya, M.S., R.T.(R)(MR), provides structured, exam-aligned audio learning for radiologic technology students preparing for the ARRT exam and educators supporting instruction. Episodes cover core ARRT Content Specification areas including Image Production, Radiation Protection, Safety, and Procedures through focused microlearning. Content reflects topics commonly taught in radiologic technology programs and supports ARRT certification and Continuing Qualifications Requirements (CQR). © 2026 Quantum Imaging Lab.

Language

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Publishing Since

3/3/2026

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Recent Episodes

July 6, 2026

[Radiologic Physics] Ep 15 – X-ray Interactions with matter

This episode examines what happens when x-ray photons enter the body — beginning with the foundational terms of primary radiation, transmission, exit radiation, and attenuation, and establishing how the four tissue factors of energy, thickness, atomic number, and mass density each govern how much of the beam is absorbed versus transmitted. Prof. Arya explains why differential absorption is the physical basis of radiographic contrast, and connects these principles directly to how radiographers select exposure factors to balance image quality against patient dose.The second half covers all five types of x-ray interactions with matter in sequence: coherent scattering, Compton scattering, photoelectric absorption, pair production, and photodisintegration — with emphasis on the two interactions that dominate diagnostic imaging. Compton scattering is traced from outer-shell ejection through recoil electron behavior and scatter angle, with attention to its role in radiographic fog and occupational exposure. Photoelectric absorption is analyzed through the photoelectron, the cascade effect, and the Z³ and 1/E³ probability relationships that make it essential for image contrast and the basis of contrast agent use.This episode aligns with the Radiation Physics and Radiobiology content category — specifically x-ray interactions with matter — of the ARRT Radiography Examination Content Specifications.Audio content is adapted from original instructional material developed by Professor Sanjay Arya, M.S., R.T.(R)(MR) for radiologic technology education. Part of the Radiologic Physics series — Quantum Imaging Lab.© 2026 Quantum Imaging Lab. All rights reserved.

June 29, 2026

[Radiologic Physics] Ep 14 – X-ray Production and Emission

This episode covers x-ray production — the process of converting electron kinetic energy into electromagnetic radiation at the anode of the x-ray tube. Prof. Arya explains why unrectified electron flow without sufficient energy would fail to produce diagnostic photons, tracing the three essential conditions required: a source of electrons via thermionic emission, acceleration through applied kVp, and a suitable high-Z target. The episode examines the inefficiency of x-ray production at diagnostic energies, introduces the efficiency formula (K × Z × kVp), and compares how tungsten, molybdenum, and gold targets differ in photon output and characteristic peak positions.The second half distinguishes Bremsstrahlung radiation — a continuous spectrum produced by nuclear field interactions — from characteristic radiation, which releases discrete photons through K-shell vacancy cascades unique to the target material. Each factor affecting the x-ray emission spectrum is analyzed in turn: mAs, kVp, added filtration, generator waveform, and target atomic number — with attention to whether each shifts beam quantity, beam quality, or both. The episode closes with half-value layer as the clinical measure of beam penetrability and its relationship to kVp.This episode aligns with the Equipment Operation and Quality Assurance content category — Radiographic Equipment subcategory — of the ARRT Radiography Examination Content Specifications.Audio content is adapted from original instructional material developed by Professor Sanjay Arya, M.S., R.T.(R)(MR) for radiologic technology education. Part of the Radiologic Physics series — Quantum Imaging Lab.© 2026 Quantum Imaging Lab. All rights reserved.

June 22, 2026

[Radiation Biology] Ep 7 – Late (Stochastic) Effects of Radiation

This episode examines the late and stochastic effects of ionizing radiation, beginning with a review of the distinction between deterministic and probabilistic dose-response relationships. The role of epidemiology in studying radiation-exposed populations is introduced, along with the three primary risk estimation models — relative risk, absolute risk, and excess risk — used to quantify and predict radiation-induced disease. Late deterministic tissue reactions are also addressed, including chronic radiodermatitis, cataractogenesis, and the historical observation of life-span shortening in early radiation workers.Radiation-induced malignancy is examined in depth, covering carcinogenesis, leukemia, and specific cancers of the thyroid, bone, lung, and liver, supported by historical evidence from populations such as atomic bomb survivors, radium dial painters, and uranium miners. Risk prediction models — including the Linear No-Threshold (LNT) and Linear-Quadratic No-Threshold (LQNT) frameworks from BEIR — are explained alongside their applications to radiation protection. The episode concludes with radiation effects on pregnancy across all three developmental stages, and genetic effects including spontaneous and induced mutations, the doubling dose concept, and heritable DNA damage in germ cells.Content is structured to support radiologic technology programs preparing for imaging coursework and ARRT certification review. This episode aligns with the Safety content category — Radiation Physics and Radiobiology subcategory — of the ARRT Radiography Examination Content Specifications.Audio content is adapted from original instructional material developed by Professor Sanjay Arya, M.S., R.T.(R)(MR) for radiologic technology education. Part of the Radiation Biology series — Quantum Imaging Lab.© 2026 Quantum Imaging Lab. All rights reserved.

30 total episodes available

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Frequently asked questions

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What is Quantum Imaging Lab?: Quantum Imaging Lab, presented by Professor Sanjay Arya, M.S., R.T.(R)(MR), provides structured, exam-aligned audio learning for radiologic technology students preparing for the ARRT exam and educators supporting instruction.

Episodes cover core ARRT Content Specification areas including Image Production, Radiation Protection, Safety, and Procedures through focused microlearning.

Content reflects topics commonly taught in radiologic technology programs and supports ARRT certification and Continuing Qualifications Requirements (CQR).

© 2026 Quantum Imaging Lab.
How often does this podcast release new episodes?: This podcast updates daily.
Where can I listen to this podcast?: This podcast is available on 4 platforms including Apple Podcasts, Spotify, and more. You can also use the RSS feed directly.
Does this podcast accept guests?: No, this podcast does not typically feature guests.

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