For many years now the education of physicists has been limited by the necessity of restricting classroom attention to stylistic examples and laboratory attention to fairly cheap and limited exercises. The introduction of the computer into the classroom and laboratory removes these constraints and in turn permits the training of a new breed of computational physicists. The authors define and investigate the current usage of computers within university departments of physics by outlining the chronology of their introduction and their role in the new subject of computational physics.

The place of computers in the teaching of physics

A simple and cheap optical analog computed tomography (CT) system, useful for teaching x-ray CT for physics, medical physics and engineering physics students without applying ionizing radiation is presented. White spectrum of a light emitting diode (LED) source was characterized by using an in-house constructed spectrophotometer. A simple electronic hardware, utilizing a synchronization of an universal serial bus webcam and direct current (DC) motor was developed in such a way that, a single click on the record video button of the webcam software is enough to run the tomograph. Finally, the two- and three-dimensional tomography reconstructions are briefly discussed and presented.

https://google.iopscience.iop.org/article/10.1088/1361-6404/abf021/pdf

A simple and low cost USB webcam-driven optical tomography system suitable for teaching x-ray computed tomography

Teaching demonstrations of computerized tomography (CT) and Single-Photon Emission Tomography (SPECT) to biomedical engineering and medical physics students is hampered by a limited accessibility to clinical scanners, especially during day time. The use of ionizing radiation and radioactive sources in X-ray CT and SPECT further complicates the design of a teaching laboratory session. We here propose an inexpensive and safe educational demonstration of CT and SPECT on an anthropomorphic phantom whereby a visible light source serves as source and a CCD camera serves as detector. The equivalent of a SPECT radionuclide in optical CT scanning is a chemiluminescent material which can be obtained relatively inexpensive in the form of party glow sticks. The proposed teaching tool comprises several learning outcomes such as hands-on construction of the scanner, the acquisition of images and image reconstruction. Also, different imaging artefacts can be simulated and investigated.

https://iopscience.iop.org/article/10.1088/1742-6596/1305/1/012058/pdf

Teaching the principles of X-ray CT and SPECT using optical CT, glowsticks and a scaled anthropomorphic phantom

Learning the concept of computerised tomography (CT) and single photon emission tomography (SPECT) by biomedical engineering and medical physics students is hampered by limited access to clinical scanners. The use of ionising radiation and radioactive sources in x-ray CT and SPECT further complicates the design of a teaching laboratory session. We here propose an inexpensive and safe educational demonstration tool for CT and SPECT whereby a visible light source serves as source and a charge-coupled device camera serves as detector. The equivalent of a SPECT radionuclide in optical CT scanning is a chemiluminescent material which can be obtained relatively inexpensive in the form of party glow sticks. The proposed teaching tool comprises several learning outcomes such as hands-on construction of the scanner, the acquisition of images and image reconstruction. Also, different imaging artefacts can be simulated and investigated.

https://iopscience.iop.org/article/10.1088/1361-6404/aaf94c/pdf

Optical CT scanning for experimental demonstration of medical x-ray CT and SPECT

A demonstration experiment was developed which is able to simulate the mode of operation of X-ray computer tomography (CT). A HeNe laser is substituted for the X-ray tube and a selenium cell for the detector. Different optical filters represent the absorbing structures of the human body. By the use of a personal computer with monitor it is possible to demonstrate the image of the structures resulting from different adjustments of centre and window.

https://iopscience.iop.org/article/10.1088/0143-0807/7/2/002/pdf

Computerised tomography (CT) in education: a demonstration experiment for students

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Computerised tomography (CT) in education: a demonstration experiment for students