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Category Archives: Chapter 7 – Schrödinger’s Wave Equation

A Low-Cost X-Band Generator for Microwave Optics Experiments

Posted on September 20, 2012 by David Prutchi Posted in Chapter 1 - Light as a Wave, Chapter 6 - The Uncertainty Principle, Chapter 7 - Schrödinger's Wave Equation, Doppler Effect, Gunnplexer Transceiver, Quantum Tunneling

Parallax X-Band Microwave Transmitter for diy Quantum Tunneling and Microwave Optics Experiments

Gunnplexers are becoming scarce in the surplus market, but X-band motion detection is very much alive.  X-band detection modules are available for OEM applications, and fortunatelly, Parallax has a unit based on this module available for $34.99.

Continue reading→

d.i.y. Quantum Dot Synthesis

Posted on February 12, 2012 by David Prutchi Posted in Chapter 7 - Schrödinger's Wave Equation, Quantum Dots

CdSe nanoparticle suspension of quantum dots of the type used by David and Shanni Prutchi www.diyphysics.comExperimental chemistry is not our forte, so we prefer to use professionally-manufactured quantum dots for the Schrödinger’s Wave Equation experiments we discuss in the book‘s Chapter 7.  However, if you are interested in synthesizing your own quantum-dot nanoparticle suspensions, we recommend that you take a look at the detailed instructions prepared by  Professor George Lisensky at Beloit College for the Preparation of Cadmium Selenide Quantum Dot Nanoparticles (Local printer-friendly copy at: CdSe_Quantum_Dot_Synthesis). Continue reading→

Prototyping PCB for d.i.y. Photomultiplier (PMT) Amplifier/Processor

Posted on January 31, 2012 by David Prutchi Posted in Chapter 2 - Light as Particles, Chapter 3 - Atoms and Radioactvity, Chapter 7 - Schrödinger's Wave Equation, Compton Scattering, Ionizing Radiation Detection, Photomultipliers, PMT/Scintillation Processor, Scintillation Detector, Single-Photon Experiments

Printed circuit board for diy PMT amplifier, processor, discriminator and scintillator detector

We built the bulk of our PMT amplifier/processor/discriminator on a Universal PDIP Operational Amplifier Evaluation Module by Texas Instruments (model OPAMPEVM-PDIP).  Click on the picture above for a full-size version of the picture.

The diagram in the following pdf file shows the connection layout for the circuit shown in the book’s Figure 34: PMT Processor PCB  Continue reading→

RCA 6655A PMT Data Sheet

Posted on January 14, 2012 by David Prutchi Posted in Chapter 2 - Light as Particles, Chapter 3 - Atoms and Radioactvity, Chapter 5 - Wave-Particle Duality, Chapter 7 - Schrödinger's Wave Equation, Compton Scattering, Ionizing Radiation Detection, Photomultipliers, Scintillation Detector

RCA 6655A photomultiplier tube

This is the datasheet for the RCA 6655A PMT used in the probe shown in the book’s Figure 30: RCA_6655A_Datasheet

This is the datasheet for Hamamatsu’s replacement of the RCA 6655A PMT: Hamamatsu replacement for RCA 6655A R2154-02

Schematic diagrams for the probe are in Figure 29.

Assembly View of diy Variable-Output, High-Performance PMT High-Voltage Power Supply

Posted on January 14, 2012 by David Prutchi Posted in Chapter 2 - Light as Particles, Chapter 3 - Atoms and Radioactvity, Chapter 5 - Wave-Particle Duality, Chapter 7 - Schrödinger's Wave Equation, Compton Scattering, High-Voltage Power Supply, Ionizing Radiation Detection, MCA/PHA, Photomultipliers, Single-Photon Experiments

Variable-output, low-ripple, high-stability, high-voltage power supply described in pages 38-40 of "Exploring Quantum Physics Through Hands-On Projects."

We are posting this picture to help you construct the variable-output, low-ripple, high-stability, high-voltage power supply described in pages 38-40 of “Exploring Quantum Physics Through Hands-On Projects.”  The schematic diagrams for this power supply are in the book’s Figure 31.  Output voltage (up to 2 kV) and current (up to 1 mA) are monitored via two LCD panel meters. Continue reading→

X-Band Gunnplexer Microwave Transceiver for Microwave Optics Experiments

Posted on January 4, 2012 by David Prutchi Posted in Chapter 1 - Light as a Wave, Chapter 6 - The Uncertainty Principle, Chapter 7 - Schrödinger's Wave Equation, Doppler Effect, Gunnplexer Transceiver, Quantum Tunneling, Single-Slit Diffraction, Two-Slit Interference

X-Band Gunnplexer Transceiver for Microwave Optics Experiments

This is an inside view of our X-Band Gunnplexer transceiver (book‘s Figure 12) that should help you build your own units if you follow the schematics shown in the book’s Figure 11 .  It is used throughout Chapter 1 for experiments in microwave optics, in Chapter 6 to measure single-slit diffraction, and in Chapter 7 to experiment with Quantum Tunneling. Continue reading→

MX-10160 Gen III Image Intensifier Tube

Posted on January 4, 2012 by David Prutchi Posted in Chapter 5 - Wave-Particle Duality, Chapter 7 - Schrödinger's Wave Equation, Mach-Zehnder Interferometer, Single-Photon Experiments, Single-Photon Imaging, Two-Slit Interference

MX-10160 Gen III intensifier tube used in the helmet-mounted AN/AVS-6 “ANVIS” aviation night vision imaging system

Gen III image intensifier tube used in diy single-photon camera

This is the surplus Gen III image intensifier tube (an MX-10160 Gen III intensifier tube used in the helmet-mounted AN/AVS-6 “ANVIS” aviation night vision imaging system, which we purchased on eBay®) that we used to build our setup to image interference patterns from our single-photon two-slit setup (book‘s Figure 93).  The tube is supplied by 3VDC from two AA cells.  We used the same camera to record interference patterns from a single-photon Mach-Zehnder interferometry setup (book‘s Figure 132). Continue reading→

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