Franck–Hertz Atomic Excitation Experiment Kit with Tube and Amplifier

Description

The Franck-Hertz Experiment Set with Tube and Amplifier, also known as a Franck-Hertz apparatus or atomic excitation experiment kit, is designed for investigating fundamental principles of quantum physics through electron collisions with gas atoms. The IEC Franck-Hertz apparatus incorporates a glass electron tube containing xenon gas, commonly described as a thyratron, with electrodes arranged to control electron acceleration and investigate excitation processes. During the experiment, electrons gain kinetic energy from an applied accelerating voltage. When sufficient energy is reached, electrons can undergo inelastic collisions with xenon atoms, transferring energy and exciting the atoms to higher energy states.

By observing changes in the measured current as the accelerating voltage varies, students can investigate discrete atomic energy levels, providing experimental evidence of energy quantisation. The apparatus includes an integrated current amplifier powered by an internal 9 V battery, enabling very small electrical currents to be measured using compatible ordinary laboratory bench meters. This amplification system provides a practical alternative to using a sensitive mirror galvanometer, simplifying current observation during teaching experiments. External power supplies are required for the electron tube heater and anode/cathode voltage, and suitable measurement instruments must be connected according to the experimental instructions.

The kit is particularly suitable for advanced physics teaching, atomic structure investigations and university laboratory practicals involving electron energy and quantised excitation. Safety Precautions: The apparatus contains a fragile glass electron tube and requires electrical supplies that may involve hazardous voltages and hot components. Use approved power supplies, avoid contact with exposed electrical connections and allow the tube to cool before handling.

This product is intended for laboratory and educational settings only and should be operated under appropriate supervision. The product includes the Franck-Hertz apparatus, xenon-filled electron tube, built-in amplifier and internal 9 V battery as listed. External heater and electrode power supplies, bench meters, connecting leads and additional accessories are not specified as included.

LabChoice Australia supplies Franck-Hertz Experiment Sets and advanced physics teaching equipment for university laboratories, physics departments, research training facilities and educational institutions studying atomic physics and quantum mechanics.