The PHYWE Rutherford Experiment with MCA (Phywe Article No. P2522115) is a complete university-level nuclear physics apparatus that recreates Ernest Rutherford’s 1908 Nobel Prize-winning alpha-particle scattering experiment – the discovery that established the modern model of the atomic nucleus.

Using a semiconductor alpha detector with a detection probability of 1 and virtually no zero effect, students measure how alpha particles from a 370 kBq Am-241 source scatter off thin gold and aluminium foils, then compare the measured particle rates to the values predicted by Rutherford’s scattering equation. The Chadwick-style backscattering geometry inside a transparent glass vacuum chamber allows the scattering angle to be varied continuously from roughly 20 degrees to 145 degrees by shifting the foil and source along the chamber axis. The combination of multichannel analyser (MCA), preamplifier and alpha detector produces precise pulse-height spectra and clean counting statistics across the full angular range.

Experiment tasks:
– Measure particle rates at scattering angles between about 20 and 90 degrees and compare the measurements to the rates calculated from Rutherford’s theory.
– Measure particle rates for gold and aluminium foils at identical scattering angles and compare the ratio to Rutherford’s prediction.

Learning objectives: scattering, angle of scattering, impact parameter, central force, Coulomb field, Coulomb forces, Rutherford atomic model, and the identity of atomic number and nuclear charge.

Recommended for grades 10-13 and university physics laboratories. Experiment time: approximately 45 minutes. Difficulty: advanced. Software included; computer not provided. The radioactive Am-241 source is export-controlled – an End Use Certificate must be obtained before delivery.

Scope of delivery: PHYWE Multichannel Analyser (MCA) 13727-99; measure Software multi channel analyser 14452-61; Alpha detector 09100-00; Annular diaphragm with gold foil 09103-02; Annular diaphragm with aluminium foil 09103-03; U-magnet, U-shaped, limb length 130 mm, colored poles 06320-00; Radioactive source Am-241, 370 kBq 09090-11; Pre-amplifier for alpha detector 09100-10; Diaphragm pump, two stage, 220V 08163-93; Tubing connector Y-shape, ID 6-7 mm 47518-02; Pinchcock, width 20 mm 43631-20; Screened cable BNC, l = 1 m 07542-11 (qty 3); Vacuum gauge DVR 2 pro, 1 … 1000 hPa 34171-00; Vacuum tube NBR, 6/14 mm, 1 m 39289-00 (qty 2); Container for nuclear physics experiments 09103-00.

Item P2522115

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Big protection in a smaller fit. These junior lab safety goggles are sized specifically for younger students, delivering the same reliable eye protection as full-size goggles without the bulk or discomfort. A perfect fit for elementary and middle school classrooms, with clear visibility and a secure adjustable strap.

Item 9218-22

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Maximum coverage, all-day comfort — and certified to back it up. These full-size lab safety goggles meet ANSI Z87.1-2020 standards, delivering professional-grade eye protection for classroom and laboratory settings. A wraparound design, distortion-free lens, and adjustable elastic strap make them the go-to choice for active learning environments.

Item 9218-11

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This foldable meter stick shrinks down considerably and can be folded multiple times, making it far easier to store than regular meter sticks while still functioning in the exact same manner.

It is double-sided, featuring both the US and Metric measurement systems, which enhances its versatility for a wide range of users. Its compact design does not compromise on durability, ensuring that it remains a reliable tool for accurate measurements over time. Additionally, its innovative folding mechanism allows for quick and easy expansion to a full meter and equally swift retraction, simplifying both usage and storage.

Item 6112-10

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Enhance your understanding of solar physics with this detailed Solar Spectrum Educational Poster. This informative poster vividly illustrates the range of electromagnetic waves emitted by the Sun, from ultraviolet to infrared, with a focus on the visible light spectrum. Prominent Fraunhofer lines, representing the specific wavelengths absorbed by various elements, are clearly marked, helping you explore the fascinating interactions between sunlight and different gases.

Key Features:

• Comprehensive depiction of the solar spectrum, including visible, ultraviolet, and infrared light
• Clear marking of Fraunhofer lines with corresponding elements and wavelengths
• Detailed explanations of the absorption spectrum and its significance in identifying elements in the Sun’s atmosphere
• Ideal for educational settings, science enthusiasts, and anyone interested in solar phenomena
• Measures 18″ x 28″

Perfect for classrooms, laboratories, and home study areas, this poster is an essential tool for anyone eager to delve into the intricacies of solar spectroscopy.

Item SOL-01

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This battery tester is small and lightweight making it effortlessly portable. Featuring a user-friendly analog display, this device employs a color-coded, calibrated scale to swiftly determine your battery’s condition. It indicates “good” (green), “low” (yellow), or “replace/recharge” (red) status without requiring any batteries itself. This versatile battery checker is compatible with a wide range of standard and rechargeable household batteries, including AA, AAA, C, D, 1.5V, 9V, and button cells.

Item 1230-30

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These blocks consist of two identical-looking blocks, but with different thermal conductivity properties. One block is a good conductor of heat, while the other is an insulator. To use the Ice Melting Blocks, simply place an ice cube on each block and watch as one ice cube rapidly melts while the other ice cube melts much more slowly. This discrepant event clearly demonstrates the difference between conductors and insulators, making it a great educational tool for physics or thermodynamics classes. The Ice Melting Blocks are made of high-quality materials, ensuring durability and long-lasting use. Their compact size (10cm x10cm) makes them easy to store and transport, while their simple yet effective design makes them suitable for use in both classroom and laboratory settings.

Item 3228-00

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Thanks to the Gravity Ball, anyone can measure any distance, and study the laws of gravity- in a fun way! The timer is activated by the release of a button, and stops when the ball comes in contact with another surface!  The display measures to the hundredth second, up to 29.99 seconds. The ball can be dropped up to 12 meters (39.9 feet), or roughly around 3 stories. To ensure the Gravity Ball’s safety, make sure the ball has some form of padding on the desired landing location.

There are a wide variety of experiments that can take place when you use the ball in different ways. Try throwing the ball upward, or sideways, or drop it! There are so many possibilities with the Gravity Ball. It is a great demonstration of acceleration by gravity, and easy to understand.

Includes: 
-Teacher’s Guide
-Gravity Ball Device
-Gravity Ball Stand

Item 3497-03

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Double Economy Buret Clamp

Item 2062-15

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