TEL-2591

• Perform X-Ray Fluorescence

• Investigate Mosley's Law

• Analyze the composition of alloys composed of metals below atomic number 50 (Tin)

• Teach students about solid state x-ray detection

• 0.55 keV energy resolution

• All software included

• USB powered

The X-Ray Energy Detector, together with the TEL-X-Ometer, can perform x-ray Flouresence on most common alloys. MCA software is included, making it quick and easy to display a graph of intensity as a function of energy. Comparison of this graph to reference data easily identifies the components of any alloy. The software includes functions to deconvolute nearby peaks, as well as noise removal. Individual pulses can also be displayed as a voltage vs. time graph for investigation into the behavior of the detector.

The X-Ray Energy Detector can be used to perform several instructive experiments. Students can investigate Mosley's law that the behavior of each element is defined by its atomic number. The spectra of 8 adjacent elements, from Vanadium to Zinc can be compared. Using this data, alloys can be compared. It is easy to identify the composition, for instance, of pennies produced before 1982 (95% copper) as compared with modern pennies (97.5% zinc). Stainless steel can also easily be distinguished from normal steel.

Specifications:

Energy range: approx. 2 keV to 30 keV

Energy resolution (FWHM): 0.55 keV at EFeKalpha = 6.40 keV

Entrance window: Plastics (absorption equivalent to Graphite with d = 40 µm)

Detector: Si-PIN photo diode

Active Area: 0.8 mm dia.

Thickness: approx. 200 µm

Dead time per pulse: approx. 200 µs

Charge sensitive preamplifier: enclosed

Main amplifier with pulse shaping: enclosed

Digital signal processing: enclosed

Connection: USB

Cable length: 1.75 m

Dimensions: 80 mm x 22 mm dia.

Mass: 150 g