Click here for the gamma detector for X-ray absorbtion. The data are from a Cs137 source using Aluminum absorbers of different thicknesses. The information of the data files are listed below. You can also obtain ascii listings of the data for your own spreadsheet by clicking on the files below.

Our data acquisition was done using a PCAE card from Oxford Instruments, and has 1028 channels. The ascii files below contain a listing of 1028 numbers starting with the counts recorded in channel number 0 and ending with the counts recorded in channel number 1027.

The file no absorber contains spectra data for the x-ray of the Cs137 source with no absorber. Note: the amplification has been doubled from the previous 662 KeV data, so the x-ray peak can be more clearly measured. The x-ray photopeak is at around channel 90.

The file absorber 7 contains spectra data for the x-ray of the Cs137 source with an aluminum absorber thickness of 0.082 g/cm2. Note: the amplification has been doubled from the previous 662 KeV data, so the x-ray peak can be more clearly measured. The x-ray photopeak is at around channel 90.

The file absorber 13 contains spectra data for the x-ray of the Cs137 source with an aluminum absorber thickness of 0.342 g/cm2. Note: the amplification has been doubled from the previous 662 KeV data, so the x-ray peak can be more clearly measured. The x-ray photopeak is at around channel 90.

The file absorber 17 contains spectra data for the x-ray of the Cs137 source with an aluminum absorber thickness of 0.620 g/cm2. Note: the amplification has been doubled from the previous 662 KeV data, so the x-ray peak can be more clearly measured. The x-ray photopeak is at around channel 90.

The file absorber 20 contains spectra data for the x-ray of the Cs137 source with an aluminum absorber thickness of 0.961 g/cm2. Note: the amplification has been doubled from the previous 662 KeV data, so the x-ray peak can be more clearly measured. The x-ray photopeak is at around channel 90.

The file absorber 22 contains spectra data for the x-ray of the Cs137 source with an aluminum absorber thickness of 1.225 g/cm2. Note: the amplification has been doubled from the previous 662 KeV data, so the x-ray peak can be more clearly measured. The x-ray photopeak is at around channel 90.

The file absorber 25 contains spectra data for the x-ray of the Cs137 source with an aluminum absorber thickness of 1.602 g/cm2. Note: the amplification has been doubled from the previous 662 KeV data, so the x-ray peak can be more clearly measured. The x-ray photopeak is at around channel 90.