NKS-B GammaTest:Spectra for calibration
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The task is to report at least all identified nuclides - perfect solution includes the identification of all significant peaks, including background peaks i.e. no background subtraction.
1. Peak/nuclide identification exercise spectrum file: 12711G6.chn
- Sample: sewage sludge sample in 0.5 l Marinelli beaker
- Detector: coaxial, p-type HPGe detector, relative efficiency 39%
- Energy calibration options
- spectrum: calibG6.chn, certificate of calibration source: certif.txt (files attached)
- energy calibration equation: E = 0.3337 * ch – 0.183 (E= energy in keV, ch = channel)
- channel-energy –pairs:
- 140.2 – 46.54 keV
- 1531.4 ¬– 511.0
- 4378.6 – 1460.8
- 7835.4 – 2614.5
2. Peak/nuclide identification exercise; spectrum file: 11100B1.chn
- sample: contaminated film dosimeter
- detector: Canberra BEGe detector BE5030, relative efficiency 50%, thin entrance window,thin Ge dead layer
- energy calibration options
- energy calibration equation: E = 0.3305 * ch + 0.7301 (E= energy in keV, ch = channel)
- channel – energy -pairs:
- 67.7 – 23.1 keV
- 516.3 ¬– 171.3
- 740.2 – 245.4
- 1258.3 – 416.6
