Angle 4 is the latest version of the long existing and well known software for semiconductor detector gamma-efficiency calculations, now also supporting scintillation ones. Angle allows for accurate determination of the activities of gamma-spectroscopic samples for which no “replicate” standard exists, in terms of geometry and matrix. Semi-empirical “efficiency transfer” (ET) approach is used, based on the effective solid angle (Ω) calculations.
Angle 4 combines advantages of both absolute (no experimental evidence, e.g. Monte Carlo calculations only) and relative (fully experimental, calibrated-source-based) methods – minimizing potential for systematic errors in the former and reducing practical limitations of the latter.
Angle 4 is a result of 24 years of development, practical experience in numerous gamma-spectrometry laboratories worldwide and constructive users’ feedback. For the list of some prominent Angle users click here.
Angle 4 is broadly applicable in:
Angle 4 can be used in most of counting arrangements in gamma-spectrometry practice in respect to:
Main characteristics can be summarized as:
Work on further Angle improvements and upgrading continues – towards meeting spectrometrists’ needs and requirements.