HPGe detector photopeak efficiency calculation including self-absorption and coincidence corrections for Marinelli beaker sources using compact analytical expressions

2001 ◽  
Vol 54 (5) ◽  
pp. 761-768 ◽  
Author(s):  
Mahmoud I. Abbas
Keyword(s):  
Hpge Detector ◽  
Marinelli Beaker ◽  
Efficiency Calculation ◽  
Analytical Expressions

HPGe detector efficiency calibration for extended cylinder and marinelli-beaker sources using the ESOLAN program

1997 ◽  
Vol 48 (1) ◽  
pp. 83-95 ◽  
Author(s):  
Tien-Ko Wang ◽  
Wei-Yang Mar ◽  
Tzung-Hua Ying ◽  
Chia-Lian Tseng ◽  
Chi-Hung Liao ◽  
...  
Keyword(s):  
Hpge Detector ◽  
Efficiency Calibration ◽  
Detector Efficiency ◽  
Marinelli Beaker

Monte Carlo based geometrical model for efficiency calculation of an n-type HPGe detector

2010 ◽  
Vol 68 (12) ◽  
pp. 2403-2408 ◽  
Author(s):  
Fatima Padilla Cabal ◽  
Neivy Lopez-Pino ◽  
Jose Luis Bernal-Castillo ◽  
Yisel Martinez-Palenzuela ◽  
Jimmy Aguilar-Mena ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Hpge Detector ◽  
Geometrical Model ◽  
Efficiency Calculation

Layered and ion implantation specimens as possible reference materials for the electron-probe microanalysis

1992 ◽  
Vol 50 (2) ◽  
pp. 1652-1653
Author(s):  
G. Remond ◽  
R.H. Packwood ◽  
C. Gilles ◽  
S. Chryssoulis
Keyword(s):  
Ion Implantation ◽  
Reference Materials ◽  
Analytical Techniques ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
X Ray ◽  
Spatially Resolved ◽  
Analytical Expressions ◽  
Original Approach ◽  
Depth Concentration

Merits and limitations of layered and ion implanted specimens as possible reference materials to calibrate spatially resolved analytical techniques are discussed and illustrated for the case of gold analysis in minerals by means of x-ray spectrometry with the EPMA. To overcome the random heterogeneities of minerals, thin film deposition and ion implantation may offer an original approach to the manufacture of controlled concentration/ distribution reference materials for quantification of trace elements with the same matrix as the unknown.In order to evaluate the accuracy of data obtained by EPMA we have compared measured and calculated x-ray intensities for homogeneous and heterogeneous specimens. Au Lα and Au Mα x-ray intensities were recorded at various electron beam energies, and hence at various sampling depths, for gold coated and gold implanted specimens. X-ray intensity calculations are based on the use of analytical expressions for both the depth ionization Φ (ρz) and the depth concentration C (ρz) distributions respectively.

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