Calibration of a portable HPGe detector using MCNP code for the determination of 137Cs in soils.
In situ gamma spectrometry provides a fast method to determine (137)Cs inventories in soils. To improve the accuracy of the estimates, one can use not only the information on the photopeak count rates but also on the peak to forward-scatter ratios. Before applying this procedure to field measurements, a calibration including several experimental simulations must be carried out in the laboratory. In this paper it is shown that Monte Carlo methods are a valuable tool to minimize the number of experimental measurements needed for the calibration.
Gutiérrez-Villanueva
J L
JL
Laboratorio LIBRA, Edificio I+D, Paseo Belén 3, 47011 Valladolid, Spain. joselg@libra.uva.es
Martín-Martín
A
A
Peña
V
V
Iniguez
M P
MP
de Celis
B
B
de la Fuente
R
R
D002138:Calibration; D002588:Cesium Radioisotopes / Q000032:analysis / Q000592:standards; D009010:Monte Carlo Method; D011834:Radiation Monitoring / Q000295:instrumentation* / Q000379:methods*; D015203:Reproducibility of Results; D013051:Spectrometry, Gamma / Q000379:methods
D002588:Cesium Radioisotopes