Sains Ma1aysiana 25(2): 27-34 (1996)                                                                        Sains Fizis dan Gunaan/

                                                                                                                                       Physical and Applied Sciences

Fitted Curve Paramaters for the Efficiency

of a Coaxial HPGe Detector

Supian bin Samat

Jabatan Fizik

Universiti Kebangsaan Malaysia

43600 UKM Bangi Selangor D.E. Malaysia

ABSTRACT

Using Ngraph software, the parameters of various functions were deter­mined by least squares analysis of fits to experimental efficiencies, ε_f of a coaxial HPGe detector for gamma rays in the energy range 59 keV to 1836 keV. When these parameters had been determined, their reliability was tested by the calculated goodness-of-fit parameter χ²_cal It is shown that the function, where n = 3, gives satisfactory results.

ABSTRAK

Menggunakan perisian Ngraph, parameter pelbagai fungsi ditentukan dengan kaedah penyesuaian kuasa-dua terkecil untuk kecekapan ujikaji, ε_f dalam julat tenaga sinar gama 59 ke V ke 1836 ke V untuk satu pengesan HPGe sepaksi. Setelah parameter ini ditentukan, kebolehpercayaan yang fungsi,  dimana n = 3 memberikan keputusan yang memuaskan.

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Taki, M., Y., Supian bin Samat, Yoshida, M., Manabe, I & Minami, K. 1994. Characteristics of Prepared Gamma-ray Calibration Source for Radioactivity Measurements of Environmental and Radiation Control Areas. JAERI M Research Report (has been accepted for publication).

Taki, M., Oi, Y., Supian bin Samat, Yoshida, M., Manabe, I. & Minami, K. 1994. Characteristics of Prepared Gamma-ray Calibration Source for Radioactivity Measurements of Environmental and Radiation Control Areas. Proc. of Fall Meeting of the Atomic Energy Society of Japan, Hokkaido, N44, p. 296.