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PTB-Berichte Dosimetrie (Dos)

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PTB-Dos-34

Catalogue of X-ray spectra and their characteristic data - ISO and DIN radition qualitites, therapy and diagnostic radiation qualities, unfiltered X-ray spectra -

Autor(en): Ulrike Ankerhold
Report Typ: PTB-Bericht
Jahr: 2000
Seite(n): II, 119 S.
ISBN: ISBN 3-89701-513-7
Zusammenfassung: The pulse height spectra of the radiation qualities of the low air-kerma rate, narrow-spectrum, wide-spectrum and hight air-kerma rate ISO series, the A-, B- and C-series according to the German DIN standard 6818-1, several diagnostic and therapy radiation qualities and unfiltered X-ray spectra were measured using a Ge spectrometer and a special experimental set-up. The spectra were unfolded to obtain the fluence spectra. The characteristic parameters (first and second half-value layer, mean photon energy, 10% percentile, kerma factor, conversion coefficients from air kerma, K.sub.a.nosub. to the operational radiation protection quantities H.sub.p.nosub.(10), H.sub.p.nosub.(0,07), H*(10) and H´(0,07,.Omega..Vektor.) were determined for each radiation quality and each unfiltered X-ray spectrum using these fluence spectra. All data given are normalised to reference conditions. For each radiation quality and each unfiltered X-ray spectrum the fluence spectrum is shown in a graph together with two other curves. One curve is the fluence spectrum weighted with the energy-dependent kerma factors; the second is the fluence spectrum weighted with the energy-dependent conversion coefficients from fluence to personal dose equivalent, H.sub.p.nosub.(10).
Bemerkung: PTB-Bericht PTB-Dos-34

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