发明名称 |
VERFAHREN FÜR DIE SPEKTROMETRISCHE PHOTONENDOSIMETRIE FÜR RÖNTGEN- UND GAMMASTRAHLUNG |
摘要 |
<p>A method of spectrometric photon dosimetry for integrally and nuclide-specifically determining a gamma dose rate for X-ray and gamma radiation. The method includes measuring a spectrum in at least one energy group or at least one interval group. The pulse height distribution is with a spectrometer and a pulse height analyzer. The number of channels of the spectrometer is such that a map of the pulse height distribution at a requisite resolution over an energy can be made. The measured pulse height distribution is converted into a photon spectrum using a deconvolution procedure that uses response functions having the same energy resolution as the pulse height distribution. The dose spectrum is calculated using dose conversion factors that are energy-dependent and related to the mean energy of a respective corresponding energy interval. The integral dose or dose rate is determined by summing the dose spectrum. The spectrometer is switched to a low-resolution mode of operation in order to ascertain an integral dose rate and switched to a high-resolution mode of operation in order to analyze radiation sources for which nuclides that cause higher dose rates are to be identified.</p> |
申请公布号 |
AT526594(T) |
申请公布日期 |
2011.10.15 |
申请号 |
AT20060753421T |
申请日期 |
2006.04.26 |
申请人 |
GSI HELMHOLTZZENTRUM FUER SCHWERIONENFORSCHUNG GMBH |
发明人 |
FEHRENBACHER, GEORG |
分类号 |
G01T1/02;G01T1/06;G01T1/10 |
主分类号 |
G01T1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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