发明名称 |
Radiation analysis apparatus. |
摘要 |
<p>A radiation analysis apparatus is provided having means for correcting errors in a pulse-height distribution due to differential non-linearities of the analog-to-digital converter that is employed for digitising the detector signals. Correction is performed by multiplying counts by correction factors so as to form corrected counts constituting a corrected pulse-height spectrum. Correction factors are obtained by supplying to the analog-to-digital converter a known control-measurement detector signal having a known corresponding ideal pulse-height spectrum. Comparison of the pulse-height spectrum actually formed upon supplying the control-measurement detector signal with the ideal pulse-height spectrum provides correction factors that are stored in a memory means. Generator signals obtained during radiation analysis lead to counts to be corrected which are supplied to a multiplication means together with respective correction factors such that corrected counts are formed constituting a corrected pulse-height distribution being supplied to a display device. <IMAGE></p> |
申请公布号 |
EP0626591(A1) |
申请公布日期 |
1994.11.30 |
申请号 |
EP19940200673 |
申请日期 |
1994.03.16 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
BOLK, HENDRIK JOHANNES JAN;ZIELTJENS, GEORGES CHARLES PETRONELLA |
分类号 |
G01T1/17;(IPC1-7):G01T1/17 |
主分类号 |
G01T1/17 |
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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