The quantum efficiency of the XMM pn-CCD camera

被引：15

作者：

Hartmann, R ^{[1
]}

Hartner, G ^{[1
]}

Briel, UG ^{[1
]}

Dennerl, K ^{[1
]}

Haberl, F ^{[1
]}

Strüder, L ^{[1
]}

Trümper, J ^{[1
]}

Bihler, E ^{[1
]}

Kendziorra, E ^{[1
]}

Hochedez, JF ^{[1
]}

Jourdain, E ^{[1
]}

Dhez, P ^{[1
]}

Salvetat, P ^{[1
]}

Auerhammer, J ^{[1
]}

Schmitz, D ^{[1
]}

Scholze, F ^{[1
]}

Ulm, G ^{[1
]}

机构：

[1] Max Planck Inst, Semicond Lab, D-81739 Munich, Germany

来源：

EUV, X-RAY, AND GAMMA-RAY INSTRUMENTATION FOR ASTRONOMY X | 1999年 / 3765卷

关键词：

quantum efficiency; XMM; detectors; calibration; X-ray;

D O I：

10.1117/12.366552

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The quantum efficiency of the pn-CCD detector on the XMM satellite mission was determined in the spectral range between 150eV and 15 keV. The unstructured entrance window of the device, which is formed by an ultrathin reverse biased pn-junction, results in an excellent spatial homogeneity with a good spectroscopic performance and high detection efficiency for low energy photons. The large sensitive thickness of the detector guarantees a high (greater than 90 %) quantum efficieny for photons up to 10keV. We give a review of the calibration techniques applied for quantum efficiency measurements at the Synchrotron Radiation Facility at the Institut d'Astrophysique Spatial (IAS) in Orsay and the radiometry laboratory of the Physikalisch-Technische Bundesanstalt at the electron storage ring BESSY in Berlin. We summarize the applied data correction such as charge transfer loss and split event recognition and describe the data analysis to conclude in an absolute quantum efficiency of the pn-CCD. Finally we compare the obtained results with a detector response model.

引用

页码：703 / 713

页数：11

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