1. bookVolume 61 (2016): Issue 4 (December 2016)
Journal Details
License
Format
Journal
eISSN
1508-5791
First Published
25 Mar 2014
Publication timeframe
4 times per year
Languages
English
access type Open Access

Comparison of silicon drift detectors made by Amptek and PNDetectors in application to the PHA system for W7-X

Published Online: 26 Oct 2016
Volume & Issue: Volume 61 (2016) - Issue 4 (December 2016)
Page range: 409 - 412
Received: 20 Jul 2015
Accepted: 05 Jan 2016
Journal Details
License
Format
Journal
eISSN
1508-5791
First Published
25 Mar 2014
Publication timeframe
4 times per year
Languages
English
Abstract

The paper presents comparison of two silicon drift detectors (SDD), one made by Amptek, USA, and the second one by PNDetector, Germany, which are considered for a soft X-ray diagnostic system for W7-X. The sensitive area of the first one is 7 mm2 × 450 μm and the second one is 10 mm2 × 450 μm. The first detector is cooled by a double-stage Peltier element, while the second detector is cooled by single-stage Peltier element. Each one is equipped with a field-effect transistor (FET). In the detector from Amptek, the FET is mounted separately, while in the detector from PNDetector, the FET is integrated on the chip. The nominal energy resolution given by the producers of the first and the second one is 136 eV@5.9 keV (at -50°C) and 132 eV@5.9 keV (at -20°C), respectively. Owing to many advantages, the investigated detectors are good candidates for soft X-ray measurements in magnetic confinement devices. They are suitable for soft X-ray diagnostics, like the pulse height analysis (PHA) system for the stellarator Wendelstein 7-X, which has been developed and manufactured at the Institute of Plasma Physics and Laser Microfusion (IPPLM), Warsaw, in collaboration with the Max Planck Institute for Plasma Physics (IPP), Greifswald. The diagnostic is important for the measurements of plasma electron temperature, impurities content, and possible suprathermal tails in the spectra. In order to choose the best type of detector, analysis of technical parameters and laboratory tests were done. Detailed studies show that the most suitable detector for the PHA diagnostics is the PNDetector.

Keywords

1. Bosch, H. -S., Wolf, R. C., Andreeva, T., Baldzuhn, J., Birus, D., Bluhm, T., Bräuer, T., Braune, H., Bykov, V., Cardella, A., & et al. (2013). Technical challenges in the construction of the steady-state stellarator Wendelstein 7-X. Nucl. Fusion, 53, 126001. DOI: 10.1088/0029-5515/53/12/126001.10.1088/0029-5515/53/12/126001Search in Google Scholar

2. König, R., Baldzuhn, J., Biel, W., Biedermann, C., Bosch, H. S., Bozhenkov, S., Bräuer, T., Brotas de Carvalho, B., Burhenn, R., Buttehschön, B., Cseh, G., Czarnecka, A., Endler, M., Erckmann, V., Estrada, T., Geiger, J., Grulke, O., Hartmann, D., Hathiramani, D., Hirsch, M., Jabłonski, S., Jakubowski, M., Kaczmarczyk, J., Klinger, T., Klose, S., Kocsis, G., Kornejew, P., Krämer-Flecken, A., Kremeyer, T., Krychowiak, M., Kubkowska, M., Langenberg, A., Laqua, H. P., Laux, M., Liang, Y., Lorenz, A., Marchuk, A. O., Moncada, V., Neubauer, O., Neuner, U., Oosterbeek, J. W., Otte, M., Pablant, N., Pasch, E., Pedersen, T. S., Rahbarnia, K., Ryc, L., Schmitz, O., Schneider, W., Schuhmacher, H., Schweer, B., Stange, T., Thomsen, H., Travere, J. -M., Szepesi, T., Wenzel, U., Werner, A., Wiegel, B., Windisch, T., Wolf, R., Wurden, G. A., Zhang, D., Zimbal, A., Zoletnik, S., & W7-X Team. (2015). The set of diagnostics for the first operation campaign of the Wendelstein 7-X stellarator. J. Instrum., 10, P10002.10.1088/1748-0221/10/10/P10002Search in Google Scholar

3. Kubkowska, M., Czarnecka, A., Figacz, W., Jabłoński, S., Kaczmarczyk, J., Krawczyk, N., Ryć, L., Biedermann, C., Koenig, R., Thomsen, H., Weller, A., & W7-X Team. (2015). Laboratory tests of the Pulse Height Analysis System for Wendelstein 7-X. J. Instrum., 10, P10016.10.1088/1748-0221/10/10/P10016Search in Google Scholar

4. Lechner, P., Fiorini, C., Hartmann, R., Kemmer, J., Krause, N., Leutenegger, P., Longoni, A., Soltau, H., Stötter, D., Stötter, R., Strüder, L., & Weber, U. (2001). Silicon drift detectors for high count rate X-ray spectroscopy at room temperature. Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip., 458, 281-287.10.1016/S0168-9002(00)00872-XSearch in Google Scholar

5. El-Taher, A. (2012). Elemental analysis of granite by instrumental neutron activation analysis (INAA) and X-ray fluorescence analysis (XRF). Appl. Radiat. Isot., 70, 350-354. DOI: 10.1016/j.apradiso.2011.09.008.10.1016/j.apradiso.2011.09.008Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo