AXAF HXDS germanium solid state detectors

Walter C. McDermott; Edwin M. Kellogg; Bradford J. Wargelin; Ian N. Evans; S. A. Vitek; Eugene Y. Tsiang; Daniel A. Schwartz; Richard J. Edgar; Stefan Kraft; Frank Scholze; R. Thornagel; Gerhard Ulm; Martin C. Weisskopf; Stephen L. O'Dell; Allyn F. Tennant; Jeffery J. Kolodziejczak; C. G Zirnstein

doi:10.1117/12.278888

11 July 1997 AXAF HXDS germanium solid state detectors

Walter C. McDermott, Edwin M. Kellogg, Bradford J. Wargelin, Ian N. Evans, S. A. Vitek, Eugene Y. Tsiang, Daniel A. Schwartz, Richard J. Edgar, Stefan Kraft, Frank Scholze, R. Thornagel, Gerhard Ulm, Martin C. Weisskopf, Stephen L. O'Dell, Allyn F. Tennant, Jeffery J. Kolodziejczak, C. G Zirnstein

Author Affiliations +

Proceedings Volume 3113, Grazing Incidence and Multilayer X-Ray Optical Systems; (1997) https://doi.org/10.1117/12.278888
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

The design, calibration, and performance of the high purity germanium (HPGe) solid state detectors (SSDs) used in the calibration of the Advanced X-ray Astrophysics Facility high resolution mirror assembly (HRMA) is discussed. The focal plane SSD was used with various apertures to measure the point response function, as well as the effective area of the mirror. The good energy resolution of the detector allowed the effective energy of the mirrors to be measured with a single exposure using a continuum source. The energy resolution was also exploited in measuring the molecular contamination on the mirror surfaces. The SSDs are the transfer detector standards for the HRMA calibration over the energy range from 700 eV to 10 keV. The calibration of the SSDs was performed mostly at the PTB radiometry laboratory using the electron storage ring BESSY. The spectral and spacial distribution of the undispersed synchrotron radiation can be calculated from first principles using the Schwinger Equation. With the electron storage ring being run in a reduced current mode of a few electrons, uncertainties in the calculated flux are below 1%. A comparison of the measured and calculated flux made it possible to determine the detector efficiency with an uncertainty of typically 1%. Electronic effects such as pile- up, count rate linearity and deadtime have been investigated.

Citation Download Citation

Walter C. McDermott, Edwin M. Kellogg, Bradford J. Wargelin, Ian N. Evans, S. A. Vitek, Eugene Y. Tsiang, Daniel A. Schwartz, Richard J. Edgar, Stefan Kraft, Frank Scholze, R. Thornagel, Gerhard Ulm, Martin C. Weisskopf, Stephen L. O'Dell, Allyn F. Tennant, Jeffery J. Kolodziejczak, and C. G Zirnstein "AXAF HXDS germanium solid state detectors", Proc. SPIE 3113, Grazing Incidence and Multilayer X-Ray Optical Systems, (11 July 1997); https://doi.org/10.1117/12.278888

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE