1 / 10

Ge:Ga Detector Performance Tests

Ge:Ga Detector Performance Tests. D. Rosenthal. Goal: Measurement of detector performance independent of CRE performance. Responsivity, NEP, and quantum efficiency measured in two test phases -> PACS-ME-TR-001, -003 Detector design,

ahava
Télécharger la présentation

Ge:Ga Detector Performance Tests

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ge:Ga Detector Performance Tests D. Rosenthal Ge:Ga Detector Performance Tests

  2. Goal: Measurement of detector performance independent of CRE performance • Responsivity, NEP, and quantum efficiency measured • in two test phases -> PACS-ME-TR-001, -003 • Detector design, • i.e. detector material, light cones, and cavity design • verified by measurement of quantum efficiency Ge:Ga Detector Performance Tests

  3. TIA with thermally decoupled JFET (~ 50 K) used • cold black body (50–200 K), mesh filter (lcenter=190 mm, • FWHM=50 mm) Ge:Ga Detector Performance Tests

  4. Results • Measurement of responsivity, NEP and • quantum efficiency at • Pph=3x10-13, 1x10-12, and 3x10-12 W and • Tmodule= 1.8, 1.85, 1.9, and 1.93 K • Responsivity for 13 of 16 pixels of EM 6 • NEP and QE for 10 of 16 pixels of EM 6 Ge:Ga Detector Performance Tests

  5. responsivity uniform selection by room temperature resistance applicable Ge:Ga Detector Performance Tests

  6. Results of 22 individual measurements averaged • NEP background limited for bias > 30 mV • average quantum efficiency ~ 35% Ge:Ga Detector Performance Tests

  7. Conclusion average quantum efficiency of ~ 35% -> better than specification (>30%) -> verification of optical design (light cones, cavity), mechanical design (stressing mechanism), and detector material Ge:Ga Detector Performance Tests

  8. Ge:Ga Detector Performance Tests

  9. Ge:Ga Detector Performance Tests

  10. Ge:Ga Detector Performance Tests

More Related