Overview of detectors

last modified 13-09-2006 11:26

There are a number of detectors that are available at ID1. In most cases a certain detector is associated with a given measurement. For example for GID/GISAXS measurements the PSD is very useful and for Anomalous X-ray Diffraction or WAXS measurements a NaI scintillator is ideal when used with an analyser crystal. SAXS measurements use a 2D gas filled detector on a moveable track inside a 4.5m vacuum tube or more recently a CCD camera is available that is specially configured for use in vacuum. Here is an overview of the detectors:

 
TYPE DETECTORS APPLICATION En range En res Window Max Counts Vac Remarks
(keV) dE/E (%) (cm) (cps)
Scintillator
Cyberstar NaI WAXS (+ analyser) 4-100+ 40 3.5 (circle) 1 x 10e6 No
NaI (Vacuum) in vacuum Yes
Solid state
RONTEC Si  Energy resolved 1 to 15 5 5 mm2 5 x 10e5 No

Special Vacuum

case possible

LINEAR
PSD Ar/CH4 gas GID/GISAXS 4 to15 10x60 mm2 1 x 10e5 No
Pixel Size (microns)
2D
CCD Princeton SAXS 4 to 40 10 (circle) 50 Yes
DLD Ar/ethane SAXS 4 to 20 25 (circle) 200 Yes 1 - 4 m from sample
Image Plate SAXS/Laue 4 to 80 25 x 35 Yes

European Synchrotron Radiation Facility