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Detectors - Experimental Hutch
There are a number of detectors that are available on ID01. For most applications using small beams, a Si-based 2D pixel detector (Maxipix) with 516x516 pixels and 55 micron pixel size or 2D Eiger detector with 1030x2164 75 micron pixel size is used.
For full field diffraction microscopy, a 5 Megapixel cmos/ scinitllator based camera with 7 micron pixel size is the most adapted device
Other detectors can be used occasionally
Here is an overview of the detectors:
Type | Medium | Vacuum compatible | Application | Energy range (keV) | Energy resolution dE/E(%) |
Dynamic range | Remarks |
Point detectors (occasional use) | |||||||
Pin diodes (callibrated) | SI diode | Yes | alignment/calibration | 4-20 ? | ??? | 1013 or more | Energy calibarted |
Cyberstar (scintillator) | NaI | No Yes |
WAXS (+ analyser) in vacuum |
4-100+ | aprox. 20% | 4 x 104 | Max. countrate = 1.5 x 105 /s |
ROENTEC (Solid state) | Si | No | Energy resolved | 1-15 | 1% | ??? | Special housing for vacuum available |
AMPTEK (Solid state) | Si CdTe |
??? | Fluorescence | 2(?)-15 ?-200 |
2% ? | ??? | ??? |
Area detectors (mostly the best solution) | |||||||
Eiger | photon counting pixel detector | No | Nanodiffraction/ CDI | 6-17 | 20% |
7 x 105 ph/s/pixel |
0.4-6.5 m downstream of the sample |
Maxipix | photon counting pixel detector | No | Nanodiffraction/ CDI | 6-17 | 40% |
2 x 105 ph/s/pixel |
0.4-2.4 m downstream of the sample |
Andor Zyla | GdOS or CsI scintillators fiber coupled to CMOS | Yes in detector box | only for full field imaging in long detector arm (2.5 to 6.5 m from sample | 6-40 | N.A. (integrating) |
30 000 ph/s/pixel |
2.5-6.5 m downstream of the sample |