Application                 Wavelength          Signal Level        Detector            Cost                
FEL setup                                                                                                   
       M2                   3 - 6.6             Watts               Pyrocam             15k                 
       Spectrum             3 - 6.6             mW                  Pyroarray           15k                 
              3rd Harm.     1 - 2.2             mW                  CID? GaAs videcon                       
       Beam Transport       1 - 2.2             mW                  CID? GaAs videcon                       
       Commissioning        3 - 6.6             nW                  InSb, HgCdTe PtSi   25k-80k             
               3rd Harm.    1 - 2.2             nW                  CID? GaAs videcon                       
       Mirror Losses        3 - 6.6             uW  (few degrees    InSb, HgCdTe PtSi   25k-80k             
                                                C)                                                          
                                                                                                            
Dump viewer                 3 - 5 , NIR         uW to 0.01 uW       InSb, HgCdTe PtSi   25k-80k  15k        
                                                (few degrees) uW    Pyrocam                                 
                                                (10 degrees)                                                
                                                                                                            
Linac                                                                                                       
      SLM                   VIS-NIR             mW                  ICCD                1k, 8k-12k          
      OTR                   VIS                 uW                  CCD/CID             0.5k, 2k            

IR Cameras

InGaAs 0.9 - 1.7 um

InSb 2.2 - 4.6 um Very sensitive butdown at long wavelength

HgCdTe 2 - 5 um

PtSi 1 - 5 um Often sold with 3 um long pass filter

$ 25k gets you B&W system, no temperature scale

$ 60k gets color scaling, temperature readout, flash card image storage

All Focal Plane Arrays

None are gated

Many come with on-board processors, flash cards, hand held, battery powered.

Some have RS232 or 488 port.

Typical sensitivity to < 0.1^oC change at source (corresp. to 2 uW/cm² emission at source)

Typical floor is - 10^o C (200 uW/cm2 at source)

They come cooled by LN, Stirling engine, TE