Archeops 1999 Trapani Flight detector configuration


Optical configuration of bolometers on the sky 
(from Jacques' load_archeops_ins.pro)
 fnumber of shaul hanany : fnumber=1.75
 55mm ---> 1.5 degrees on the sky
 thus the focal length is : 
 foc = 55mm/1.5degrees = 0.055/1.5 * 180/pi = 2.101 meters
 equivalent telescope diameter = Dtel = foc/fnumber = 1.200 meters
 bolometers are integrated with a separation of 28.6 mm on the focal plane
 this corresponds to 0.78 degrees on the sky, or 46.8 minutes
 config on the sky:
                            /\         o     O
                  elevation ||                     positive scanning, clockwise
                            ||       .    O    o      ---------->
                            ||
                            ||         x     O

                            /\         4     2
                  elevation ||                     positive scanning, clockwise
                            ||       6    1    5      ---------->
                            ||
                            ||         x     3

 x = no detector
 . = 353 GHz channel 3
 o = 217 GHz channel 2
 O = 143 GHz channel 1


Numbering in Fits TOI (eop is electrical output plug) 
  (from Gispert et al note #1 and logbooks)
  new boloMuV11  old bolotens_6  channel1-bolo1 on eop12
  new boloMuV8   old bolotens_4  channel1-bolo2 on eop9 
  new boloMuV13  old bolotens_8  channel1-bolo3 on eop14
  new boloMuV9   old bolotens_5  channel1-bolo4 on eop10
  new boloMuV4   old bolotens_2  channel1-bolo5 on eop5 
  new boloMuV15  old bolotens_10 channel1-bolo6 on eop16

Configuration of thermometers on the focal plane
  (from Alain Benoit and Bruno Maffei logbooks)
  new boloMuV2  old bolotens_1  is Thermo-Dum100mK2 on eop3  dilution
  new boloMuV1  old bolotens_0  is Thermo-Dum100mK4 on eop2  pied1 (regulation)
  new boloMuV6  old bolotens_3  is Thermo-Dum100mK6 on eop7  on bolo4 (Pb?)
  new boloMuV14 old bolotens_9  is Thermo-Lou100mK2 on eop15 on bolo5
  new boloMuV12 old bolotens_7  is Thermo-Lou100mK3 on eop13 plate with bolometers
  new boloMuV16 old bolotens_11 is Thermo-Lou1.6K5  on eop17 1.6K stage
  new boloMuV17 old bolotens_12 is Thermo-Lou1.6K6  on eop18 1.6K stage
  new boloMuV18 old bolotens_13 is Thermo-Lou10K7   on eop19 10K stage



Alain Benoit and F.-Xavier Desert, 1999/08/18