Size: 1661
Comment:
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Size: 6339
Comment:
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Deletions are marked like this. | Additions are marked like this. |
Line 9: | Line 9: |
|| Heater || 1.84 mA || From bias / heater loop test - corresponds to 2.68K || | || Heater || 1.5 mA || Result from bias / heater loop test (2.68K/1.84mA) exceeds thermal budget || |
Line 18: | Line 18: |
* Accessible range : * 50K - 1045K (nominal) |
* Allowed working range : * 45K - 1045K (nominal) |
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* Conversion wavelength - grating position: | * Conversion wavelength - grating position (based on ILT-1) : || Band || Order || Filter || wavelength || Grating position || || R1 || 1 || n/a || 210um || 96K || || || || || 100um || 991K || || B2B || 2 || B || 100um || 301K || || || || || 70um || 812K || || B2A || 2 || A || 70um || 812K || || || || || 53um || 1040K || || B3A || 3 || A || 70um || 183K || || || || || 50um || 740K || * Other wavelengths in the PCSS: {{{ from spec import * print wave2GratPos(105., "B2", 8, calVersion="FM_1_0") print gratPos2Wave(1000000, "B2", 8, calversion="FM_1_0") }}} |
Line 24: | Line 42: |
* Configuration table column : CSLopt1 * Accessible range : -12500 to + 12500 * Optical zero : 650 (nominal) * Conversion chopper position - angle on the sky: |
* !!! Do NOT use the chopper in redundant mode !!! * Configuration table CONFChopper / column : CSLopt3-600 * Accessible range : -23500 to +23000 * At +/- 25000 a field plate limit disables the controller * Conversion chopper position - angle on the sky - FPU angle relevant for Photometer || FPU Angle || Sky Angle || Chopper pos || Comment || || -7.57 deg || -5.79 arcmin || -21350 || center CS1 (determined from PHOTO FoV map) || || -2.22 deg || -1.81 arcmin || -6830 || Photometer chop field A (raster) || || -0.37 deg || -26 arcsec || -1145 || Photometer chop field A (point source photometry) || || 0.22 deg || 0 arcmin || 664 || Optical zero - value from Zeiss measurements || || 0.8 deg || 26 arcsec || 2440 || Photometer chop field B (point source photometry) || || 2.54 deg || 1.73 arcmin || 7660 || Photometer chop field B (raster) || || 7.94 deg || 5.74 arcmin || 21200 || center CS2 (determined from PHOTO FoV map) || * Conversion chopper position - angle on the sky - FPU angle relevant for Spectrometer || FPU Angle || Sky Angle || Chopper pos || Comment || || -7.57 deg || -5.79 arcmin || -21350 || center CS1 (determined from PHOTO FoV map) || || -4.04 deg || -3.17 arcmin || -12220 || large chopper throw A || || -1.86 deg || -1.55 arcmin || -5743 || medium chopper throw A || || -0.47 deg || -0.51 arcmin || -1442 || small chopper throw A || || 0.22 deg || 0 arcmin || 664 || Optical zero - value from Zeiss measurements || || 0.89 deg || 0.5 arcmin || 2727 || small chopper throw B || || 2.21 deg || 1.5 arcmin || 6704 || medium chopper throw B || || 4.18 deg || 2.95 arcmin || 12260 || large chopper throw B || || 7.94 deg || 5.74 arcmin || 21200 || center CS2 (determined from PHOTO FoV map) || * Other angles - in the PCSS (release >20070303A) : {{{ from all import * chopPositions = Double1d([-21350.,-6700., 664., 8000., +21200.]) # CS1, PhotLeft, Center, PhotRight, CS2 # Chopper positions to FPU angles (deg) print chopPos2FpuAnglePol(chopPositions) # Chopper positions to Sky angles (arcmin) print chopPos2SkyAngle(chopPositions) # FPU angles (deg) to Chopper positions fpuAngles = Double1d([-4, 4]) print fpuAngle2ChopPosPol(fpuAngles) # Sky angles (arcmin) to Chopper positions skyAngles = Double1d([-3, 3]) print skyAngle2ChopPos(skyAngles) }}} * Chopper step to move over one pixel - depends on chopper position || Chop pos || Blue phot (3.2") || Red phot (6.4") || Spectro (9.4") || || -21350 (CS1) || 164 || 328 || 481 || || -6700 || 218 || 437 || 641 || || 664 || 221 || 441 || 648 || || 8000 || 209 || 417 || 613 || || 21200 (CS2) || 150 || 300 || 441 || * At other positions - in the PCSS (release >20070303A): {{{ bluePhotSky = 3.2 # Blue photometer pixel on the sky (arcsec) fpuAngle = -7.6 # degrees - chopper angle at which to calculate the delta position chopPos = fpuAngle2ChopPosPol(Double1d([fpuAngle])) offsetChopPos = convertChopperAngleSteps(chopPos,bluePhotSky * 80.69/60.]) print offsetChopPos }}} |
Line 39: | Line 117: |
* 80 Ohm = 71K * Chopper position center : - TBD |
* 48 Ohm = 55K * Chopper position center : -21350 |
Line 42: | Line 120: |
* 92 Ohm = 76K * Chopper position center : + TBD |
* 58 Ohm = 60K * Chopper position center : +21200 |
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* Scale: 1" on the sky = 0.18mm | |
Line 48: | Line 127: |
* Center spectro field : * x = -12.8 mm * y = +1.2 mm |
* 1 pixel = 9.4" = 1.692mm * Center spectro field : || || X stage (mm) || Y stage (mm) || || RED || -12.7628 || 0.938300 || || BLUE || -12.6774 || 1.15180 || |
Line 53: | Line 135: |
* 1 blue pixel = 3.2" = 0.576mm * 1 red pixel = 6.4" = 1.152mm |
|
Line 55: | Line 139: |
* y = 0 | * y = 1.5 |
FM ILT reference numbers
Ge:Ga detector settings
- Blue
par
value
comment
Bias d
198 mV
From bias / heater loop test
Bias r
10 mV
Component level value - to be verified on CRE checkout test
Heater
1.5 mA
Result from bias / heater loop test (2.68K/1.84mA) exceeds thermal budget
- Red
par
value
comment
Bias d
69 mV
From bias / heater loop test
Bias r
10 mV
Component level value - to be verified on CRE checkout test
Grating
- Configuration table: CONFGrat. Column : FMILTFast / FMILT_R_Fast for redundant
- Allowed working range :
- 45K - 1045K (nominal)
- 65K - 1065K (redundant)
- Conversion wavelength - grating position (based on ILT-1) :
Band
Order
Filter
wavelength
Grating position
R1
1
n/a
210um
96K
100um
991K
B2B
2
B
100um
301K
70um
812K
B2A
2
A
70um
812K
53um
1040K
B3A
3
A
70um
183K
50um
740K
- Other wavelengths in the PCSS:
from spec import * print wave2GratPos(105., "B2", 8, calVersion="FM_1_0") print gratPos2Wave(1000000, "B2", 8, calversion="FM_1_0")
Chopper
- !!! Do NOT use the chopper in redundant mode !!!
- Configuration table CONFChopper / column : CSLopt3-600
- Accessible range : -23500 to +23000
- At +/- 25000 a field plate limit disables the controller
- Conversion chopper position - angle on the sky - FPU angle relevant for Photometer
FPU Angle
Sky Angle
Chopper pos
Comment
-7.57 deg
-5.79 arcmin
-21350
center CS1 (determined from PHOTO FoV map)
-2.22 deg
-1.81 arcmin
-6830
Photometer chop field A (raster)
-0.37 deg
-26 arcsec
-1145
Photometer chop field A (point source photometry)
0.22 deg
0 arcmin
664
Optical zero - value from Zeiss measurements
0.8 deg
26 arcsec
2440
Photometer chop field B (point source photometry)
2.54 deg
1.73 arcmin
7660
Photometer chop field B (raster)
7.94 deg
5.74 arcmin
21200
center CS2 (determined from PHOTO FoV map)
- Conversion chopper position - angle on the sky - FPU angle relevant for Spectrometer
FPU Angle
Sky Angle
Chopper pos
Comment
-7.57 deg
-5.79 arcmin
-21350
center CS1 (determined from PHOTO FoV map)
-4.04 deg
-3.17 arcmin
-12220
large chopper throw A
-1.86 deg
-1.55 arcmin
-5743
medium chopper throw A
-0.47 deg
-0.51 arcmin
-1442
small chopper throw A
0.22 deg
0 arcmin
664
Optical zero - value from Zeiss measurements
0.89 deg
0.5 arcmin
2727
small chopper throw B
2.21 deg
1.5 arcmin
6704
medium chopper throw B
4.18 deg
2.95 arcmin
12260
large chopper throw B
7.94 deg
5.74 arcmin
21200
center CS2 (determined from PHOTO FoV map)
Other angles - in the PCSS (release >20070303A) :
from all import * chopPositions = Double1d([-21350.,-6700., 664., 8000., +21200.]) # CS1, PhotLeft, Center, PhotRight, CS2 # Chopper positions to FPU angles (deg) print chopPos2FpuAnglePol(chopPositions) # Chopper positions to Sky angles (arcmin) print chopPos2SkyAngle(chopPositions) # FPU angles (deg) to Chopper positions fpuAngles = Double1d([-4, 4]) print fpuAngle2ChopPosPol(fpuAngles) # Sky angles (arcmin) to Chopper positions skyAngles = Double1d([-3, 3]) print skyAngle2ChopPos(skyAngles)
- Chopper step to move over one pixel - depends on chopper position
Chop pos
Blue phot (3.2")
Red phot (6.4")
Spectro (9.4")
-21350 (CS1)
164
328
481
-6700
218
437
641
664
221
441
648
8000
209
417
613
21200 (CS2)
150
300
441
At other positions - in the PCSS (release >20070303A):
bluePhotSky = 3.2 # Blue photometer pixel on the sky (arcsec) fpuAngle = -7.6 # degrees - chopper angle at which to calculate the delta position chopPos = fpuAngle2ChopPosPol(Double1d([fpuAngle])) offsetChopPos = convertChopperAngleSteps(chopPos,bluePhotSky * 80.69/60.]) print offsetChopPos
Filter Wheel PHOT
- POS A = Long wavelength (Green)
- POS B = Short wavelength (Blue)
Filter Wheel SPEC
- POS A = Short wavelength (50-70um)
- POS B = Long wavelength (70-100um)
Calibration sources
- CS1
- 48 Ohm = 55K
- Chopper position center : -21350
- CS2
- 58 Ohm = 60K
- Chopper position center : +21200
XY stage
- Scale: 1" on the sky = 0.18mm
- Spectrometer
- Focus : +5mm (from FMILT-1, not incompatible with spectro FMILT-2)
- 1 pixel = 9.4" = 1.692mm
- Center spectro field :
X stage (mm)
Y stage (mm)
RED
-12.7628
0.938300
BLUE
-12.6774
1.15180
- Photometer
- Focus : +5mm (from FMILT-1)
- 1 blue pixel = 3.2" = 0.576mm
- 1 red pixel = 6.4" = 1.152mm
- Center field :
- x = 4 mm
- y = 1.5