NDC IPS PDR - Rochester Institute of Technology
Download
Report
Transcript NDC IPS PDR - Rochester Institute of Technology
Intra-pixel Sensitivity Testing
Preliminary Design Review
3 August 2001
Stella Jang
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Goals
•
Present the calibrated target/ 3-axis stage design
•
Present requirements for blackbody radiation contrast and pixel
saturation
•
Show that the proposed design meets the necessary
requirements
•
Show that required tolerances can be met
•
Approve a plan for moving from PDR to CDR
21 July 2015
2
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Definition of Intra-pixel Sensitivity
x0 y0
N i , j , i , j , ( x, y ) I ( x, y)dxdy
0 0
Ni,j
i,j(x,y)
I
=number of electrons/second detected in pixel i,j
=intra-pixel sensitivity at x,y in pixel i,j
=number of photons/second arriving at x,y in pixel i,j
j+2
j+1
j
i
21 July 2015
i+1
i+2
3
i+3
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Definition of Intra-pixel Sensitivity
Figure 8. DRM-quality photometry (1%) cannot be achieved according to our
measurements of intra-pixel sensitivity. (Left) Intra-pixel sensitivity of HgCdTe to a
point source measured by Co-I Finger. (Right) NICMOS magnitude errors as a
function of intra-pixel source location (Stiavelli, private communication).
21 July 2015
4
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
IPS Experiment Requirements
(from TFST0900, Table 1)
Wavelength range
0.5 – 5.5 mm
Sampling
5x5 – 10x10 per pixel with
1%relative position error
Image size
< 5 mm FWHM over 10 x 10 pixel
central region, no requirement
outside this area
21 July 2015
5
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
NGST Requirements
NDC0200 (from NGST Doc. #641)
Experiment
Requirement
IPS
No
No
Requirement
Requirement
(0.4-0.53 MTF) (0.53 MTF)
21 July 2015
Goal
6
Measurement Accuracy
Required
Consistent with
1% worst-case photometry
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Modules
light source
light guide
pinhole
Offner
focal reducer
3-axis stage
window
21 July 2015
7
filters
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Layout with f/1.5 focal reducer
45° flat
45° flat
Offner
secondary
f/10 point
source
detector
focal
reducer
filter
window
Offner
primary
21 July 2015
8
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Shaded model -- with focal reducer
21 July 2015
9
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Close-up of f/1.5 focal reducer
21 July 2015
10
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Modules Requirements
Module
Light source
Adjustable output
(Light guide)
Transmission in IR
Pin hole
3-axis stage
Sub-pixel image size
Filter
Window
In-band and out-of-band transmission consistent
with contrast and saturation requirements
Consistent with image and flux requirements
Offner
Consistent with image and flux requirements
Focal reducer
Consistent with image and flux requirements
21 July 2015
Requirement
Motion in < .02mm increments
11
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
pinhole=
5 microns
f/#=
1.5
demagnification=
0.15
21 July 2015
Wavelength
(micron)
0.50
0.55
0.61
0.67
0.73
0.81
0.89
0.97
1.07
1.18
1.30
1.43
1.57
1.73
1.90
2.09
2.30
2.53
2.78
3.06
3.36
3.70
4.07
4.48
4.92
5.42
FWHM
FWHM
FWHM
object
design residual
diffraction
Spot diameter
(micron)
(micron)
(micron)
(micron)
0.75
0.536
0.750
1.19
0.75
0.532
0.825
1.24
0.75
0.528
0.908
1.29
0.75
0.525
0.998
1.35
0.75
0.523
1.098
1.43
0.75
0.521
1.208
1.51
0.75
0.519
1.329
1.61
0.75
0.518
1.462
1.72
0.75
0.516
1.608
1.85
0.75
0.515
1.768
1.99
0.75
0.513
1.945
2.15
0.75
0.511
2.140
2.32
0.75
0.510
2.354
2.52
0.75
0.508
2.589
2.74
0.75
0.506
2.848
2.99
0.75
0.504
3.133
3.26
0.75
0.501
3.446
3.56
0.75
0.498
3.791
3.90
0.75
0.495
4.170
4.27
0.75
0.490
4.587
4.67
0.75
0.485
5.046
5.12
0.75
0.479
5.550
5.62
0.75
0.471
6.105
6.17
0.75
0.461
6.716
6.77
0.75
0.450
7.387
7.44
0.75
0.435
8.126
8.17
12
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
2.00
5.00
U
N
I
V
E
R
S
I
T
Y
9
8
7
FWHM (micron)
6
object
design residual
diffraction
image
5
4
3
2
1
0
0.00
1.00
3.00
4.00
6.00
wavelength (micron)
21 July 2015
13
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
PSF
21 July 2015
14
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
10 x 10 pixel field ( = 5 mm)
21 July 2015
15
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Flux Equation
F
T
QE
Toptics
Tvar
TPK50
Tfilter
A
ti
2hc2
5
1
e
hc / kT
1
(QE)(Toptics )(Tvar )TPK 50T filterAti
photons
=temperature of source
=absolute quantum efficiency of detector
=transmission of window, mirrors, and central obscuration of the
focal reducer
=variable transmission at light guide exit port
=transmission of PK50 blocking filter
=transmission of bandpass filter
=solid angle subtended by entrance pupil at source
=area of emitting surface
=integration time
21 July 2015
16
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
T=300K
QE=
T(room)=
0.9
Magnification
M(f/10) =
1
M(f/1.5) =
0.15
Area of pixel
(microns^2)
450
entrance pupil
diameter
(mm)
969.96
entrance pupil
position
(mm)
9694.43
half angle
(radians)
0.0499
(degrees)
2.8568
solid angle
(steradians)
0.007809
300 K
Wavelength frequency
(microns)
(Hz)
0.50
6.000E+14
0.55
5.455E+14
0.61
4.959E+14
0.67
4.508E+14
0.73
4.098E+14
0.81
3.726E+14
0.89
3.387E+14
0.97
3.079E+14
1.07
2.799E+14
1.18
2.545E+14
1.30
2.313E+14
1.43
2.103E+14
1.57
1.912E+14
1.73
1.738E+14
1.90
1.580E+14
2.09
1.436E+14
2.30
1.306E+14
2.53
1.187E+14
2.78
1.079E+14
3.06
9.810E+13
3.36
8.919E+13
3.70
8.108E+13
4.07
7.371E+13
4.48
6.701E+13
4.92
6.092E+13
5.42
5.538E+13
Area (f/1.5)=
20000 microns^2
transmission after
central obscuration
of focal reducer=
0.8960
transmission after
w indow =
0.9400
transmission after
mirrors=
0.9039
efficiency (optics)
0.7613
Area (f/10)=
450 microns^2
electrons det
radiant exitance
photons emitted
pinhole-thru-det eff f/1.5
(W/m^2 - micron - ster) (#/m^2 s - micron - ster) (PK50 only)
(#/s - micron)
7.864E-33
1.978E-14
9.34E-01
1.977E-24
3.008E-29
8.322E-11
9.34E-01
8.317E-21
5.204E-26
1.584E-07
9.34E-01
1.583E-17
4.378E-23
1.466E-04
9.34E-01
1.465E-14
1.912E-20
7.041E-02
9.34E-01
7.038E-12
4.601E-18
1.864E+01
9.34E-01
1.863E-09
6.441E-16
2.870E+03
9.34E-01
2.868E-07
5.509E-14
2.700E+05
9.34E-01
2.699E-05
3.012E-12
1.624E+07
9.34E-01
1.623E-03
1.096E-10
6.499E+08
9.34E-01
6.495E-02
2.754E-09
1.796E+10
9.34E-01
1.795E+00
4.943E-08
3.547E+11
9.34E-01
3.545E+01
6.535E-07
5.159E+12
9.34E-01
5.156E+02
6.543E-06
5.681E+13
9.11E-01
5.539E+03
5.088E-05
4.860E+14
8.67E-01
4.506E+04
3.144E-04
3.303E+15
8.09E-01
2.861E+05
1.576E-03
1.822E+16
6.94E-01
1.353E+06
6.538E-03
8.312E+16
5.51E-01
4.904E+06
2.282E-02
3.191E+17
8.54E-02
2.917E+06
6.806E-02
1.047E+18
1.25E-05
1.396E+03
1.760E-01
2.978E+18
1.95E-07
6.215E+01
3.998E-01
7.442E+18
3.30E-07
2.627E+02
8.072E-01
1.653E+19
3.72E-10
6.583E-01
1.464E+00
3.298E+19
8.18E-12
2.885E-02
2.409E+00
5.968E+19
3.67E-12
2.346E-02
3.628E+00
9.887E+19
6.53E-20
6.913E-10
scale
21 July 2015
1.1
17
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
T=3250K
T(filament,max)=
3250 K
light guide eff
P(bulb,max)=
150 W
T(filament, var)=
928.6681397 K
P(bulb, var)=
1.000 W
Area(filament)=
2.371E-05 m^2
pinhole diam=
5.000E-06 m
bulb exit port diam=
5.540E-03 m
Filament-thrupinhole efficiency=
8.146E-07
variable efficiency
at exit port
0.2000
21 July 2015
0.7000
0.6800
0.6700
0.6800
0.6850
0.6850
0.6900
0.7000
0.7000
0.7000
0.5000
0.5300
0.4500
0.2000
0.1000
0.0900
0.0100
0.0100
0.0100
0.0100
0.0100
0.0100
0.0100
0.0100
0.0100
0.0100
photons emitted
photons thru pinhole
electrons detected
(#/s - micron - ster) (#/s - micron)
(e-/s - micron - pix)
7.770E+09
6.329E+03
8.100E+02
8.893E+10
7.244E+04
9.271E+03
7.877E+11
6.416E+05
8.212E+04
5.528E+12
4.502E+06
5.763E+05
3.139E+13
2.556E+07
3.272E+06
1.470E+14
1.197E+08
1.533E+07
5.779E+14
4.707E+08
6.025E+07
1.938E+15
1.578E+09
2.020E+08
5.623E+15
4.580E+09
5.862E+08
1.430E+16
1.165E+10
1.491E+09
3.229E+16
2.630E+10
3.367E+09
6.539E+16
5.326E+10
6.817E+09
1.200E+17
9.771E+10
1.251E+10
2.012E+17
1.639E+11
2.046E+10
3.109E+17
2.533E+11
3.008E+10
4.463E+17
3.635E+11
4.032E+10
5.989E+17
4.878E+11
4.639E+10
7.562E+17
6.160E+11
4.653E+10
9.036E+17
7.360E+11
8.617E+09
1.027E+18
8.367E+11
1.429E+06
1.117E+18
9.095E+11
2.430E+04
1.166E+18
9.495E+11
4.292E+04
1.174E+18
9.560E+11
4.876E+01
1.144E+18
9.319E+11
1.044E+00
1.083E+18
8.825E+11
4.443E-01
1.000E+18
8.146E+11
7.294E-09
18
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
21 July 2015
NGST Detector Characterization
19
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
1.00
1.00
0.80
0.80
0.60
0.40
0.20
0.00
0.00
2.00
4.00
w avelength (m icron)
21 July 2015
U
N
I
V
E
R
S
I
T
Y
light guide
transmission
transmission
PK50
JOHNS HOPKINS
0.60
0.40
0.20
0.00
0.00
6.00
20
2.00
4.00
w avelength (m icron)
Intra-pixel Sensitivity PDR
6.00
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Johnson-R
electrons detected
electrons detected
per integration (room ) per integration (filam ent) total electrons det contrast (pinhole/plate)
0.001 s (e-/int - micron - pix)
(e-/int - micron - pix)
(e-/int - pix)
2.675E-32
6.536E+00
2.444E+32
T(filam ent, var)=
3.151E-25
3.048E+04
1.524E+03
9.675E+28
2936.706512 K
1.092E-20
1.154E+05
6.347E+03
1.056E+25
1.377E-17
2.244E+05
1.357E+04
1.629E+22
P(bulb, var)=
6.334E-15
2.868E+05
1.909E+04
4.529E+19
100.00 W
6.520E-13
1.402E+05
1.026E+04
2.150E+17
1.434E-11
2.383E+04
1.919E+03
1.662E+15
variable efficiency
2.699E-12
5.399E+01
4.782E+00
2.000E+13
at exit port=
1.623E-10
5.849E+01
5.699E+00
3.604E+11
1.00E-05
6.495E-09
6.087E+01
6.524E+00
9.372E+09
1.795E-07
6.112E+01
7.206E+00
3.404E+08
Wavelength transm ission
(microns)
0.50
0.0001
0.55
0.2800
0.61
0.6900
0.67
0.9400
0.73
0.9000
0.81
0.3500
0.89
0.0500
0.97
0.0001
1.07
0.0001
1.18
0.0001
1.30
0.0001
Int-tim e=
1.43
0.0001
3.545E-06
5.944E+01
7.708E+00
1.677E+07
1.57
0.0001
5.156E-05
5.617E+01
8.013E+00
1.089E+06
1.73
0.0001
5.539E-04
5.047E+01
7.921E+00
9.113E+04
1.90
0.0001
1.2
4.506E-03
4.325E+01
7.466E+00
9.597E+03
2.09
0.0001
1
2.861E-02
3.565E+01
6.775E+00
1.246E+03
2.30
0.0001
1.353E-01
2.651E+01
5.566E+00
1.960E+02
2.53
0.0001
4.904E-01
1.798E+01
4.245E+00
3.668E+01
2.78
0.0001
0.6
2.917E-01
2.347E+00
6.668E-01
8.045E+00
3.06
0.0001
0.4
1.396E-04
2.847E-04
1.179E-04
2.039E+00
3.36
0.0001
6.215E-06
3.665E-06
3.021E-06
5.897E-01
3.70
0.0001
2.627E-05
5.052E-06
1.054E-05
1.923E-01
4.07
0.0001
6.583E-08
4.605E-09
2.606E-08
6.995E-02
4.48
0.0001
2.885E-09
8.112E-11
1.207E-09
2.811E-02
4.92
0.0001
2.346E-09
2.903E-11
1.064E-09
1.237E-02
5.42
0.0001
6.913E-17
4.087E-19
in-band flux/out of band flux=
1.560E+03
3.425E-17
sum=
5.279E+04
5.912E-03
transmission
Johnson R
0.8
0.2
21 July 2015
0
0
2
4
6
8
w avelength (m icron)
10
12
21
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Johnson-R
electrons/int - micron - pix
1.000E+06
plate
pinhole
1.000E+04
1.000E+02
1.000E+00
1.000E-02
1.000E-04
1.000E-06
1.000E-08
1.000E-10
0.00
1.00
2.00
3.00
4.00
5.00
6.00
wavelength (micron)
21 July 2015
22
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Johnson-I
electrons detected
electrons detected
per integration (room ) per integration (filam ent) total electrons det contrast (pinhole/plate)
0.001 s (e-/int - micron - pix)
(e-/int - micron - pix)
(e-/int - pix)
1.977E-31
3.724E+00
1.884E+31
T(filam ent, var)=
8.317E-28
6.528E+00
3.264E-01
7.849E+27
2777.365542 K
1.583E-24
1.050E+01
5.778E-01
6.636E+24
1.465E-21
1.564E+01
9.462E-01
1.068E+22
P(bulb, var)=
2.534E-15
7.810E+04
5.198E+03
3.083E+19
80.00 W
1.807E-12
2.738E+05
2.005E+04
1.515E+17
2.725E-10
3.293E+05
2.652E+04
1.208E+15
variable efficiency
1.457E-08
2.181E+05
1.932E+04
1.496E+13
at exit port=
1.136E-07
3.141E+04
3.061E+03
2.765E+11
1.00E-05
6.495E-07
4.779E+03
5.122E+02
7.358E+09
1.795E-07
4.898E+01
5.775E+00
2.728E+08
3.545E-06
4.851E+01
6.292E+00
1.368E+07
5.156E-05
4.660E+01
6.648E+00
9.038E+05
5.539E-04
4.249E+01
6.667E+00
7.671E+04
Johnson I
4.506E-03
3.688E+01
6.366E+00
8.183E+03
2.861E-02
3.075E+01
5.845E+00
1.075E+03
1.353E-01
2.310E+01
4.853E+00
1.707E+02
4.904E-01
1.581E+01
3.745E+00
3.224E+01
2.917E-01
2.079E+00
5.992E-01
7.129E+00
1.396E-04
2.540E-04
1.094E-04
1.820E+00
6.215E-06
3.291E-06
2.907E-06
5.295E-01
2.627E-05
4.562E-06
1.037E-05
1.736E-01
6.583E-08
4.178E-09
2.590E-08
6.347E-02
2.885E-09
7.391E-11
1.204E-09
2.562E-02
5
10
15
2.346E-09
2.655E-11
1.062E-09
1.132E-02
6.913E-17
3.751E-19
3.423E-17
5.426E-03
w avelength (m icron)
in-band flux/out of band flux=
sum=
1.657E+00
7.470E+04
Int-tim e=
1.2
1
transmission
Wavelength transm ission
(microns)
0.50
0.0001
0.55
0.0001
0.61
0.0001
0.67
0.0001
0.73
0.3600
0.81
0.9700
0.89
0.9500
0.97
0.5400
1.07
0.0700
1.18
0.0100
1.30
0.0001
1.43
0.0001
1.57
0.0001
1.73
0.0001
1.90
0.0001
2.09
0.0001
2.30
0.0001
2.53
0.0001
2.78
0.0001
3.06
0.0001
3.36
0.0001
3.70
0.0001
4.07
0.0001
4.48
0.0001
4.92
0.0001
5.42
0.0001
0.8
0.6
0.4
0.2
0
-0.2 0
21 July 2015
23
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Johnson-I
electrons/int - micron - pix
1.000E+06
plate
pinhole
1.000E+04
1.000E+02
1.000E+00
1.000E-02
1.000E-04
1.000E-06
1.000E-08
1.000E-10
0.00
1.00
2.00
3.00
4.00
5.00
6.00
wavelength (micron)
21 July 2015
24
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
J
electrons detected
electrons detected
per integration (room ) per integration (filam ent) total electrons det contrast (pinhole/plate)
0.001 s (e-/int - micron - pix)
(e-/int - micron - pix)
(e-/int - pix)
1.977E-31
4.050E-06
2.049E+25
T(filam ent, var)=
8.317E-28
4.636E-05
2.318E-06
5.573E+22
928.6681397 K
1.583E-24
4.106E-04
2.258E-05
2.594E+20
1.465E-21
2.881E-03
1.743E-04
1.967E+18
P(bulb, var)=
7.038E-19
1.636E-02
1.089E-03
2.325E+16
1.00 W
1.863E-16
7.663E-02
5.609E-03
4.113E+14
2.868E-14
3.013E-01
2.426E-02
1.050E+13
variable efficiency
2.699E-12
1.010E+00
8.948E-02
3.743E+11
at exit port=
1.623E-10
2.931E+00
2.856E-01
1.806E+10
transm ission
Int-tim e=
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.8170
5.307E-05
6.093E+04
6.530E+03
1.148E+09
0.8680
1.00E-02
1.558E-03
1.461E+05
1.723E+04
9.376E+07
0.0001
3.819E-06
3.672E+01
4.762E+00
9.615E+06
0.0001
5.156E-05
6.253E+01
8.921E+00
1.213E+06
0.0001
5.539E-04
1.023E+02
1.605E+01
1.847E+05
4.506E-03
1.504E+02
2.596E+01
3.337E+04
100
2.861E-02
2.016E+02
3.828E+01
7.046E+03
80
1.353E-01
2.319E+02
4.847E+01
1.714E+03
0.0001
0.0001
0.0001
J
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
0.0001
4.904E-01
2.327E+02
5.357E+01
4.745E+02
60
2.917E-01
4.308E+01
1.096E+01
1.477E+02
40
1.396E-04
7.144E-03
2.025E-03
5.118E+01
6.215E-06
1.215E-04
3.906E-05
1.955E+01
2.627E-05
2.146E-04
8.103E-05
8.169E+00
6.583E-08
2.438E-07
1.146E-07
3.703E+00
2.885E-09
5.221E-09
3.299E-09
1.809E+00
2.346E-09
2.222E-09
2.045E-09
9.468E-01
6.913E-17
3.647E-17
in-band flux/out of band flux=
1.943E+02
5.201E-17
sum=
2.396E+04
5.276E-01
20
0
-20
0.9
0.0001
21 July 2015
1
1.1
1.2
1.3
1.4
1.5
25
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
J
electrons/ int - microcn - pix
1.000E+06
plate
pinhole
1.000E+04
1.000E+02
1.000E+00
1.000E-02
1.000E-04
1.000E-06
1.000E-08
1.000E-10
0.00
1.00
2.00
3.00
4.00
5.00
6.00
wavelength (micron)
21 July 2015
26
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
H
electrons detected
electrons detected
per integration (room ) per integration (filam ent) total electrons det contrast (pinhole/plate)
0.001 s (e-/int - micron - pix)
(e-/int - micron - pix)
(e-/int - pix)
1.977E-31
1.719E+00
8.695E+30
T(filam ent, var)=
8.317E-28
3.232E+00
1.616E-01
3.886E+27
2584.629868 K
1.583E-24
5.544E+00
3.049E-01
3.502E+24
1.465E-21
8.747E+00
5.292E-01
5.971E+21
P(bulb, var)=
7.038E-19
1.279E+01
8.512E-01
1.817E+19
60.00 W
1.863E-16
1.746E+01
1.278E+00
9.371E+16
2.868E-14
2.238E+01
1.802E+00
7.802E+14
variable efficiency
2.699E-12
2.712E+01
2.402E+00
1.005E+13
at exit port=
1.623E-10
3.121E+01
3.041E+00
1.923E+11
1.00E-05
6.495E-09
3.431E+01
3.677E+00
5.283E+09
1.795E-07
3.618E+01
4.266E+00
2.015E+08
Wavelength transm ission
(microns)
0.50
0.0001
0.55
0.0001
0.61
0.0001
0.67
0.0001
0.73
0.0001
0.81
0.0001
0.89
0.0001
0.97
0.0001
1.07
0.0001
1.18
0.0001
1.30
0.0001
Int-tim e=
1.43
0.0254
9.018E-04
9.351E+03
1.213E+03
1.037E+07
1.57
0.8843
4.559E-01
3.195E+05
4.557E+04
7.006E+05
1.73
0.8666
4.800E+00
2.913E+05
4.571E+04
6.069E+04
1.90
0.0003
1.238E-02
8.159E+01
1.409E+01
6.591E+03
2.09
0.0001
100
2.861E-02
2.517E+01
4.784E+00
8.798E+02
2.30
0.0001
80
1.353E-01
1.918E+01
4.033E+00
1.417E+02
2.53
0.0001
4.904E-01
1.329E+01
3.166E+00
2.710E+01
2.78
0.0001
2.917E-01
1.767E+00
5.204E-01
6.059E+00
3.06
0.0001
1.396E-04
2.180E-04
9.942E-05
1.562E+00
3.36
0.0001
6.215E-06
2.849E-06
2.772E-06
4.585E-01
3.70
0.0001
2.627E-05
3.980E-06
1.018E-05
1.515E-01
4.07
0.0001
0
6.583E-08
3.670E-09
2.572E-08
5.575E-02
4.48
0.0001
-20
2.885E-09
6.532E-11
1.201E-09
2.264E-02
4.92
0.0001
2.346E-09
2.359E-11
1.061E-09
1.005E-02
5.42
0.0001
6.913E-17
3.349E-19
in-band flux/out of band flux=
1.824E+03
3.421E-17
sum=
9.254E+04
4.844E-03
21 July 2015
H
60
40
20
1.2
1.4
1.6
1.8
2
2.2
27
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
H
electron/int - micron - pix
1.000E+06
plate
pinhole
1.000E+04
1.000E+02
1.000E+00
1.000E-02
1.000E-04
1.000E-06
1.000E-08
1.000E-10
0.00
1.00
2.00
3.00
4.00
5.00
6.00
wavelength (micron)
21 July 2015
28
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
K
electrons detected
electrons detected
per integration (room ) per integration (filam ent) total electrons det contrast (pinhole/plate)
0.001 s (e-/int - micron - pix)
(e-/int - micron - pix)
(e-/int - pix)
1.977E-30
1.719E+01
8.69E+30
T(filam ent, var)=
8.317E-27
3.232E+01
1.616E+00
3.89E+27
2584.629868 K
1.583E-23
5.544E+01
3.049E+00
3.50E+24
1.465E-20
8.747E+01
5.292E+00
5.97E+21
P(bulb, var)=
7.038E-18
1.279E+02
8.512E+00
1.82E+19
60.00 W
1.863E-15
1.746E+02
1.278E+01
9.37E+16
2.868E-13
2.238E+02
1.802E+01
7.80E+14
variable efficiency
2.699E-11
2.712E+02
2.402E+01
1.00E+13
at exit port=
1.623E-09
3.121E+02
3.041E+01
1.92E+11
1.00E-05
6.495E-08
3.431E+02
3.677E+01
5.28E+09
1.795E-06
3.618E+02
4.266E+01
2.02E+08
3.545E-05
3.676E+02
4.767E+01
1.04E+07
5.156E-04
3.613E+02
5.153E+01
7.01E+05
5.539E-03
3.361E+02
5.274E+01
6.07E+04
K
4.724E+00
3.114E+04
5.376E+03
6.59E+03
Wavelength transm ission
(microns)
0.50
0.0010
0.55
0.0010
0.61
0.0010
0.67
0.0010
0.73
0.0010
0.81
0.0010
0.89
0.0010
0.97
0.0010
1.07
0.0010
1.18
0.0010
1.30
0.0010
1.43
0.0010
1.57
0.0010
1.73
0.0010
Int-tim e=
1.90
0.1048
2.09
0.9265
2.30
0.9580
2.53
0.2287
80
2.78
3.06
3.36
0.0010
3.70
0.0010
4.07
0.0010
4.48
0.0010
4.92
5.42
120
2.650E+02
2.332E+05
4.433E+04
8.80E+02
1.296E+03
1.837E+05
3.864E+04
1.42E+02
1.122E+03
3.040E+04
7.242E+03
2.71E+01
0.0010
60
2.917E+00
1.767E+01
5.204E+00
6.06E+00
0.0010
40
1.396E-03
2.180E-03
9.942E-04
1.56E+00
20
6.215E-05
2.849E-05
2.772E-05
4.58E-01
2.627E-04
3.980E-05
1.018E-04
1.51E-01
6.583E-07
3.670E-08
2.572E-07
5.58E-02
2.885E-08
6.532E-10
1.201E-08
2.26E-02
0.0010
2.346E-08
2.359E-10
1.061E-08
1.01E-02
0.0010
6.913E-16
3.349E-18
in-band flux/out of band flux=
1.549E+02
3.421E-16
sum=
9.593E+04
4.84E-03
100
0
-20 1.7
21 July 2015
1.9
2.1
2.3
2.5
2.7
29
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
K
electron/ int - micron - pix
1.000E+06
plate
pinhole
1.000E+04
1.000E+02
1.000E+00
1.000E-02
1.000E-04
1.000E-06
1.000E-08
1.000E-10
0.00
1.00
2.00
3.00
4.00
5.00
6.00
wavelength (micron)
21 July 2015
30
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
L’
electrons detected
electrons detected
per integration (room ) per integration (filam ent) total electrons det contrast (pinhole/plate)
0.001 s (e-/int - micron - pix)
(e-/int - micron - pix)
(e-/int - pix)
1.977E-31
4.050E-04
2.049E+27
T(filam ent, var)=
8.317E-28
4.636E-03
2.318E-04
5.573E+24
928.6681397 K
1.583E-24
4.106E-02
2.258E-03
2.594E+22
1.465E-21
2.881E-01
1.743E-02
1.967E+20
P(bulb, var)=
7.038E-19
1.636E+00
1.089E-01
2.325E+18
1.00 W
1.863E-16
7.663E+00
5.609E-01
4.113E+16
2.868E-14
3.013E+01
2.426E+00
1.050E+15
variable efficiency
2.699E-12
1.010E+02
8.948E+00
3.743E+13
at exit port=
1.623E-10
2.931E+02
2.856E+01
1.806E+12
1.00E+00
6.495E-09
7.457E+02
7.992E+01
1.148E+11
1.795E-07
1.683E+03
1.985E+02
9.376E+09
3.545E-06
3.409E+03
4.421E+02
9.615E+08
5.156E-05
6.253E+03
8.921E+02
1.213E+08
5.539E-04
1.023E+04
1.605E+03
1.847E+07
L'
Wavelength transm ission
(microns)
0.50
0.0001
0.55
0.0001
0.61
0.0001
0.67
0.0001
0.73
0.0001
0.81
0.0001
0.89
0.0001
0.97
0.0001
1.07
0.0001
1.18
0.0001
1.30
0.0001
1.43
0.0001
1.57
0.0001
1.73
0.0001
1.90
0.0001
2.09
0.0001
2.30
0.0001
2.53
0.0001
2.78
0.0001
3.06
0.0009
3.36
0.1401
3.70
0.9159
4.07
0.8907
4.48
0.0040
4.92
0.0054
5.42
0.1000
Int-tim e=
100
90
80
70
60
50
40
30
20
10
0
21 July 2015
3
3.5
4
4.5
5
31
4.506E-03
1.504E+04
2.596E+03
3.337E+06
2.861E-02
2.016E+04
3.827E+03
7.046E+05
1.353E-01
2.319E+04
4.844E+03
1.714E+05
4.904E-01
2.327E+04
5.346E+03
4.745E+04
2.917E-01
4.308E+03
1.089E+03
1.477E+04
1.252E-03
6.408E+00
1.782E+00
5.118E+03
8.708E-03
1.703E+01
5.209E+00
1.955E+03
2.406E-01
1.966E+02
6.620E+01
8.169E+02
5.863E-04
2.171E-01
8.056E-02
3.703E+02
1.142E-07
2.066E-05
8.454E-06
1.809E+02
1.271E-07
1.203E-05
5.444E-06
9.468E+01
6.913E-14
3.647E-12
in-band flux/out of band flux=
1.967E-03
1.830E-12
sum=
2.103E+04
5.276E+01
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
L’
electron/ int - micron - pix
1.000E+06
plate
pinhole
1.000E+04
1.000E+02
1.000E+00
1.000E-02
1.000E-04
1.000E-06
1.000E-08
1.000E-10
0.00
1.00
2.00
3.00
4.00
5.00
6.00
wavelength (micron)
21 July 2015
32
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
M’
electrons detected
electrons detected
per integration (room ) per integration (filam ent) total electrons det contrast (pinhole/plate)
0.01 s (e-/int - micron - pix)
(e-/int - micron - pix)
(e-/int - pix)
1.977E-30
4.050E-04
2.049E+26
T(filam ent, var)=
8.317E-27
4.636E-03
2.318E-04
5.573E+23
928.6681397 K
1.583E-23
4.106E-02
2.258E-03
2.594E+21
1.465E-20
2.881E-01
1.743E-02
1.967E+19
P(bulb, var)=
7.038E-18
1.636E+00
1.089E-01
2.325E+17
1.000 W
1.863E-15
7.663E+00
5.609E-01
4.113E+15
2.868E-13
3.013E+01
2.426E+00
1.050E+14
variable efficiency
2.699E-11
1.010E+02
8.948E+00
3.743E+12
at exit port=
1.623E-09
2.931E+02
2.856E+01
1.806E+11
1.00E-01
6.495E-08
7.457E+02
7.992E+01
1.148E+10
1.795E-06
1.683E+03
1.985E+02
9.376E+08
3.545E-05
3.409E+03
4.421E+02
9.615E+07
5.156E-04
6.253E+03
8.921E+02
1.213E+07
M'
5.539E-03
1.023E+04
1.605E+03
1.847E+06
Wavelength transm ission
(microns)
0.50
0.0001
0.55
0.0001
0.61
0.0001
0.67
0.0001
0.73
0.0001
0.81
0.0001
0.89
0.0001
0.97
0.0001
1.07
0.0001
1.18
0.0001
1.30
0.0001
1.43
0.0001
1.57
0.0001
1.73
0.0001
1.90
0.0001
2.09
0.0001
2.30
0.0001
2.53
0.0001
2.78
0.0001
3.06
0.0001
3.36
0.0001
3.70
0.0001
4.07
0.0399
4.48
0.8500
4.92
0.8500
5.42
0.2464
Int-tim e=
100
90
80
70
60
50
40
30
20
10
0
21 July 2015
4
4.5
5
5.5
33
4.506E-02
1.504E+04
2.596E+03
3.337E+05
2.861E-01
2.016E+04
3.827E+03
7.046E+04
1.353E+00
2.319E+04
4.845E+03
1.714E+04
4.904E+00
2.327E+04
5.347E+03
4.745E+03
2.917E+00
4.308E+03
1.090E+03
1.477E+03
1.396E-03
7.144E-01
1.990E-01
5.118E+02
6.215E-05
1.215E-02
3.735E-03
1.955E+02
2.627E-04
2.146E-02
7.308E-03
8.169E+01
2.627E-04
9.727E-03
3.696E-03
3.703E+01
2.453E-04
4.438E-03
1.906E-03
1.809E+01
1.994E-04
1.888E-03
9.348E-04
9.468E+00
1.703E-12
8.986E-12
5.264E-12
5.276E+00
in-band flux/out of band flux=
5.819E-08
sum=
2.096E+04
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
M’
electron/ int - micron - pix
1.000E+06
1.000E+04
1.000E+02
1.000E+00
1.000E-02
1.000E-04
1.000E-06
plate
pinhole
1.000E-08
1.000E-10
0.00
1.00
2.00
3.00
4.00
5.00
6.00
wavelength (micron)
21 July 2015
34
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Software Requirements
• Integrated control software
–
–
–
–
exposure (multi-plane FITS)
filter wheels
3D stage
light source (on/off and intensity)?
• Analysis software
– data reduction pipeline
– IDL
21 July 2015
35
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
JOHNS HOPKINS
NGST Detector Characterization
U
N
I
V
E
R
S
I
T
Y
Designs
•
Light source
- Coherent quartz tungsten halogen
-150W/3250K
- Variable intensity
•
Light guide
- Coherent 24” multi-fiber gooseneck
- 5.54mm exit port diameter
•
Pinhole
- 5 mm diameter in a 1” retaining ring mount
•
3-axis stage
- 3 Newport compact motorized translation stages
- Newport motion controller
•
Window
- 110mm
- 10mm thickness
- Mounted in end plate of dewar.
•
Filters
- Johnson-R, Johnson-I, J, H, K, L’, M’, PK50
21 July 2015
36
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Designs (cont’d)
•
Offner relay
- Re-images source 1:1 onto detector
– Allows decent imaging at f/10 over full 2K2 field
– Provides excellent imaging over a smaller central region
– Compact, folded design fits available space
– All reflective optical design is free from chromatic aberration
•
Focal reducer - Produces f/1.5 beam for sub-pixel imaging
– At f/10, diffraction-limited FWHM = 22.6 mm ( = 2.2 mm)
– At f/1.5, diffraction-limited FWHM is = 3.4 mm ( = 2.2 mm)
– Single-element optic with 4 different surface radii (2 elliptical, 2
spherical)
– Reflective coatings on the two elliptical surfaces
– Parfocal with f/10 beam, designed to reside in a filter wheel
– Provides subpixel imaging over a 10 pixel diameter region
21 July 2015
37
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Designs
21 July 2015
38
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Hardware Set-up
•
•
•
3-axis motion stages are assembled and attached to
the motion driver
Pinhole and light source needs to be attached to
3-axis stage
Flux from light guide exit port must be variable
21 July 2015
39
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Notes on Schedule
• Some hardware not ordered yet
• Anticipate that the hardware will be complete no
earlier than December
21 July 2015
40
Intra-pixel Sensitivity PDR
SPACE
TELESCOPE
SCIENCE
INSTITUTE
NGST Detector Characterization
JOHNS HOPKINS
U
N
I
V
E
R
S
I
T
Y
Open Issues
•
Controlling efficiency at the light guide exit port
– This has implications for the pinhole/stage design
•
M’ filter bandwidth
– How to suppress flux for wavelength < 4 mm ?
•
Monochromator vs. Filters
– Cost
– Time
21 July 2015
41
Intra-pixel Sensitivity PDR