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saldkhn lkbgfjklbkflbgf = Detectors information =

[[Nika2Run5|Back to the NIKA2 Run 5 main page]] <<BR>>
[[Nika2Run6|Back to the NIKA2 Run 6 main page]]

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REMEMBER: in the cryostat the polariser has horizontal wires. It means that the array 260GHz in transmission is sensitive to a polarisation vertical (E field vertical wrt the input window of the cryostat). The array 260GHz in reflection on the other hand is sensitive to a polarisation horizontal (E field horizontal wrt the input window of the cryostat).


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=== 260 GHz band H (reflection) "array 1" ===
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'''Array:''' 1mm_MSv1_02 - Al 18nm PTA

'''Pixels:''' 1140 pixels 2x2mm

'''Cold electronics:''' 8 amplifiers TTI Norte 2-3GHz (192.168.1.92, IN/OUT 5-12, E-F-G......L)

'''Warm electronics:''' "NIKA1" AMC rack, equipped with 8 cards, (synthesizer 2, 192.168.1.192, +10dBm), LO = 1.885GHz

'''Optics and spectrum:''' HDPE window and lenses with AR coating made with "pyramidal corrugations".

{{attachment:1mmHspectrum.jpg||height=415}}

<<BR>>

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=== 150 GHz band ===
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'''Array:''' 2mm_MSv0_02 (tested in run N1.5_030)

'''Pixels:''' 616 pixels, 2.75x2.75mm

'''Cold electronics:''' 4 Yebes L-band (1.2-1.8GHz) modified InP on channels 1,2 and 4. A classical L-band GaAs on channel 3. Controller amplis 192.168.1.93, IN/OUT 5-12, E-F-G......L

'''Warm electronics:''' "NIKA2" AMC rack, equipped with 4 cards, (synthesizer 8, 192.168.1.198, +7dBm), LO = 0.945GHz

'''Optics and spectrum:''' HDPE window and lenses with AR coating made with "pyramidal corrugations". New air-gap dichroic (flat). The spectrum is relatively flat between 145 and 165 GHz and has FWHM=130-170GHz. The central frequency is comprised between 150 and 155 GHz. WARNING: this spectrum measured in NIKA1.5 equipped with the same band-defining filter stack. However, the high-frequency filters and the lenses are not the same. We had no choice, NIKA2 was already gone..

{{attachment:2mmnewspec.jpg||height=415}}

NIKA2 polarization run preparation notes

Detectors information

Back to the NIKA2 Run 5 main page
Back to the NIKA2 Run 6 main page


REMEMBER: in the cryostat the polariser has horizontal wires. It means that the array 260GHz in transmission is sensitive to a polarisation vertical (E field vertical wrt the input window of the cryostat). The array 260GHz in reflection on the other hand is sensitive to a polarisation horizontal (E field horizontal wrt the input window of the cryostat).


260 GHz band H (reflection) "array 1"


Array: 1mm_MSv1_02 - Al 18nm PTA

Pixels: 1140 pixels 2x2mm

Cold electronics: 8 amplifiers TTI Norte 2-3GHz (192.168.1.92, IN/OUT 5-12, E-F-G......L)

Warm electronics: "NIKA1" AMC rack, equipped with 8 cards, (synthesizer 2, 192.168.1.192, +10dBm), LO = 1.885GHz

Optics and spectrum: HDPE window and lenses with AR coating made with "pyramidal corrugations".

[ATTACH]



150 GHz band


Array: 2mm_MSv0_02 (tested in run N1.5_030)

Pixels: 616 pixels, 2.75x2.75mm

Cold electronics: 4 Yebes L-band (1.2-1.8GHz) modified InP on channels 1,2 and 4. A classical L-band GaAs on channel 3. Controller amplis 192.168.1.93, IN/OUT 5-12, E-F-G......L

Warm electronics: "NIKA2" AMC rack, equipped with 4 cards, (synthesizer 8, 192.168.1.198, +7dBm), LO = 0.945GHz

Optics and spectrum: HDPE window and lenses with AR coating made with "pyramidal corrugations". New air-gap dichroic (flat). The spectrum is relatively flat between 145 and 165 GHz and has FWHM=130-170GHz. The central frequency is comprised between 150 and 155 GHz. WARNING: this spectrum measured in NIKA1.5 equipped with the same band-defining filter stack. However, the high-frequency filters and the lenses are not the same. We had no choice, NIKA2 was already gone..

[ATTACH]

NIKA2_polarization_commissioning_guidelines

GoalsPrepStaffNika2Run11 (last edited 2017-06-10 12:31:58 by NikaBolometer)