Table of Contents:
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Introduction
This is the CCD detector for the Calcium HK spectrometer.
The exposure time for this detector will be determined by the exposure meter system, and will not be known in advance. As such, this detector will be run in an ‘external exposure (bulb)’ mode that will allow an exposure to start when the trigger-in signal goes high, and stop the exposure when the trigger-in signal goes low. This mode is required as it allows the image to be read out after the trigger-in signal goes low.
This USB-connected device will be located within the AO Electronics room of Keck I. However, to decrease the heat load within AO on telescope, the computer it connects to will be located within the KI server room. To connect the two we use a USB-to-fiber optic link running from AO to the K1 server room. Note this scheme has the heritage of another Andor detector with same USB-to-fiber system already deployed at Keck and working fine (K2 ACAM).
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Relevant Devices
Description | Qty | Source | Part Number |
|---|---|---|---|
Ca HK Detector | 1 | Andor | Newton |
DU920P-BU |
Relevant Functional Block Diagram
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Software Actions
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Action
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SDK Command
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Purpose
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Notes
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Turn Cooler On
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CoolerON
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Turns cooler on.
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Needed for engineering.
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Turn Cooler Off
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CoolerOFF
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Turns cooler off.
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Needed for engineering.
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Required Adjustable Settings
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Setting
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When Needed
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Notes
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Build
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Observing
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Maintenance
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SetBaselineOffset
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Sets Bias level for CCD. Engineering-level change.
Required Telemetry
Parameters for image headers:
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Parameter (SDK Command)
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Purpose
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Notes
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| Code Block | ||
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GetCameraSerialNumber |
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Logs which hardware was used for the image.
Mainly useful if we have to replace the detector at some point (keeps track of which detector was used when)
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| Code Block |
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GetCurrentPreAmpGain |
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| Code Block |
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GetDetector |
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| Code Block |
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GetHardwareVersion |
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| Code Block |
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GetHeadModel |
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| Code Block |
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GetPixelSize |
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| Code Block |
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GetSoftwareVersion |
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| Code Block |
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GetUSBDeviceDetails |
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| Code Block |
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GetVersionInfo |
Parameters for KPF telemetry database:
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Parameter
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SDK Command
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Report Frequency
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Purpose
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Notes
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CCD Temperature
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| Code Block |
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GetTemperature |
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Monitor CCD temperature
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| Code Block |
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GetTemperaturePrecision |
command likely useful to find available precision from our Newton.
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Start-up Parameters
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Parameter (SDK Command)
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Purpose
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Notes
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SetBaselineClamp
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Enabling baseline clamp ensures that the bias level does not change between images.
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Ashley’s settings (to fold into tables above):
Horizontal Clock Speed: 0.5MHz
Vertical Clock Speed: 51.3 microseconds
Preamp Gain Setting: 2
Baseline Clamp: On
Subframe: We will end up taking a subframe in the horizontal 1024 pixel direction (not sure of the bounds currently)
Binning: 1x1, We will never bin in standard mode (but it wouldn’t hurt to have the option in case some unique user comes along)
Cooling: tbd on default
Required Alarms
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Parameter
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Threshold
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Notes
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Relevant Datasheets & Manuals
Description
File
Source
Andor Newton Manual
| View file | ||
|---|---|---|
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Email from Andor sales rep (Mike Zemlan)
-99C1
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USB Fiber Extender overview | 1 | Adnacom |  | |
USB-to-Fiber Adapter | 1 | Adnacom | R1USB30B-03 | |
Fiber | 1 | Adnacom | 10-m purchased for lab tests. Final, on-summit cable already installed through az-wrap at Keck. | |
Fiber-to-PCIe Adapter | 1 | Adnacom | H1A-02-LP |
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Relevant Functional Block Diagram
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Cable Details
Cable | Qty | Details |
|---|---|---|
BNC-to-SMB Cable | 1 |
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Relevant Hardware Datasheets & Manuals
Description | File | Source | |||||
|---|---|---|---|---|---|---|---|
| 1 | Andor Newton Manual |
| Email from Andor sales rep (Mike Zemlan) | ||||
| 2 | Adnaco-S3B Overview Datasheet |
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| 3 | Performance Benchmarking for Adnacom USB extensions |
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| 4 | Adnaco-S3B Quick Start Guide |
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| 5 | How to disable PCIe power management in Windows 7, 8 and 10 |
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| 6 | Adnaco-USB30B xHCI Filter Driver for Win8/8.1/10 (driver version 1.0.0.5) – sllc448a.zip |
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| 7 | Adnaco-USB30B xHCI Driver for WinXP/Vista/7 (driver version 1.16.6.0) – sllc423k.zip |
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| 8 | Adnaco-R1USB30 data sheet |
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| 9 | Adnaco-H1A data sheet |
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| 10 | Adnaco Gen2 Systems User’s Guide |
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| 11 | Keck drawing for USB-to-fiber adapter in use for K2 ACAM |  | Ben McCarney (WMKO) |
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Relevant Software
Description | File | Source | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Capability list for our Newton (terse and verbose versions) |
| Output from Will Deich’s query program | ||||||||
| 2 | Andor SDK 2 Manual Note SDK 2 is what we need as it’s for CCD detectors (SDK 3 is for CMOS detectors). |
| Direct link for these file sent by Andor sales rep (Mike Zemlan) | ||||||||
| 3 | Andor SDK 2 (for CCDs) for Linux |
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| 4 | Andor SDK 2 (for CCDs) for Windows |
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| 5 | Andor Solis Software (Windows) |
| Andor Tech Support (Mohammed Mustafees Khan) over Zoom chat |