| Note |
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Please note that operations of the DESY Myon Detector requires experienced scientific staff on board. The system is not operated by the ship's crew. Announce operations with the DESY Myon Detector to AWI-Logistics prior to the cruise and clarify the data transfer after the cruise. In case of a system failure just reboot the computer (switch on). The data acquisition program will start automatically. |
Summary
Responsible Persons
Components
| Metadata (Metadata Plugin) |
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All components are in the Aerologie lab (A-108). The system consits of 2 sensor boxes, a data acquisiton system, GPS antenna and a netbook (Linux, Xubuntu 10.04).
In each sensor box is a scintillator, which emits scintillation light when charged particles transmit. The light is transmitted to the photosensor (silicium-photomultiplier by Hamamatsu) via optical fiber. A HV module within the box converts the 5V input power supply to the supply voltage of 70V for the photomultiplier. The signal of the photomultiplier is transmitted to the data acquisition unit. The data acquisition unit needs a 5V power supply, provides the 5V power supply for the sensor boxes, amplifies and links the signals from both boxes, produces and transfers data files via USB cable to the netbook, and faciltiates an input port for signal transmission from the GPS box.
The data acquisition unit and the GPS box are connected via LAN cable. The antenna is mounted in the corridor above the window.
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| Sensorweb integration |
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| urn | vessel:polarstern:myon_detector |
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| contenttype | Summary |
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The device detects cosmic particles (mainly myons) which are produced by the reaction of cosmic radiation with atomic nuclei or molecules in the upper atmosphere. The system consists of 2 sensor boxes, a data aquisiton system, GPS antenna and a netbook. |
| Sensorweb integration |
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| urn | vessel:polarstern:myon_detector |
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| contenttype | Metadata |
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| Manufacturer | DESY |
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| Model | |
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| Serial No. | n/a |
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| Type | small scale facility |
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| REGISTRY-Link | ↪ REGISTRY (1421) |
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| Sensorweb integration |
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| urn | vessel:polarstern:myon_detector |
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| contenttype | Images |
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 Image Added  Image Added |
Contacts
| Sensorweb integration |
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| urn | vessel:polarstern:myon_detector |
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| contenttype | Contacts |
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| Name | Institution | Role |
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| Michael Walter | Deutsche Elektronen-Synchrotron DESY | Principal Investigator |
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Components
| Metadata (Metadata Plugin) |
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Position
| Sensorweb integration |
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| urn | vessel:polarstern:myon_detector |
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| contenttype | LocalFrame |
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| Info | no xyz-position given, device located on deck A in room A112 | | X | 0.0 (no unit given)
(no description given) | | Y | 0.0 (no unit given)
(no description given) | | Z | 0.0 (no unit given)
(no description given) |
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Data logging, storage and archiving
Logged parameters
| Sensorweb integration |
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| urn | vessel:polarstern:myon_detector |
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| contenttype | Parameters |
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| Parameter | O2ARegistry Output Type | Unit |
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| amount of cosmic particles | amount | number |
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Central geographical ship's position and time standard
| Metadata (Metadata Plugin) |
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??? No online time needed for data acquisition. Time stamp needed to identify ship's position and weather data for offline processing. ??? |
| Metadata (Metadata Plugin) |
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??? No online position needed for data acquisition. Offline data processing is conducted with ship's position and weather data via time stamp??? |
Rawdata storage on board
| Metadata (Metadata Plugin) |
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Raw data is stored in ASCII files on SD memory card and USB stick connected to the netbook. A LAN cable connects the netbook to the data network of Polarstern. Data transfer to DESY per e-mail once a day.
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Dship
| Metadata (Metadata Plugin) |
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??? No data transfer to DShip. ??? |
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Data archiving on land
| Metadata (Metadata Plugin) |
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??? After the cruise, the operator transfers the measurement data along with required meta data to AWI after consultaion with the data scientist and AWI Logistics. Then, the data (including meta data) can be extracted from https://www.pangaea.de/ (for authorized users only). Offline data processing is conducted with ship's position and weather data via time stamp ??? |
Documentation
...
Documentation
The manuals are located in the folder at the detector on board.
| Sensorweb integration |
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| urn | vessel:polarstern:myon_detector |
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| contenttype | Resources |
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