3. On the installation of the ski boxes

Please take note of the regulations regarding working on (flat) roofs (i.e. keep a distance of more than 2 meters from the edge of the roof!). Sometimes these measures can not be met.

 
•    Careful! Pay attention when handling the bare detector. The glue connections (scintillator/light-guide and light-guide/PMT) are fragile and may easily break. Unrecoverable damage to the PMT may be the result.
•    Do not drill holes into (the bottom of) the ski box (except for the one that holds the cable transit at the higher end of the box). The transit is mounted inside the box (so only the nut at the bottom of the image will be on the outside of the ski box).
•    Do not place any additional weights inside the ski boxes.
•    When transporting the ski box, pay close attention whether the box is properly closed (three point lock!), while there is sufficient foam inside the box to prevent the sliding of the scintillator and light-guide (never leaf the key in the lock of the box, it may simply break away when hitting something!).
•    Keep the detectors horizontally during transportation; when tilted, the PMT always has to sit at the end in the highest position!

en schuimplastic platen (rechts) ter ondersteuning van de scintillator en lichtgeleider. Schuimplastic wordt ook gebruikt om de positie van de scintillator tijdens transport te fixeren

•    Remove the foam (Figure 3.4) that was inserted before transportation on top of the scintillator and light guide only then, when the detector has arrived at its final position.
•    Measure the precise distance between the GPS antenna and the ski boxes and make a sketch in which the North-South orientation of the ski boxes is determined by a compass. Include the sketch in the logbook and publish this information at the local web pages.