The muon tracking system for the PHENUC detector at RHIC uses cathode strip chambers(CSC) for the tracking detectors. These detectors must provide 100 pm resolution per measurement plane to give satisfactory mass resolution of the vector mesons. The intermediate station (station 2) must have a very small radiation length, and large acceptance, We have prototyped a full scale ClSC chamber to test the use of 25 micron metalized mylar foils for the cathode strips at station 2. The full scale prototype detector is a trapezoid, 2.3 meters high and 2.3 meters wide. The foil and wire planes are mounted on thin 3.2 mm thick by 7.5 cm wide laminated frames and the tension of the planes is maintained by the two large 7.5cm wide x 3.0 cm thick aluminum support frames. The total radiation length of the active region is 8.5 x 10' .
The 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power (ESEFP) was held on 23 September 2017 in Kyoto, Japan. The workshop was initiated by the International Energy Agency Technology Collaboration Program on ESEFP. The workshop was well attended with approximately forty participants representing fifteen institutions in eight countries. The presentations covered safety issues and environmental impacts, availability improvement and risk control and socio-economic aspects of fusion power. Quantitative safety assessment of fusion reactors was discussed in depth with the consensus output presented as a plenary presentation at the 13th International Symposium on Fusion Nuclear Technology (ISFNT-13). The next workshop is planned to be held in conjunction with the ISFNT-14 in 2019.
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