Progress report on the SLD cerenkov ring imaging detector
We describe test beam results from a prototype cerenkov Ring Imaging Detector (CRID) for the SLD experiment at the SLAC Linear Collider (SLC). The system includes both liquid and gas radiators, a long drift box containing gaseous TMAE and a proportional wire chamber with charge division readout. Measurements of the multiplicity and detection resolution of cerenkov photons, from both radiators are presented. Various design aspects of a new engineering prototype, currently under construction, are discussed and recent R&D results relevant to this effort are reported.
Charge Division Using Carbon Filaments for Obtaining Coordinate Information from Detection of Single Electrons
Seven micron diameter Carbon filaments forming the anode of a multiwire proportional chamber have been used to detect single electrons. Charge division techniques applied to the 5 cm long wire resulted in a position resolution of ¿/L <2% for a collected signal charge of 30 fC.
Comparative Policies of Legal Provisions for Plant Closure: Strike a Balance?
The article aims to explore the extent to which and how plant closure laws strike a balance between job security and managerial prerogative and assess the practical effects of legal provisions. To achieve this aim, the forms of underlying doctrines of legal provisions, and substantial and procedural requirements are deliberately examined by cross-national (i.e. UK, Germany, and Japan) comparisons. The findings reveal that the legal provisions of the selected nations do not seek to diminish management rights to close plants down. Instead, they attempt to impose more democratic control over the liberty and mobility of capital by negotiating with and compensating the affected workers.