A prototype detector based on thin-walled segmented tubes has been developed and its parameters have been studied. The detector contains 360 registration channels with a straw diameter of 4
mm. The ...prototype’ granularity is 4
сm
2 and the length of insensitive region due to straw internal elements is less than 5% of its full sensitive area. Deterioration of the spatial resolution near these elements is observed for 1.0% of the detector sensitive area. The time and spatial parameters of the detector do not differ from those of conventional tracking detectors based on drift tubes.
Spatial resolution of thin-walled high-pressure drift tubes Davkov, V.I.; Gregor, I.; Haas, D. ...
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment,
04/2011, Letnik:
634, Številka:
1
Journal Article
Recenzirano
A small prototype detector based on high pressure thin-walled tubes (straws) has been developed and its parameters have been studied on a bench at JINR, Dubna, and SPS at CERN. The inner diameter of ...the straws is 9.53
mm. The pressure of the active gas mixture Ar/CO
2 (80/20) was varied from 1 to 5
bar. The best spatial resolution achieved in this pressure range is ∼40
μm. Both the high efficiency and high rate capability are retained.
