Yuzheng Wang, Guodong Wu, Liren Jiang, et al. A two dimensional multiwire proportional chamber imaging device with delay line readout[J]. Nuclear techniques, 1985, 08(5): 5-8,56.
Yuzheng Wang, Guodong Wu, Liren Jiang, et al. A two dimensional multiwire proportional chamber imaging device with delay line readout[J]. Nuclear techniques, 1985, 08(5): 5-8,56.DOI:
A two-dimensional multiwire proportional chamber (MWPC) imaging device with delay line readout is described. It consists of a multiwire proportional chamber
a delay line
a main amplifier
a timing single channel amplitude analyser and a time to amplitude converter. The MWPC is based on the gas flow of Ar-CO
2
. Its sensitive area is 20×20cm
2
. Spatial resolution is 2.06mm. A phase-compensated distributive parameter electromagnetic delay line is used. Its delay rate is 6.3ns/mm
the rise-time is 100 ns The time shift of the timer is 1 ns (for dynamic range 13:1) . The radioactive distribution of the
14
C labelled compounds on the paper chromatogram and photograph of the special ring model imaging are given.
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references
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