Title :
Aging effects in low pressure wire chambers containing TMAE
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
fDate :
2/1/1988 12:00:00 AM
Abstract :
The effects of aging in multiwire proportional chambers operated at low pressure with gas mixtures containing TMAE has been studied in connection with their use as a form of readout of BaF2 crystals in high-rate environments. Aging was induced by ultraviolet light, which simulated high radiation exposure of BaF2 crystals. Measurements were made on the loss in gain as a function of the total charge removed from the anode wires under various operating conditions. The results indicate a considerable improvement over previous aging effects measured at atmospheric pressure.
Keywords :
position sensitive particle detectors; proportional counters; BaF2 crystals; TMAE; aging; high radiation exposure; high-rate environments; low pressure wire chambers; multiwire proportional chambers; total charge; ultraviolet light; Aging; Anodes; Atmospheric measurements; Atmospheric modeling; Charge measurement; Crystals; Current measurement; Gain measurement; Loss measurement; Wire;
Journal_Title :
Nuclear Science, IEEE Transactions on