TY - JOUR
T1 - Operation of an ion chamber consisting of lead plates immersed in 2,2,4,4-tetramethylpentane
AU - Poffenberger, P. R.
AU - Keeler, R. K.
AU - Birney, P. S.
AU - Bishop, S.
N1 - Funding Information:
This project was supported by grants from the Natural Science and Engineering Research Council of Canada.
PY - 1999/5/1
Y1 - 1999/5/1
N2 - A small test ion chamber has been constructed using 2,2,4,4 tetramethylpentane as the ionizing liquid and an array of lead plates as the high voltage and ground planes. Signals resulting from ionization deposited in the ion chamber by cosmic-ray muons were monitored for possible degradation from contamination that may have come from the lead plates. At the 95% confidence level, the loss of pulse height was measured over the first 17 weeks of the experiment to be less than 11% per year. A more sensitive measurement over the following 37 weeks was consistent with zero loss, or a limit of less than 2.9% per year at 95% confidence.
AB - A small test ion chamber has been constructed using 2,2,4,4 tetramethylpentane as the ionizing liquid and an array of lead plates as the high voltage and ground planes. Signals resulting from ionization deposited in the ion chamber by cosmic-ray muons were monitored for possible degradation from contamination that may have come from the lead plates. At the 95% confidence level, the loss of pulse height was measured over the first 17 weeks of the experiment to be less than 11% per year. A more sensitive measurement over the following 37 weeks was consistent with zero loss, or a limit of less than 2.9% per year at 95% confidence.
UR - http://www.scopus.com/inward/record.url?scp=0033130937&partnerID=8YFLogxK
U2 - 10.1016/S0168-9002(99)00024-8
DO - 10.1016/S0168-9002(99)00024-8
M3 - Article
AN - SCOPUS:0033130937
SN - 0168-9002
VL - 426
SP - 356
EP - 365
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
IS - 2
ER -