TY - JOUR
T1 - Comparison between large discharges of a gas counter in pure CH4 and in a CH4Ar mixture
AU - Nohtomi, A.
AU - Matsumoto, T.
AU - Narita, K.
AU - Uozumi, Y.
AU - Sakae, T.
AU - Matoba, M.
AU - Koori, N.
AU - Ijiri, H.
PY - 1995/11/11
Y1 - 1995/11/11
N2 - Gas discharge characteristics in pure CH4 have been studied in the high gas-multiplication region by using a gas counter with a thick anode wire (50 μm in diameter) and compared with those of the self-quenching streamer (SQS) mode in a CH4Ar mixture. The results of the first optical observation indicate that the large pulses observed in CH4, whose pulse amplitudes are comparable to those of the SQS mode, are not due to streamer discharges. Instead, a luminous region is observed near the anode wire (r ≤ 0.7 mm) where the electric field is higher than the threshold value for gas multiplication, 104 V/cm.
AB - Gas discharge characteristics in pure CH4 have been studied in the high gas-multiplication region by using a gas counter with a thick anode wire (50 μm in diameter) and compared with those of the self-quenching streamer (SQS) mode in a CH4Ar mixture. The results of the first optical observation indicate that the large pulses observed in CH4, whose pulse amplitudes are comparable to those of the SQS mode, are not due to streamer discharges. Instead, a luminous region is observed near the anode wire (r ≤ 0.7 mm) where the electric field is higher than the threshold value for gas multiplication, 104 V/cm.
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U2 - 10.1016/0168-9002(95)00396-7
DO - 10.1016/0168-9002(95)00396-7
M3 - Letter
AN - SCOPUS:58149211191
SN - 0168-9002
VL - 365
SP - 582
EP - 584
JO - Nuclear Inst. and Methods in Physics Research, A
JF - Nuclear Inst. and Methods in Physics Research, A
IS - 2-3
ER -