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ABSTRACT: An experiment in which a gas scintillation proportional detector is used to search for 17-keV neutrinos is described. With this detector, possible disturbing solid-state phenomena from tritium in the semiconductor lattice are excluded. With a count rate of 1000 events per second (including position information), of which 300 are considered good events, it takes 40 days to produce the required statistics. It is shown that the detector considered possesses the required energy resolution with drift properties
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE; 11/1992
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ABSTRACT: A detector is presented in which Cerenkov UV light is produced in
a thin layer (4 cm) of a liquid-FC72 radiator in which a row of
centimeter-diameter quartz tubes is immersed. The light is detected in
these tubes. Inside a tube, a wire is stretched along the axis for an
anode, and parallel wires on the inner circumference function as the
cathode. The tubes are operated with TMAE vapour without additional
counting gas so that each tube acts as an elementary low-pressure
proportional chamber. The response of charged particles passing the
detector is suppressed using this principle. Computer simulations have
shown that good pion/kaon discrimination can be obtained. After a pilot
study with a one tube light detector, a small 20×20-cm<sup>2</sup>
prototype Cerenkov detector was constructed. This is discussed by the
authors
IEEE Transactions on Nuclear Science 07/1990; · 1.45 Impact Factor
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ABSTRACT: This is an update of the report on a gasscintillation detector with a 7-cm diameter Be window for the detection of the K X-ray lines of exotic atoms such as pp, pD and K p (Ref. 1). Additional insulation eliminated breakdown at 9 kV to allow an improvement in background suppression. Timing markers from two scintillation regions combined with energy information, signals from guard detectors, and offline analysis resulted in a background reduction factor of ¿300. Time and amplitude spectra are shown.
IEEE Transactions on Nuclear Science 01/1988; · 1.45 Impact Factor
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W. J. C. Okx,
C. W. E. van Eijk,
R. Ferreira Marques,
R. W. Hollander,
D. Langerveld,
A. Stanovnik,
C. A. Baker,
J. D. Davies,
J. Moir,
S. Sakamoto,
E. W. A. Lingeman,
R. E. Welsh,
R. G. Winter
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ABSTRACT: We designed a gasscintillation proportional detector (GSPD) with a diameter of 7 cm for the detection of X-rays in the energy range of 5 to 16 keV. First results are presented, including some from test experiments at LEAR, CERN. An energy resolution of 9% has been obtained at 6 keV. For timing pre-scintillation can be used.
IEEE Transactions on Nuclear Science 03/1986; · 1.45 Impact Factor
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IEEE Transactions on Nuclear Science.
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W.J.C. Okx
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C.W.E. van Eijk,
R W Hollander,
D Langerveld, W J C Okx,
A Zoutendijk,
R. Ferreira-Marques,
C A Baker,
C J Batty,
S A Clark,
J Moir,
S Sakamoto,
J D Davies,
J Lowe,
J M Nelson,
G J Pyle,
G T A Squier,
R. E. Welsh,
R G Winter,
E W A Lingeman
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C A Baker,
C J Batty,
J D Davies,
C.W.E. van Eijk,
R. Ferreira-Marques,
R W Hollander,
D Langerveld,
E W A Lingeman,
J Lowe,
J Moir,
J M Nelson, W J C Okx,
G J Pyle,
S Sakamoto,
A Selvarajah,
G T A Squier,
R. E. Welsh,
R G Winter,
A Zoutendijk
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C A Baker,
C J Batty,
S A Clark,
J Moir,
S Sakamoto,
J D Davies,
J Lowe,
J M Nelson,
G J Pyle,
A Selvarajah,
G T A Squier,
R. E. Welsh,
R G Winter,
E W A Lingeman,
C.W.E. van Eijk,
R W Hollander,
D Langerveld, W J C Okx,
A Zoutendijk
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PS174 Collaboration,
C A Baker,
C J Batty,
J D Davies,
C.W.E. van Eijk,
R. Ferreira-Marques,
R W Hollander,
D Langerveld,
E W A Lingeman,
J Lowe,
J Moir,
J M Nelson, W J C Okx,
G J Pyle,
S Sakamoto,
A Selvarajah,
G T A Squier,
R. E. Welsh,
R G Winter,
A Zoutendijk
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C.W.E. Van Eijk,
R.W. Hollander,
D. Langerveld, W.J.C. Okx,
A. Zoutendijk,
R. Ferreira-Marques,
C.A. Baker,
C.J. Batty,
S.A. Clark,
J. Moir,
S. Sakamoto,
J.D. Davies,
J. Lowe,
J.M. Nelson,
G.J. Pyle,
G.T.A. Squier,
R.E. Welsh,
R.G. Winter,
E.W.A. Lingeman
[show abstract]
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ABSTRACT: Energies and yields of K-series X-rays from pp atoms have been measured with two gas scintillation proportional detectors at target gas densities of 0.25 and 0.92ρSTP. Values for the strong interaction shift and width of the 1s state obtained from the X-ray spectra are compared with the predictions of a variety of theoretical models. Upper limits for the yield of K-series X-rays from p̄d atoms have also been obtained.
Nuclear Physics A.
