RT journal article
T1 New micro-pattern gas detector based on a 2D position readout mesh
A1 Fernández Banqué, F.
A1 Ramos Lerate, Inmaculada Concepción
A1 Martínez, J.C.
A1 Beltrán, D.
A1 Bordas, J.
A1 Key, M.
A2 Física Aplicada
K1 X-ray detector; Gaseous detector; Position-sensitive detector; Sub-millisecond; MPGD; Synchrotron radiation
K1 X-ray detector
K1 Gaseous detector
K1 Position-sensitive detector
K1 Sub-millisecond
K1 MPGD
K1 Synchrotron radiation
AB Micro-pattern gas detectors (MPGD) could become suitable devices to carry out time-resolved X-ray diffraction experiments in the sub-millisecond time scale at synchrotron radiation facilities. Nevertheless, these devices are not free of problems. Among other problems are the build-up of ions in the detector components and the susceptibility of the materials in the structure to dielectric breakdown. Here, we present a new MPGD design we have called micro reading mesh chamber (MRMC). Its layout is based on a resistive anode, support pillars and a mesh formed by two planes of pick-up strips. In order to prevent charging up, a common problem with GEMs and MPGD in general, a minimum amount of dielectric material has been used in the design. The aim has been to avoid dielectric near the drift paths of the ions. To prevent dielectric breakdown, a resistive anode with guard rings at the base of the pillars has been designed. Finally, to improve the cathode signals quality, we use a mesh to read the avalanche. In this manner the size of the induced charge is larger than in more conventional eometries.
PB ELSEVIER
SN 0168-9002
YR 2007
FD 2007
LK http://hdl.handle.net/10498/30106
UL http://hdl.handle.net/10498/30106
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 13-nov-2026