New results on a gaseous detector using Medipix2 and Micromegas

Autor:	S. van der Putten, H. van der Graaf, A.A. Aarts
Rok vydání:	2006
Předmět:	Physics Nuclear and High Energy Physics Time projection chamber Pixel business.industry MicroMegas detector Electron Radiation Chip Anode Nuclear physics Optics CMOS business Instrumentation
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 563:205-208
ISSN:	0168-9002
Popis:	A prototype time projection chamber (TPC) has been built (GridPix) consisting of a Medipix2 pixel CMOS readout circuit as a direct anode and a Micromegas grid 50 μ m above the chip. With this new TPC it is possible to detect single electrons from tracks made by minimum ionizing particles. It is also shown that GridPix can withstand high counting rates and high intensity radiation environments, better than traditional wire chambers. Up to 0.9 MHz / mm 2 of 8 keV X-rays at a gain of 10 4 the chamber shows no deviation from the current-rate proportionality. GridPix is estimated to be roughly a factor of 400 times more radiation tolerant compared to traditional wire chambers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8edcb649dbc97904302f40cf391322f6 https://doi.org/10.1016/j.nima.2006.01.102 Zobrazit plný text záznamu Full Text from ScienceDirect