Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4348
Title: Further studies on the gain properties of a Gas Electron Multiplier with a Micro-Induction Gap Amplifying Structure (GEM-MIGAS) aimed at low-energy X-ray detection
Authors: Mir, J. A. 
Stephenson, R. 
Rhodes, N. J. 
Schooneveld, E. M. 
Luz, H. Natal da 
Veloso, J. F. C. A. 
Santos, J. M. F. dos 
Azevedo, C. D. R. 
Keywords: Gas electron multiplier; GEM-MIGAS; Effective gain; X-ray energy resolution
Issue Date: 2007
Keywords: Gas electron multiplier; GEM-MIGAS; Effective gain; X-ray energy resolution
Issue Date: 2007
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 580:3 (2007) 1372-1377
Abstract: A Gas Electron Multiplier with Micro-Induction Gap Amplifying Structure (GEM-MIGAS) is formed when the induction gap of the GEM is set between 50 and 100 [mu]m using kapton pillars spaced at regular intervals. This configuration combines the properties of a GEM and Micromegas, allowing operation in tandem to generate high charge gains. We measured the essential operational parameters of this system using argon-isobutane (IB) and helium-IB gas mixtures. The present short induction gap GEM was able to achieve effective gains exceeding 2×104 using argon-IB and 105 using helium-IB mixtures. In view of the high gains achieved, particularly when using helium-based gas mixtures, these studies confirmed the possibility of using the present system for high-performance sub-keV X-ray detection.
URI: http://hdl.handle.net/10316/4348
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
file8248e12519684c198d025af406a86cee.pdf257.6 kBAdobe PDFView/Open
Show full item record

Page view(s)

69
checked on Aug 14, 2019

Download(s)

44
checked on Aug 14, 2019

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.