Triple-GEM detectors for KEDR tagging system

GEM-based detectors for SR imaging and particle tracking

“…Initially the tagging system included 8 stations based on drift tubes which allowed measuring the SE track coordinate in the beam orbit plane with an average resolution of ∼300 µm [16,17]. For the purpose of improving the spatial resolution and adding the possibility of rejection of the single Bremsstrahlung (SBS) background,the upgrade of the system was performed [18][19][20]. Each TS station was supplemented with a high resolution two-coordinate detector based on cascaded GEM) in front of it.…”

“…Stations TS4 are equipped with detectors of a 256x100 A study of main parameters of the GEM detectors was performed with a series of tests with cosmic particles. Detailed description of the set-up and results of these tests can be found in [19,20]. Three detectors were fixed one over another at a distance of about 3 cm with plastic scintillation counters on the top and the bottom of the stack.…”

Non-uniformity effects of the inter-foil distance on GEM detector performance

“…Since their advent in 1997 [1], the gaseous electron multiplication (GEM) detectors have been widely used in nuclear and particle experiments around the world for their high event rate capability and high spatial resolution [2][3][4][5][6][7][8][9]. Larger area planar GEM detectors have also recently installed or proposed in some experiments [10][11][12][13][14][15][16][17] to measure charged particle tracks.…”

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Non-uniformity effects of the inter-foil distance on GEM detector performance * Yan Huang ( ) 1 Han YI( ) 1 Zhi-Gang Xiao( ) 1,2;1) Zhao Zhang( ) 1 Wen-Jing Cheng() 1 Li-Ming Lü( ) 1 Wei-Hua Yan( ) 1 Ren-Sheng Wang( ) 1 Hong-Jie Li() 1 Yan Zhang( ) 1 Li-Min Duan( ) 3 Rong-Jiang Hu( ) 3 Chen-Gui Lu( ) 3 He-Run Yang( ) 3 Peng Ma( ) 3 Hai-Yan Gao( ) 1,4,5

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“…) 1 Yan Zhang( ) 1 Li-Min Duan( ) 3 Rong-Jiang Hu( ) 3 Chen-Gui Lu( ) 3 He-Run Yang( ) 3 Peng Ma( ) 3 Hai-Yan Gao( ) 1,4,5…”