-- RoumyanaHadjiiska - 2019-07-08

INFN-iRPC prototype. GIF++ testbeam campaign

Figures:

gapCurrents.png Shown the current of the top and bottom gaps as function of the background gamma cluster rate (defined as the gamma counting rate divided by the photon cluster size), evaluated at the working point voltage. A good linear behavior is obtained indicating a proper estimation of the gamma clusters. pdf file C file Contact: cms-dpg-conveners-rpc@SPAMNOTcernNOSPAMPLEASE.ch

chargePerHit.png Shown the charge per hit as function of the background gamma cluster rate (defined as the gamma counting rate divided by the photon cluster size), evaluated at the working point voltage. The charge per gamma cluster is calculated as follows formula1.png, where: Iavg = the average current of the top and bottom gaps; R = the gamma counting rate; CLS𝛾 = the gamma cluster size; Agap = the area of the gap. This definition is consistent when a gamma particle interacts only with one gap. pdf file C file Contact: cms-dpg-conveners-rpc@SPAMNOTcernNOSPAMPLEASE.ch

summaryCLS.png Shown the muon (blue) and gamma (red) cluster size as function of the background gamma cluster rate (defined as the gamma counting rate divided by the photon cluster size), evaluated at the working point voltage. The muon cluster size decreases as function of the cluster rate from 3.5 (zero background rate) to 2.5 (high background rate). The gamma cluster size is constant as function of the background gamma cluster rate. pdf file C file Contact: cms-dpg-conveners-rpc@SPAMNOTcernNOSPAMPLEASE.ch

summaryCMP.png Shown the muon (blue) and gamma (red) cluster multiplicity as function of the background gamma cluster rate (defined as the gamma counting rate divided by the photon cluster size), evaluated at the working point voltage. The muon cluster multiplicity slightly increases as function of the cluster rate from 1.2 (zero background rate) to 1.7 (high background rate). A value of 1.2 with zero background rate is explained by the occurrence of double muons in the spill and, to lesser extend by the clusterization algorithm. pdf file C file Contact: cms-dpg-conveners-rpc@SPAMNOTcernNOSPAMPLEASE.ch

fakeEfficiency.png muonEfficiency.png

Shown the muon (right) and fake (left) efficiency as function of the background gamma cluster rate (defined as the gamma counting rate divided by the photon cluster size), evaluated at the working point voltage. The muon efficiency is corrected for the fake background gamma hits, explaining the efficiency decrease towards higher background gamma cluster rates. pdf file efficiency C file efficiency; pdf file fake efficiency C file fake efficiency Contact: cms-dpg-conveners-rpc@SPAMNOTcernNOSPAMPLEASE.ch

WP.png Shown the muon working point as function of the background gamma cluster rate (defined as the gamma counting rate divided by the photon cluster size), evaluated at the working point voltage. The working point is defined by fitting the efficiency curve (after subtracting the fake background gamma contribution) with the following sigmoid formula: formula2.png, The working point voltage is then defined as: WP = ln(19)/λ + HV(50%) + 150 V ; An increase of the working point vs. background gamma cluster rate is expected as the detector becomes less efficient under high detector occupancy. pdf file C file Contact: cms-dpg-conveners-rpc@SPAMNOTcernNOSPAMPLEASE.ch
Topic attachments
I AttachmentSorted ascending History Action Size Date Who Comment
C source code filec chargePerHit.C r1 manage 3.3 K 2019-07-08 - 10:14 UnknownUser  
PDFpdf chargePerHit.pdf r1 manage 14.1 K 2019-07-08 - 10:14 UnknownUser  
PNGpng chargePerHit.png r1 manage 25.9 K 2019-07-08 - 10:13 UnknownUser  
C source code filec fakeEfficiency.C r1 manage 3.3 K 2019-07-08 - 10:14 UnknownUser  
PDFpdf fakeEfficiency.pdf r1 manage 13.9 K 2019-07-08 - 10:14 UnknownUser  
PNGpng fakeEfficiency.png r1 manage 24.0 K 2019-07-08 - 10:13 UnknownUser  
PNGpng formula1.png r1 manage 4.0 K 2019-07-08 - 10:22 UnknownUser  
PNGpng formula2.png r1 manage 3.3 K 2019-07-08 - 10:36 UnknownUser  
C source code filec gapCurrents.C r1 manage 6.3 K 2019-07-08 - 10:14 UnknownUser  
PDFpdf gapCurrents.pdf r1 manage 14.4 K 2019-07-08 - 10:14 UnknownUser  
PNGpng gapCurrents.png r1 manage 28.8 K 2019-07-08 - 10:13 UnknownUser  
C source code filec muonEfficiency.C r1 manage 3.3 K 2019-07-08 - 10:14 UnknownUser  
PDFpdf muonEfficiency.pdf r1 manage 13.9 K 2019-07-08 - 10:14 UnknownUser  
PNGpng muonEfficiency.png r1 manage 24.4 K 2019-07-08 - 10:13 UnknownUser  
C source code filec summaryCLS.C r1 manage 6.3 K 2019-07-08 - 10:14 UnknownUser  
PDFpdf summaryCLS.pdf r1 manage 14.6 K 2019-07-08 - 10:14 UnknownUser  
PNGpng summaryCLS.png r1 manage 24.8 K 2019-07-08 - 10:13 UnknownUser  
C source code filec summaryCMP.C r1 manage 6.3 K 2019-07-08 - 10:14 UnknownUser  
PDFpdf summaryCMP.pdf r1 manage 14.4 K 2019-07-08 - 10:14 UnknownUser  
PNGpng summaryCMP.png r1 manage 27.0 K 2019-07-08 - 10:13 UnknownUser  
C source code filec WP.C r1 manage 3.3 K 2019-07-08 - 10:14 UnknownUser  
PDFpdf WP.pdf r1 manage 14.0 K 2019-07-08 - 10:14 UnknownUser  
PNGpng WP.png r1 manage 24.0 K 2019-07-08 - 10:13 UnknownUser  
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