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RoumyanaHadjiiska - 2019-07-08
INFN-iRPC prototype. GIF++ testbeam campaign
Figures:
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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 |
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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 , 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 |
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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 |
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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 |
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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: , 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 |
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MuonDPGResults > RPCINFNiRPC2019
Topic revision: r1 - 2019-07-08 - RoumyanaHadjiiska