RPCINFNiRPC2019 < CMSPublic

CMSPublic Web>PhysicsResults>MuonDPGResults>RPCINFNiRPC2019 (2019-07-08, RoumyanaHadjiiska) (raw view)

-- Main.RoumyanaHadjiiska - 2019-07-08

---+ INFN-iRPC prototype. GIF++ testbeam campaign

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|  *Figure*  |  *Description*  |
|[[%ATTACHURLPATH%/cls_history_b.png][<img width="298"  src="%ATTACHURLPATH%/cls_history_b.png" alt="cls_history_b.png" />]] | *Efficiency Distribution for RE4 chambers*: This plot shows the efficiency distribution of all RE4 chamber produced by January 2014 (roll by roll). Cosmic ray muon tracks reconstructed at the RE4 assembly sites were used for this measurements. Contact: stefano.colafranceschi@cernSPAMNOT.ch |

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---+++ Figures:
| [[%ATTACHURLPATH%/gapCurrents.png][<img alt="gapCurrents.png" src="%ATTACHURLPATH%/gapCurrents.png" width="500" />]] | 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. [[%ATTACHURLPATH%/gapCurrents.pdf][pdf file]] [[%ATTACHURLPATH%/gapCurrents.C][C file]] Contact: cms-dpg-conveners-rpc@SPAMNOTcern.ch |

| [[%ATTACHURLPATH%/chargePerHit.png][<img alt="chargePerHit.png" src="%ATTACHURLPATH%/chargePerHit.png" width="500" />]] | 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 [[%ATTACHURLPATH%/formula1.png][<img alt="formula1.png" src="%ATTACHURLPATH%/formula1.png"/>]], where: Iavg = the average current of the top and bottom gaps; R = the gamma counting rate; CLS&#120574; = the gamma cluster size; Agap = the area of the gap. This definition is consistent when a gamma particle interacts only with one gap. [[%ATTACHURLPATH%/chargePerHit.pdf][pdf file]] [[%ATTACHURLPATH%/chargePerHit.C][C file]] Contact: cms-dpg-conveners-rpc@SPAMNOTcern.ch |

| [[%ATTACHURLPATH%/summaryCLS.png][<img alt="summaryCLS.png" src="%ATTACHURLPATH%/summaryCLS.png" width="500" />]] | 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. [[%ATTACHURLPATH%/summaryCLS.pdf][pdf file]] [[%ATTACHURLPATH%/summaryCLS.C][C file]] Contact: cms-dpg-conveners-rpc@SPAMNOTcern.ch |

| [[%ATTACHURLPATH%/summaryCMP.png][<img alt="summaryCMP.png" src="%ATTACHURLPATH%/summaryCMP.png" width="500" />]] | 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. [[%ATTACHURLPATH%/summaryCMP.pdf][pdf file]] [[%ATTACHURLPATH%/summaryCMP.C][C file]] Contact: cms-dpg-conveners-rpc@SPAMNOTcern.ch |

| [[%ATTACHURLPATH%/fakeEfficiency.png][<img alt="fakeEfficiency.png" src="%ATTACHURLPATH%/fakeEfficiency.png" width="500" />]] | [[%ATTACHURLPATH%/muonEfficiency.png][<img alt="muonEfficiency.png" src="%ATTACHURLPATH%/muonEfficiency.png" width="500" />]] |

| 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. [[%ATTACHURLPATH%/muonEfficiency.pdf][pdf file efficiency]] [[%ATTACHURLPATH%/muonEfficiency.C][C file efficiency]]; [[%ATTACHURLPATH%/fakeEfficiency.pdf][pdf file fake efficiency]] [[%ATTACHURLPATH%/fakeEfficiency.C][C file fake efficiency]] Contact: cms-dpg-conveners-rpc@SPAMNOTcern.ch |

| [[%ATTACHURLPATH%/WP.png][<img alt="WP.png" src="%ATTACHURLPATH%/WP.png" width="500" />]] | 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: [[%ATTACHURLPATH%/formula2.png][<img alt="formula2.png" src="%ATTACHURLPATH%/formula2.png"/>]], The working point voltage is then defined as: %RED% WP = ln(19)/&#955;  + HV(50%) + 150 V %ENDCOLOR%; An increase of the working point vs. background gamma cluster rate is expected as the detector becomes less efficient under high detector occupancy. [[%ATTACHURLPATH%/WP.pdf][pdf file]] [[%ATTACHURLPATH%/WP.C][C file]] Contact: cms-dpg-conveners-rpc@SPAMNOTcern.ch |

Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who
c	WP.C	r1	manage	3.3 K	2019-07-08 - 10:14	RoumyanaHadjiiska
pdf	WP.pdf	r1	manage	14.0 K	2019-07-08 - 10:14	RoumyanaHadjiiska
png	WP.png	r1	manage	24.0 K	2019-07-08 - 10:13	RoumyanaHadjiiska
c	chargePerHit.C	r1	manage	3.3 K	2019-07-08 - 10:14	RoumyanaHadjiiska
pdf	chargePerHit.pdf	r1	manage	14.1 K	2019-07-08 - 10:14	RoumyanaHadjiiska
png	chargePerHit.png	r1	manage	25.9 K	2019-07-08 - 10:13	RoumyanaHadjiiska
c	fakeEfficiency.C	r1	manage	3.3 K	2019-07-08 - 10:14	RoumyanaHadjiiska
pdf	fakeEfficiency.pdf	r1	manage	13.9 K	2019-07-08 - 10:14	RoumyanaHadjiiska
png	fakeEfficiency.png	r1	manage	24.0 K	2019-07-08 - 10:13	RoumyanaHadjiiska
png	formula1.png	r1	manage	4.0 K	2019-07-08 - 10:22	RoumyanaHadjiiska
png	formula2.png	r1	manage	3.3 K	2019-07-08 - 10:36	RoumyanaHadjiiska
c	gapCurrents.C	r1	manage	6.3 K	2019-07-08 - 10:14	RoumyanaHadjiiska
pdf	gapCurrents.pdf	r1	manage	14.4 K	2019-07-08 - 10:14	RoumyanaHadjiiska
png	gapCurrents.png	r1	manage	28.8 K	2019-07-08 - 10:13	RoumyanaHadjiiska
c	muonEfficiency.C	r1	manage	3.3 K	2019-07-08 - 10:14	RoumyanaHadjiiska
pdf	muonEfficiency.pdf	r1	manage	13.9 K	2019-07-08 - 10:14	RoumyanaHadjiiska
png	muonEfficiency.png	r1	manage	24.4 K	2019-07-08 - 10:13	RoumyanaHadjiiska
c	summaryCLS.C	r1	manage	6.3 K	2019-07-08 - 10:14	RoumyanaHadjiiska
pdf	summaryCLS.pdf	r1	manage	14.6 K	2019-07-08 - 10:14	RoumyanaHadjiiska
png	summaryCLS.png	r1	manage	24.8 K	2019-07-08 - 10:13	RoumyanaHadjiiska
c	summaryCMP.C	r1	manage	6.3 K	2019-07-08 - 10:14	RoumyanaHadjiiska
pdf	summaryCMP.pdf	r1	manage	14.4 K	2019-07-08 - 10:14	RoumyanaHadjiiska
png	summaryCMP.png	r1	manage	27.0 K	2019-07-08 - 10:13	RoumyanaHadjiiska

Topic revision: r1 - 2019-07-08 - RoumyanaHadjiiska

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