* ElectronPositronfluence.png:
* CMSpp_EEcomp_elpo_eta1.8_2.6_140319.eps: CMSpp_EEcomp_elpo_eta1.8_2.6_140319.eps
Monte Carlo estimation of the electron and positron fluence in CMS with a forward ECAL sampling calorimeter (EE) under HL-LHC conditions using FLUKA. The plot shows the electron and positron fluence in the EE for an integrated luminosity of 3000.0 fb-1 as a function of the radiation length X_0. The radius of 48 cm - 109 cm corresponds to 1.8 < η < 2.6 for z= 320 cm. The z-coordinate is converted to radiation length by scaling with the effective radiation length for each calorimeter.
The conversion factors are: 0.88 X0/cm for PbWO4, 0.88 X0/cm for YSO/W, 0.508 or LYSO/W and 0.616 for CeF3/W. The bin size is 10% of the effective radiation length of the respective calorimeter to visualise differences between the active and passive layers.The fluence for Lead Tungstate is depicted as a reference. The sampling fraction and density of the scintillator materials influences the distribution up to 7 X_0. Most of the electromagnetic particles in a minimum bias environment have an energy of a few MeV up to 1 GeV. The maximum electromagnetic particle flux develops in the first 4 X_0, particularly in the second scintillator layer.
Monte Carlo estimation of the absorbed dose rate due to the prompt electromagnetic shower and of the decay products for an LYSO/ Tungsten sampling calorimeter for the forward ECAL sampling calorimeter (EE) under HL-LHC conditions using FLUKA. The absorbed dose rate is projected to the calorimeter length in z, from 320 cm - 332.8 cm. The volume behind the sampling calorimeter is filled with a region of very low density (ρ=0.047g/cm3), reflecting a region filled with cables and electronics. The plot compares the absorbed dose rate for a collision rate of 1.44*10^11 pp-int./h with the absorbed dose rate by decaying particles at the irradiation stop after 2475 fb^-1, starting from LS3 until LS5. The absorbed dose rate is visualised for two regions in R-Z: 48 cm - 71 cm and 109 cm -135 cm, corresponding to η = 1.6-1.8 and 2.2-2.6 at z= 320 cm. Both rates differ in average by two orders or magnitude. The inelastic cross section of the prompt EM shower is normalised to running conditions whereas the part from the decay products at the irradiation stop of LS5 is normalised to a higher cross section as an upper limit for activation studies (recommendation from radiation protection recommondation). The absorbed dose rate of the decay products is dominated by short lived radionuclides.
I | Attachment | History | Action | Size | Date | Who | Comment |
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png | 140416_LYSO_PWO_comp_color.png | r1 | manage | 13.6 K | 2014-03-16 - 20:11 | MilenaQuittnat | Compare the expected remnant radioactivity ḢIND among crystals of similar dimensions in terms of radiation lengths |
xls | CMSirrProf_Sophie.xls | r1 | manage | 159.0 K | 2014-03-18 - 04:24 | MilenaQuittnat | Irradiation cycle until LS5 as used by BRIL radiation simulation group |
eps | CMSpp_EECeF3_Dose2d_140319.eps | r1 | manage | 891.1 K | 2014-03-19 - 23:23 | MilenaQuittnat | |
eps | CMSpp_EELYSO_Neutron2d_140319.eps | r1 | manage | 1500.6 K | 2014-03-19 - 23:23 | MilenaQuittnat | |
dat | CMSpp_EEYSO_Dose140319_eta1.8-2.6_1d_radbinning.dat | r1 | manage | 12.7 K | 2014-03-19 - 23:26 | MilenaQuittnat | |
CMSpp_EEcompPbWO4_sampcalo_dose_eta1.8-2.6_140302.pdf | r1 | manage | 56.1 K | 2014-03-16 - 20:43 | MilenaQuittnat | dummy | |
eps | CMSpp_EEcomp_dose_eta1.8-2.6_140319.eps | r1 | manage | 111.7 K | 2014-03-20 - 10:42 | MilenaQuittnat | |
eps | CMSpp_EEcomp_elpo_eta1.8_2.6_140319.eps | r1 | manage | 112.1 K | 2014-03-20 - 10:47 | MilenaQuittnat | |
png | ElectronPositronfluence.png | r1 | manage | 25.7 K | 2014-03-18 - 00:07 | MilenaQuittnat | |
png | FLUKAconditions_foractivation.png | r1 | manage | 66.2 K | 2014-03-18 - 04:25 | MilenaQuittnat | FLUKA parameters for activation study |
png | FLUKAparameters_HL-LHC.png | r1 | manage | 74.6 K | 2014-03-19 - 15:45 | MilenaQuittnat | FLUKA parameters for HL-LHC running conditions |
png | FLUKAparameters_activation.png | r1 | manage | 79.3 K | 2014-03-20 - 11:14 | MilenaQuittnat | |
png | FLUKAparamters_activationstudy.png | r1 | manage | 71.1 K | 2014-03-18 - 21:35 | MilenaQuittnat | FLUKA parameters for activation study |
png | Implementation_of_CMS_ECAL_in_FLUKA.png | r1 | manage | 195.1 K | 2014-03-19 - 15:07 | MilenaQuittnat | CMS description in FLUKA |
eps | LYSO_dose_differenteta_140320.eps | r2 r1 | manage | 131.5 K | 2014-03-20 - 11:10 | MilenaQuittnat | |
Lu_all_reactions.pdf | r1 | manage | 157.7 K | 2014-03-19 - 14:13 | MilenaQuittnat | Lutetium high neutron capture cross section | |
png | Neutron_scatteringcomparison.png | r1 | manage | 26.7 K | 2014-03-19 - 15:14 | MilenaQuittnat | Comparison of forward and backscattering neutrons at front surface of calorimeter |
X4R19961_x4.pdf | r1 | manage | 58.0 K | 2014-03-19 - 14:13 | MilenaQuittnat | Lutetium high neutron capture cross section | |
png | absorbed_dose.png | r1 | manage | 31.9 K | 2014-03-18 - 19:03 | MilenaQuittnat | Absorbed dose rate for sampling calorimeter |
png | absorbed_dose_rateYSO.png | r1 | manage | 24.5 K | 2014-03-19 - 15:58 | MilenaQuittnat | Absorbed dose rate in YSO/W calorimeter |
eps | allparticlespectra_EEYSO_eta1.6_140319.eps | r1 | manage | 72.0 K | 2014-03-19 - 23:23 | MilenaQuittnat | |
png | dose140320.png | r1 | manage | 16.9 K | 2014-03-20 - 10:56 | MilenaQuittnat | |
png | doseLYSO140320.png | r1 | manage | 18.3 K | 2014-03-20 - 11:10 | MilenaQuittnat | |
eps | dose_differenteta_140317.eps | r1 | manage | 143.9 K | 2014-03-17 - 10:03 | MilenaQuittnat | CeF3 sampling calorimeter comparison absorbed dose rate |
eps | electron_backwardscattering_140319.eps | r1 | manage | 33.7 K | 2014-03-20 - 10:41 | MilenaQuittnat | |
png | elpofluence140320.png | r1 | manage | 19.1 K | 2014-03-20 - 10:56 | MilenaQuittnat | |
png | geant4_Results.png | r1 | manage | 32.4 K | 2014-03-18 - 04:17 | MilenaQuittnat | |
eps | isoleth_neutron_spectra_showermax140319.eps | r1 | manage | 114.2 K | 2014-03-20 - 12:03 | MilenaQuittnat | |
eps | neutron_backwardscattering_140319.eps | r1 | manage | 112.4 K | 2014-03-19 - 23:23 | MilenaQuittnat | |
eps | neutron_backwardscattering_140320.eps | r1 | manage | 111.9 K | 2014-03-20 - 11:02 | MilenaQuittnat | |
png | neutron_fluence_backscattering.png | r1 | manage | 32.9 K | 2014-03-18 - 11:56 | MilenaQuittnat | Neutron backscattering per proton collision |
eps | neutron_scatteringcomparison_140319.eps | r1 | manage | 207.9 K | 2014-03-19 - 23:23 | MilenaQuittnat | |
png | neutronbacksacttering140320.png | r1 | manage | 19.0 K | 2014-03-20 - 11:02 | MilenaQuittnat | |
png | neutronspectra.png | r2 r1 | manage | 18.6 K | 2014-03-20 - 11:10 | MilenaQuittnat | |
png | samp_calonewwithoutnaming.png | r1 | manage | 39.6 K | 2014-03-18 - 00:09 | MilenaQuittnat | |
png | sampcaloinFLUKA.png | r1 | manage | 200.9 K | 2014-03-16 - 20:27 | MilenaQuittnat | FLUKA CMS geometry with sampling calorimeter |