GEODM sim for depth working group - University of …...GEODM sim for depth working group A. Reiseer...
Transcript of GEODM sim for depth working group - University of …...GEODM sim for depth working group A. Reiseer...
GEODMsimfordepthworkinggroup
A. Reise:erSuperCDMSandGEODMcollaboraAons
AARMmeeAng6/23/2012
7mrockCavernis20mcube
Water12mdiameter&height
Shielding/materialthicknesses
4.9mwater1cmsteel20cmpoly3cmCu
GEODMgeometryAsclosetoLUXaspossible
10towers30det/tower
Eachdet:6”diameter2”thick5.1kg/det
Total1.53e3kgGe
LiveAme&staAsAcs
MUSUNmuonsforSanfordlabthrownfrom5sidesof34mcubePropagatedwithGeant4.9.5Physicslist:Shielding,withpatch,andnewMuonNuclearonAllshowerparAcleskept
3000filesof20kmuonseach,postedath:p://cdmsnano.fnal.gov/xfer/simData/DUSELmuonFiles/
LiveAmeof73.6years
Forthisanalysis,Muons:2.45yearsNeutrons:5.91years
FromChao’s“Soloneutron”distribuAon
Total >1MeV >10MeV >100MeVM&HGSratesscaledtoHomestakeusingmuonrates(.44/2.58)
0.46 0.138 0.125 0.0343
Thissim 0.574/0.22w/200keVthresh
0.164 0.0678 0.0310
Mei&HimetableVcomparisonusingneutronsentering16mx16mcavern
units:nx10‐9/cm2/s
Ingoingneutronsoutsideandinsideshield
volume #neutrons #events Mul4plicity Eventrate/cm2/s
Cavern(avgall6walls)
1.43M 191k 7.49 6.68e‐11
Steelwallinsidewater
135k 38k 3.56 2.68e‐9
NRsindets