Geant4 Simulations for the Radon Electric Dipole Moment Search at

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List of Tables 1.1 Current upper limits on EDMs of the neutron, electron and 199 Hg atom 6 3.1 Hexidecimal flags in Geant4 output binary data . . . . . . . . . . . 40 3.2 X-ray energies and intensities per 100 Fr K-shell vacancies . . . . . . 48 3.3 Three-dimensional γ-ray angular distributions for various transtions . 52 4.1 Fit results for the 416 keV γ-ray M1 transition . . . . . . . . . . . . . 73 vi
List of Figures 1.1 An illustration of the parity and time-reversal transformations . . . . 3 1.2 Timeline of EDM experimental upper limits. . . . . . . . . . . . . . . 7 1.3 Double well potential that arises in octupole-deformed nuclei. . . . . 9 2.1 The ISAC-I Hall at TRIUMF . . . . . . . . . . . . . . . . . . . . . . 13 2.2 Schematic of the prototype on-line noble gas collection apparatus . . 16 2.3 Level diagram for a 4 He + ion . . . . . . . . . . . . . . . . . . . . . . . 18 2.4 Level diagram of 85 Rb . . . . . . . . . . . . . . . . . . . . . . . . . . 19 2.5 Polarization transfer processes . . . . . . . . . . . . . . . . . . . . . . 24 2.6 The full 16 detector GRIFFIN array . . . . . . . . . . . . . . . . . . 28 2.7 One GRIFFIN/TIGRESS HPGe clover . . . . . . . . . . . . . . . . . 29 2.8 Cross-section of GRIFFIN heads in forward and back configurations . 30 2.9 GRIFFIN detectors in the forward configuration . . . . . . . . . . . . 31 2.10 GRIFFIN detectors in the back configuration . . . . . . . . . . . . . 31 3.1 Cross section of the RnEDM simulated apparatus . . . . . . . . . . . 38 3.2 Geant4 simulation of radioactive decay . . . . . . . . . . . . . . . . 43 3.3 β particle angular distributions for various degrees of polarization. . . 49 3.4 γ-ray angular distributions for various multipolarities and spins . . . 53 3.5 Cross section of the EDM cell, oven, magnet and µMetal shielding . . 54 vii
Page 1 and 2: GEANT4 SIMULATIONS FOR THE RADON EL
Page 3 and 4: Dictated but not read. i
Page 5 and 6: Contents Acknowledgements ii 1 Intr
Page 7: 4 Results 60 4.1 γ-Ray Spectroscop
Page 11 and 12: Chapter 1 Introduction Thesearchfor
Page 13 and 14: ˆP ր ˆT ց Figure 1.1: An illust
Page 15 and 16: 1.1.1 CP Violation Following the ob
Page 17 and 18: Figure 1.2: Experimental upper limi
Page 19 and 20: Figure 1.3: Illustration of the dou
Page 21 and 22: Chapter 2 RnEDM Experiment at TRIUM
Page 23 and 24: Figure 2.1: A schematic of the ISAC
Page 25 and 26: a measurement cell. The RnEDM exper
Page 27 and 28: NMR techniques, and supplementing s
Page 29 and 30: Occupied Orbitals Fine Structure Hy
Page 31 and 32: energy levels are separated accordi
Page 33 and 34: (σ + ) along the axis of the B fie
Page 35 and 36: atom and absorbed by another. Radia
Page 37 and 38: anaverageof120kHzphotopeakcountrate
Page 39 and 40: Figure 2.7: One GRIFFIN/TIGRESS HPG
Page 41 and 42: (a) One GRIFFIN detector in the HPG
Page 43 and 44: 3.1 Introduction 3.1.1 Previous Wor
Page 45 and 46: energies, branching ratios, emissio
Page 47 and 48: used around the measurement cell in
Page 49 and 50: 3.2.5 Simulated Data Thecodewaswrit
Page 51 and 52: lower its total energy. Internal co
Page 53 and 54: 10000 1000 2 χ red = 1.21 t 1/2 =
Page 55 and 56: as [47] I(E) = G 2π 3 7 c 6 | M i
Page 57 and 58: was to use an average X-ray energy
Page 59 and 60:
1.5 1.4 1.3 1.2 P = 100% P = 75% P
Page 61 and 62:
where (a b c d | e f) are Clebsch-G
Page 63 and 64:
2 2 1.5 J i = 5/2, J f = 5/2 J i =
Page 65 and 66:
of radius 10 cm, allowing the GRIFF
Page 67 and 68:
(a) Screenshot showing the detector
Page 69 and 70:
3.6.2 Output Data and Sort Codes Th
Page 71 and 72:
(user-defined option), secondly toa
Page 73 and 74:
30 Absolute Efficiency (%) 25 20 15
Page 75 and 76:
11 10 9 8 7 6 5 4 3 2 1 0 1e+06 Cou
Page 77 and 78:
4.2.1 Multipolarity Effects The sha
Page 79 and 80:
Figure 4.7: The time projections an
Page 81 and 82:
distribution, this average intensit
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Table 4.1: The fit results for the
Page 85 and 86:
12 10 linear regression: y = 0.2243
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15 Linear Counts (e+04) 10 5 0 1e+0
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Chapter 5 Conclusions and Future Di
Page 91 and 92:
simulated given sufficient parent a
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Appendix A Figure A.1: Simulated de
Page 95 and 96:
Figure A.3: Simulated decay scheme
Page 97 and 98:
Figure A.5: Simulated decay scheme
Page 99 and 100:
6 out = (1/(1+∆ˆ2))*(f(k,jf,L1,L
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44 return; 45 end 46 if abs(m) > j
Page 103 and 104:
1 % LegendreP.m 2 function P = Lege
Page 105 and 106:
39 xx(i+1,j+1) = r(i+1,1)*sin((i*re
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11 %warning('m1 + m2 + m3 must equa
Page 109 and 110:
23 end 24 % ////////// 25 j1 = J1;
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33 if L1 == L2 && ∆ == 0 34 title
Page 113 and 114:
Bibliography [1] J. M. Pendlebury a
Page 115 and 116:
[25] P. G. Bricault, M. Dombsky, Je
Page 117:
[47] RichardA.Dunlap. An introducti
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