Presentation is loading. Please wait.

Presentation is loading. Please wait.

CPOTS 2013: 3 rd ERASMUS IP on Charge Particle Optics – Theory and Simulation Dept. of Physics, University of Crete, Heraklion, GREECE Project Coordinator:

Published byKenneth Myatt Modified over 9 years ago

Similar presentations

Presentation on theme: "CPOTS 2013: 3 rd ERASMUS IP on Charge Particle Optics – Theory and Simulation Dept. of Physics, University of Crete, Heraklion, GREECE Project Coordinator:"— Presentation transcript:

1 CPOTS 2013: 3 rd ERASMUS IP on Charge Particle Optics – Theory and Simulation Dept. of Physics, University of Crete, Heraklion, GREECE Project Coordinator: Prof. Theo Zouros (tzouros@physics.uoc.gr) CPOTS – 3 rd ERASMUS Intensive Program Introduction to Charged Particle Optics: Theory and Simulation http://cpots2013.physics.uoc.gr Dept. of Physics, University of Crete Aug 15 – 30, 2013 Heraklion, Crete, GREECE UCMUCM CPOTS 2013: L4.1 - DK 1/32 http://cpots2013.physics.uoc.gr

2 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 2/17 Project 6 5 Element Lens Tobias Bauer 1, Anastasios Kanellakopoulos 2, Tuğçe Nur Tandırcıoğlu 3 Supervisors: Genoveva Martínez López 4, Pilar Garcés 4 1 Johann Wolfgang Goethe-Universität Frankfurt am Main 2 National Kapodistrian University of Athens 3 Selçuk University 4 Complutense University of Madrid

3 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 3/17 Motivation Design an afocal lens Study the afocal properties of the 5 element lens Goals Find the optimal voltage element combination Create the best possible beam for HDA entry Motivation and Goals

4 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 4/17 What is a 5 element lens? 5 element lens A 5 element lens is just two 3 element lenses back to back attached!

5 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 5/17 Geometry Heddle’s Lens

6 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 6/17 Since the two lenses are identical the electrode voltages must fulfill the relationships: Afocal Mode and the transverse magnification is:

7 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 7/17 Afocal lens No focus points Beam doesn’t converge or diverge e.g. Beam that enters parallel, exits parallel Afocal Lens

8 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 8/17 Afocal Lens Result V 5 /V 1 V 2 /V 1 V 3 /V 1 V 4 /V 1 M exp |M th |α 0.25 2.4360.501.218-1.4111.4140.194 0.53.0550.7072.161-1.1881.1890.165 1.03.6911.0003.691-0.9981.0000.142 5.04.9002.23610.957-0.6780.6690.001 10.55.4503.24017.660-0.5570.5560.001 10.50.5593.2401.811-0.5680.5560.002 24.05.8204.89928.512-0.4460.4510.001 24.00.814.8993.968-0.4630.4510.001 V 5 /V 1 V 2 /V 1 V 3 /V 1 V 4 /V 1 M exp |M th |α 0.25 2.4360.501.218-1.4111.4140.194 0.53.0550.7072.161-1.1881.1890.165 1.03.6911.0003.691-0.9981.0000.142 5.04.9002.23610.957-0.6780.6690.001 10.55.4503.24017.660-0.5570.5560.001 10.50.5593.2401.811-0.5680.5560.002 24.05.8204.89928.512-0.4460.4510.001 24.00.814.8993.968-0.4630.4510.001 V2V2 V4V4 Output Angle

9 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 9/17 Aberrations Spherical Coma Aberrations

10 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 10/17 Spherical Aberattion V5V5 R1R1 R 1.5 R2R2 R 2.5 R3R3 0.250.0100.0230.0490.0880.145 0.500.0110.0230.0400.0640.102 1.00.0080.0160.0280.0420.066 5.00.0160.0210.0240.0230.017 10.50.0010.0020.0060.0130.025 10.50.0280.0450.0650.0900.121 24.00.0080.0130.0210.0290.041 24.00.0210.0340.0490.0670.090 V5V5 R1R1 R 1.5 R2R2 R 2.5 R3R3 0.250.0100.0230.0490.0880.145 0.500.0110.0230.0400.0640.102 1.00.0080.0160.0280.0420.066 5.00.0160.0210.0240.0230.017 10.50.0010.0020.0060.0130.025 10.50.0280.0450.0650.0900.121 24.00.0080.0130.0210.0290.041 24.00.0210.0340.0490.0670.090

11 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 11/17 Spherical Aberration R = 0.121 mm R = 0.025 mm V 5 = 10.5 Volts, V2 = 5.450 VoltsV 5 = 10.5 Volts, V2 = 0.559 Volts Ke = 1eV, Plane X = 120mm (exit) 1° 2° 3° Initial angle

12 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 12/17

13 V 4 = 40V V 4 = 20V V 4 = 0V Better Parallel Alignement keeping the same transmission Optimisation CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 13/17 Output AngleTransmission V2V2 V3V3

14 Ave Angle Sum Transmission *currently not optimized 100% Transmission with smallest angle sum V2 = 205V, V3 = -50, V4 = 40V* Following Traces CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 14/17 V2V2 V3V3

15 Transmission V2 = 205, V3 = -50, V4 = 40 V2 = 0, V3 = -100, V4 = 40 V2 = 110, V3 = -80, V4 = 40 going to < 50% Transmission Following Traces - Results

16 Introduce new Score value to minimize Example: Score =W1 * Transmission + W2 * Parallel_Angle_Sum + W3 * Fokus_Width + … Score = 3 * Best_Angle / Ave_Angle + 1 * Transmission How to continue… Trans CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 16/17 V3V3 V2V2 V3V3 V2V2 V2V2 V3V3

17 CPOTS 2013: P6 http://cpots2013.physics.uoc.gr 17/17 The end Thank you for your attention Any questions?

Download ppt "CPOTS 2013: 3 rd ERASMUS IP on Charge Particle Optics – Theory and Simulation Dept. of Physics, University of Crete, Heraklion, GREECE Project Coordinator:"

Similar presentations

69th NUPECC meeting October 8, 2010 1 Electron transfer into metastable He-like ions: Investigation of non-statistical population mechanisms Theo J.M.

69th NUPECC meeting October 8, Electron transfer into metastable He-like ions: Investigation of non-statistical population mechanisms Theo J.M.
Consider Refraction at Spherical Surfaces:

Consider Refraction at Spherical Surfaces:
Chapter 31: Images and Optical Instruments

Chapter 31: Images and Optical Instruments
Chapter 23:Mirrors and Lenses Flat Mirrors Homework assignment : 20,24,42,45,51  Image of a point source P P’ The reflected rays entering eyes look as.

Chapter 23:Mirrors and Lenses Flat Mirrors Homework assignment : 20,24,42,45,51  Image of a point source P P’ The reflected rays entering eyes look as.
Light and Optics Chapters 22 and 23 By Aaron Jones.

Light and Optics Chapters 22 and 23 By Aaron Jones.
Chapter 31 Images.

Chapter 31 Images.
Ray Diagrams.

Ray Diagrams.
Chapter 23 Mirrors and Lenses.

Chapter 23 Mirrors and Lenses.
CPOTS 2013: 3 rd ERASMUS IP on Charge Particle Optics – Theory and Simulation Dept. of Physics, University of Crete, Heraklion, GREECE Project Coordinator:

CPOTS 2013: 3 rd ERASMUS IP on Charge Particle Optics – Theory and Simulation Dept. of Physics, University of Crete, Heraklion, GREECE Project Coordinator:
NUPECC meeting in Athens Mar 13, 2015 Anastasios Dimitriou University of Crete& Institute of Nuclear and Particle Physics, Demokritos, Athens Atomic Physics.

NUPECC meeting in Athens Mar 13, 2015 Anastasios Dimitriou University of Crete& Institute of Nuclear and Particle Physics, Demokritos, Athens Atomic Physics.
Light: Geometric Optics

Light: Geometric Optics
© 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.

© 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.
© 2014 Pearson Education, Inc. This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.

© 2014 Pearson Education, Inc. This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.
Geometric Optics of thick lenses and Matrix methods

Geometric Optics of thick lenses and Matrix methods
Aberrations  Aberrations of Lenses  Analogue to Holographic Model  Aberrations in Holography  Implications in the aberration equations  Experimental.

Aberrations  Aberrations of Lenses  Analogue to Holographic Model  Aberrations in Holography  Implications in the aberration equations  Experimental.
3. Image motion due to optical element motion

3. Image motion due to optical element motion
How to explore a system? Photons Electrons Atoms Electrons Photons Atoms.

How to explore a system? Photons Electrons Atoms Electrons Photons Atoms.
Nature of light Ray or geometrical optics Wave or physical optics Quantum theory: W p =hf.

Nature of light Ray or geometrical optics Wave or physical optics Quantum theory: W p =hf.
Fiber Optics Defining Characteristics: Numerical Aperture Spectral Transmission Diameter.

Fiber Optics Defining Characteristics: Numerical Aperture Spectral Transmission Diameter.
Sebastian Thrun & Jana Kosecka CS223B Computer Vision, Winter 2007 Stanford CS223B Computer Vision, Winter 2006 Lecture 2: Lenses and Vision Software.

Sebastian Thrun & Jana Kosecka CS223B Computer Vision, Winter 2007 Stanford CS223B Computer Vision, Winter 2006 Lecture 2: Lenses and Vision Software.

Similar presentations

Ads by Google