Difference between revisions of "MEIC R&D Meeting (2:30 PM Thursday)"

Revision as of 13:32, 20 July 2017

Talks

2017-07-20

Working Group/Collaboration Progress Update
- Michalski, Tim Engineering Issues
Satogata, Todd Update on the visit to ANL
Li, Rui Detailed Studies of Longitudinal Coupled Bunch Instabilities in JLEIC
Benson, Steve Cooler Design Status - July 2017

2017-06-15

Working Group/Collaboration Progress Update
- Rimmer, Bob SRF and Fast Kicker
- Michalski, Tim Engineering Issues
McIntyre, Peter Update on Super-ferric Dipole Development

2017-06-08

Working Group/Collaboration Progress Update
- Lin, Fanglei/Morozov, Vasiliy IR / Non-linear studies
- Morozov, Vasiliy Crab Crossing / Crab Cavity
- Sullivan, Mike IR SR background update
- Li, Rui Instabilities and Collective Effect
Pilat, Fulvia JLEIC R&D Plan for FY17 and FY18
Wei, Guohui Dynamic Aperture with Tune Scan and Selection of Working Point

2017-06-01

Working Group/Collaboration Progress Update
- Benson, Steve Cooler Design
- Suleiman, Riad Magnetized Beam LDRD Progress Report
- Roblin, Yves Simulations/Instabilities
Hutton, Andrew JLEIC ERL “Ring” with Twin Axis Cavity

2017-05-02

Working Group/Collaboration Progress Update
- Todd Satogata Ion Injector Complex/Parameter Development
- Brahim Mustapha (ANL) Ion Linac
- Fanglei Lin/Vasiliy Morozov Electron Polarization Ion Polarization
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2017-04-06
- Sullivan, Michael Summary of the FCC-ee IR Workshop Jan 2017 at CERN
2017-03-23
- Working Group/Collaboration Progress Update
  - Rimmer, Bob SRF / Fast kicker
  - McIntyre, Peter Super-ferric magnets
- Sosa, alvador General Remarks on Crab Test at SPS Facility
- Li, Rui Status of Instability Estimation for JLEIC
2017-03-16
- Working Group/Collaboration Progress Update
  - Morozov, Vasiliy IR / Non-linear studies
  - Morozov, Vasiliy Crab Crossing / Crab Cavity
  - Sullivan, Michael IR SR background update
- Wei, Guohui First Discussion on the Magnet Layout in IR for the Detector Solenoid Compensation
- Zhang, Yuhong JLEIC Luminosity Discussion
2017-03-09
- Working Group/Collaboration Progress Update
  - Steve Benson Cooler Design
  - Riad Suleiman Magnetized Electron Source
  - Yves Roblin Simulations/Instabilities
- Vasiliy Morozov Proposed R&D Plan for Polarized Beams at JLEIC (Kondratenko collaboration)
2017-03-02
- Working Group/Collaboration Progress Update
  - Todd Satogata Ion Injector Complex/Parameter Development
  - Brahim Mustapha (ANL) Ion Linac
  - Fanglei Lin/Vasiliy Morozov Ion and Electron Polarization
- Haipeng Wang Preliminary Results of Transient Beam Load and Loss Experiment at BECP-II, IHEP
2017-02-23

Discussion of Report of the Community Review of EIC Accelerator R&D
Report of the Community Review of EIC Accelerator R&D for the Office of Nuclear Physics
- Krafft, Geoff JLEIC Electron Cooling
- Michalski, Tim JLEIC Magnet R&D
- Wang, Haipeng JLEIC SRF and Crab Cavity
- Satogata, Todd JLEIC Ion Injector and Beam Physics
- Morozov, Vasiliy JLEIC Interaction Region and crab Physics
- Lin, Fanglei JLEIC Polarization & e-Ring Injection
- Roblin, Yves JLEIC Beam-Beam effect
- Li, Rui JLEIC Collective Effects
2017-02-16
- Wei, Guohui Progress on 2017-LDRD-6: Geometry tagging for heavy ions at JLEIC
2017-02-09
- Zhang, Yuhong JLEIC Accelerator R&D Meeting Reorganization
- Li, Rui Discussion of Impedance Budget
2017-02-02
- Kondratenko, Anatoliy (delivered by Morozov, Vasiliy) Effects of acceleration and transition energy crossing on ion polarization
- Nissen, Edward An Analytic understanding of the emittance growth caused by the beam-beam effect in round beams
2017-01-26
- Fazenbaker, David Update on JLEIC site development
- Hernandez-Garcia, Carlos Update on magnetized electron gun development
- Roblin, Yves Beam-beam simulations work plan
2017-01-12
- Zhang, Yuhong JLEIC Main Parameters with Strong Electron Cooling
- Benson, Steve Electron Cooling Work Plan for New Strong Cooling Baseline
- Zhang, He Electron Cooling Simulation for New JLEIC Baseline With Strong Cooling
2016-12-08
- Pilat, Fulvia EIC R&D Panel Review
- Zhang, He Electron Cooling Work Plan for New Strong Cooling Baseline
- Wei, Guohui Integration of Detector Solenoids into the JLEIC ion collider ring
- Derbenev, Slava Magnetized Electron Cooling at a non-magnetized e-gun
2016-10-20
- Pilat, Fulvia EIC R&D Plans
2016-09-29
- Tsai, Cheng-Ying Vlasov Analysis of Microbunching Gain for Magnetized Beams
- Morozov, Vasiliy Overview of Jefferson Lab EIC Design and R&D
2016-09-22
- Michalski, Tim Transforming JLEIC Lattice Files into CAD - Status and Path Forward
- Lin, Fanglei Spin Dynamics at Jefferson Lab Electron Ion Collider (JLEIC)
2016-09-08
- Morozov, Vasiliy Vertical Dogleg Options for the Ion Collider Ring
2016-09-01
- Tsai, Cheng-Ying Vlasov Analysis of Micro-bunching Instability for Magnetized Beams
2016-08-25
- Lin, Fanglei Summary of JLEIC Electron Ring Nonlinear Dynamics Studies
- Wei, Guohui Impact of Ground Motion on the JLEIC Collider Rings
2016-08-11
- Sosa, Salavdor Status and plans for crab crossing studies at JLEIC pdf version
- Nissen, Edward Updates on the beam-beam effect in JLEIC pdf version
2016-08-04
- Wang, Shaoheng 1D Modeling for Pulsed e Cooling
- Lin, Fanglei Alternate JLEIC Electron Collider Ring Designs --Use New Magnets to Obtain a Small Emittance
2016-07-28
- Li, Rui Overview of HB2016 Workshop
- Wang, Haipeng Progress Report on the Data Analysis of Bunched Electron Cooling Experiment
2016-06-23
- Satogata, Todd Bunch Splitting Simulations for the JLEIC Collider Ring
- Li, Rui The Status of Collective Effects in JLEIC
- Kondratenko, Anatoliy (Morozov, Vasiliy) Spin Tracking the JLEIC Ion Collider Ring: Polarization Control and Spin Flip
2016-06-16
- Benson, Steve An Update on the ERL Cooler Ring Development
2016-06-09
- Wang, Shaoheng An Update on the Maximum Beam Current with Feedback for Electron Ring of JLEIC
- Derbenev, Slava Proposal for Research on Electron Beam for High Energy Cooling for EIC
2016-06-02
- Pilat, Fulvia JLEIC Updates and Plans
- Harward, Leigh Cost Estimate for 200 GeV Ion Collider Ring with Cos-theta type SC magnets
- Yuhong, Zhang A First Brief Report on Bunched Beam Electron Cooling Experiment at IMP of China
- Wang, Haipeng Cooling of C6+ ion beam with pulsed e beam
- Zhang, He A First Brief Report on Bunched Beam Electron Cooling Experiment at IMP of China
2016-04-28
- Nissen, Ed Beam-beam studies in the LHeC and their applications for JLEIC
2016-04-28
- Derbenev, Slava Annular Electron Cooling
- Li, Rui Transverse Single-Bunch Instability at JLEIC
2016-04-21
- Lin, Fanglei Polarized Positrons for JLEIC
2016-04-14
- Benson, Stephen Cooler Design Studies Status
- Guo, Jiquan Options for JLEIC boosters
2016-04-07
- Pilat, Fulvia Collaboration Meeting Follow-Up
- Morozov, Vasiliy Alternative Ion Injector Design I
- Derbenev, Slava Alternative Ion Injector Design II
2016-03-24
- Wang, Shaoheng SRF Cavity updates and PEP II Cavity's Application in JLEIC Electron Ring " Movie01 "
- Huang, Yulu Progress Report on the Ultra-fast Harmonic Kicker Cavity Design and Beam Dynamic Simulation
- Wei, Guohui Update on Detector Solenoid Compensation in the JLEIC
2016-03-17
- Wang, Haipeng Robinson Peterson Instability Study with Direct RF Feedback Model and its Cross-check with BEPC Data
- Derbenev Yaroslav Considerations on ERL-based Magnetized Electron Cooler
- Benson, Steve Cooler Specifications
2016-03-10
- Lin, Fanglei Overview of JLEIC Electron Collider Ring Design Options for Control of the Emittance
2016-03-03
- Wei, Guohui Field Quality Requirement Study of Triplet FFQ for JLEIC ion collider ring
2016-02-25
- Pilat, Fulvia Outcome of the Accelerator Advisory Committee Review
- Bogacz, Alex Ion Booster Design with Imaginary Transition Gamma
2016-02-18
- Li, Rui Longitudinal Single-Bunch Instability in the JLEIC Design
2016-01-28
- Benson, Steve Cooler Design Studies Status
- Hannon, Fey Magnetized Beam LDRD " Movie01 "" Movie02 "
2016-01-21
- Kondratenko, Anatoliy Spin-tracking proton and deuteron polarizations in racetrack and figure-8 boosters
2016-01-14
- Wang, Haipeng IMP CSRm Cooler Ring 1MHz/3MHz Modulation Experiment on BPMs
2015-12-17
- Pilat, Fulvia Year-End Summary and JLEIC Outlook for 2016
- Marhauser, Frank SRF Cavity Optimization Rationales for JLEIC
- Kondratenko, Anatoliy Status of Proton and Deuteron Spin Tracking in Racetrack Booster
2015-12-10
- Benson, Steve Cooler Design Studies Status
- Zhang, He Cooling with a Cylindrical Electron Bunch
- Morozov, Vasily Beam Considerations for 2nd IP
2015-12-03
- Wei, Guohui Multipole Limit Survey of FFQ and Large-beta Dipole
- Powers, Tom IMP Cooler Ring E-Gun Pulser Options
2015-11-19
- Wei, Guohei Dynamic Aperture Sensitivity to Multipoles
- Morozov, Vasily Detector Solenoid Compensation
2015-11-05
- Guo, Jiquan Update on MEIC Ion Beam Formation Scheme
2015-10-29
- Pilat, Fulvia Status & plans
- Terzic, Balsa Status of GHOST development: long-term tacking and beam-beam simulations
- Wei, Guohui Dynamic aperture with realistic multipoles of super-ferric dipoles for the ion ring
2015-09-24
- Wei, Guohui,(1) Comparison of CCB scheme and -I scheme of MEIC ion ring lattice with error
  (2) Decoupling and matching of electron cooling section in the MEIC ion ring
- Sy, Amy Development of an Ultra Fast RF Kicker for an ERL-based Electron Cooler
2015-09-17
- MEIC Collaboration Meeting Fall 2015
- Derbenev, Slava, Analytical estimations of Space Charge Impacts in RF accelerator and solenoids of a magnetized cooler
- Wang, Haipeng Beam Diagnostic System Analysis in HIRFL-CSRm at IMP, China for the Bunched Beam Electron Cooling Demo Experiment
- Guo, Jiquan Choice of Harmonic Number with the Consideration of Ion Beam Formation
2015-09-10
- Kondratenko, Anatoliy (delivered by Vasiliy Morozov) Racetrack booster option & initial ion spin tracking results
- Li, Rui Considerations of Electron Cloud Effects in the MEIC Design
2015-09-03
- Benson, Steve MEIC Cooling Ring Status
2015-08-27
- Derbenev, Slava Thoughts on the Near Term MEIC Accelerator R&D
- Update on MEIC Ion Linac Design at ANL
2015-08-20
- Hiatt, Tommy PEP_II Feasibility in the MEIC Electron Collider Ring
- Lin, Fanglei Update on the Electron Polarization Study in the MEIC
- Wei, Guohei First Look at Error Sensitivity in MEIC
2015-08-13

Discussions on Beam Synchronization (Part III)
- Morozov, Vasily Illustration of Scanning Synchronization Scheme
- Zhang, Yuhong More on MEIC Beam Synchronization
- Guo, Jiquan Electron Ring Bypass Line
- Morozov, Vasily More on Moving Magnets
- Zhang, Yuhong Non-pairwise Collision Pattern
2015-08-06

Discussions on Beam Synchronization (Part II)
- Morozov, Vasily Illustration of Beam Synchronization Issue
- Derbenev, Slava Proposed R&D Topics for scanning Synchronization Scheme
- Kazakevich, Grigory More on Scanning Synchronization Scheme
- Michalski, Tim MEIC Shifting Magnets
2015-07-30
- Pilat, Fulvia MEIC Accelerator R&D Plan
- Discussions on Beam Synchronization (Part I) [1]
2015-07-23

Special MEIC R&D Meeting (Beam Synchronization)
- Pilat, Fulvia Introduction
- Morozov, Vasiliy Conventional synchronization schemes
- Derbenev, Slava Scanning synchronization scheme
- Rimmer, Bob Cavity tuning options for synchronization
- Kazakeritch, Gregory RF Sources for scanning Synchronization of Colliding Bunches for MEIC project
- Popov, Vladimir What is a Photocunductive Semiconductor Switch (PCSS
- Satogata, Todd Dynamical effects in MEIC gear-changing collider rings
- Terzic, Balsa Introduction of GHOST and its application to beam synchronization study
- Discussions
2015-07-16
- Lin, Fanglei Optimization of the Optics in the Matching and Spin Rotator Sections to Reduce the Electron Emittance
- Morozov, Vasiliy Update on MEIC Ion Polarization Work
- Wang, Shaoheng SRF R&D for MEIC
2015-07-09
- David Douglas New idea on flat to round beam transform
- Fay Hannon Progress in determining the feasibility of a flat beam
- Chris Tennan MEIC Cooler Linac Acceptance Studies
- He Zhang Specification on the projected energy spread in the bunch
2015-06-25
- Guo, Jiquan Harmonic Stripline Kicker for MEIC cooling
2015-06-18
- Morozov, Vasily, Update on Nonlinear Beam Dynamics Studies (file1, file2, file3, file4)
- Wang, Shaoheng Direct Feedback Analysis for RF Cavity System
- Wang, Yulu Ultra-Fast Harmonic Resonant Kicker Design(Update after ERL 2015 Workshop)
2015-06-05
- Sullivan, Michale Some of the Points Raised During my JLAB Visit
2015-05-28
- Sy, Amy Fast Kicker Beam Dynamics Simulations
2015-05-21
- Pilat, Fulvia MEIC Design Update
- Lin, Fanglei Reduce the Emittance in the MEIC e-Ring by Offsetting the Beam in Quads
- Update on MEIC Activities at ANL
- Derbenev, Slava Thoughts on Optimization of the MEIC Ion Injector & Cooling�
2015-04-23
2015-04-16
- Suleiman, Riad Generation of Magnetized Bunched Electron Beam for MEIC Cooler pptx pdf
- Li, Rui Preliminary Overview of Collective Effects in MEIC
- Guo, Jiquan CEBAF Pulsed Mode Operation for MEIC Proof of Principle Study Proposed for FY 2015-16 LDRD
2015-04-09
- Morozov, Vasiliy Update on MEIC Nonlinear Dynamics Work
- Nosochkov, Y. Ion ring lattice with -I sextupole pairs for ir chromaticity correction
- Morozov, Vasiliy Update on MEIC Ion Polarization Work
- Huang, Yulu Harmonic Resonant Kicker Design for the MEIC Electron Circular Cooler Ring
2015-03-26
- Tsai, Cheng-Ying Study of wiggler CSR effect on electron ring of MEIC
- Wang, Min-Huey Status of non-linear dynamics studies
- Morozov, Vasiliy Update on MEIC Nonlinear Dynamics Work
- Morozov, Vasiliy Update on MEIC Ion Polarization Work
- Zhang, He Updates for experimental demonstration of cooling by a bunched electron beam
2015-03-19
- Castilla, Alejandro CRABBING DYNAMICS IN THE MEIC, a 1ST look. pdf pptx
- Guo, Jiquan DTL for MEIC Ion Injection
2015-03-12
- Castilla, Alejandro Crabbing and frequency in the MEIC pdf pptx
- Huang, He Fast calculation method for Coulomb interaction between a bunch of charged particles
2015-03-05
- Pilat, Fulvia NSAC Committee Report MEIC R&D
- Zhang, Yuhong MEIC Ion Injection Scheme with Low Energy Warm Linacs
- Bogacz, Alex LDRD LOI Lattice Mitigations of Luminosity limits for MEIC
2015-02-19
- Call for presentation
- Kondretenko, Anatoly (delivered by Morozov, Vasiliy) Complete baseline scheme for ion polarization preservation and control in the MEIC ion complex
- Guo, Jiquan MEIC low rep-rate operation and path length
- McIntyre, Peter IR quad conceptual design & Strong Focusing Cyclotron injector conceptual design
- Bogacz, Alex Superconducting or Warm Ion Linac for MEIC
2015-02-12
- Lin, Fanglei Electron Ring IP Region Optics
- Nosochkov, Yuri Update on study of chromaticity correction schemes for ion ring
- Wang, Min-Huey Status of non-linear dynamics correction studies
2015-02-05
- Zhang, Yuhong Call for Presentations in MEIC Accelerator R&D Meeting
- Lin, Fanglei MEIC e-Ring Damping Wiggler (2)
- Morozov, Vasiliy First results of proton spin tracking in a figure-8 ring
- Zhang, Yuhong MEIC New Baseline: Part 10 No bunched beam cooling during collision
2015-01-07
- Lin, Fanglei MEIC e-Ring Damping Wiggler
- Zhang, Yuhong MEIC New Baseline: Part 7
- Zhang, Yuhong MEIC New Baseline: Part 8
- McIntyre, Peter Arc magnets for a 120 GeV ICR ring design
2014-12-11
- Zhang, Yuhong MEIC New Baseline: Performance and Accelerator R&D
2014-12-04
- Zhang, Yuhong MEIC New Baseline: Luminosity Performance and Upgrade Path
2014-11-20
- Used PEP-II 476 MHz Cavities for MEIC Collider Rings
- McIntyre, Peter Report from ICR Magnet Design Team
- Zhang, Yuhong The Feasibility of Using RHIC Magnets for MEIC and Cost Impact
2014-11-13
- Zhang, Yuhong Action Items for Supporting Cost Review
- Wang, Shaoheng RF Parameters for New 2.2 km MEIC Design
- Bogacz, Alex Booster to Ion Ring Transfer Line
2014-11-06
- Guo, Jiquan MEIC E-ring using SLAC 476MHz RF system and CEBAF as injector
- Wang, Shaoheng RF Parameters for New 2.2 km MEIC Design
- Lin, Fanglei MEIC Electron Collider Ring Using PEP-II Magnets
- Bogacz, Alex Pre-Booster Re-design
- Zhang, Yuhong New MEIC Design
2014-10-30
- Pilat, Fulvia MEIC Goals, Status and draft Organization
- Pilat, Fulvia MEIC StatuS
- Zhang, Yuhong MEIC Alternative Design Part V
- MEIC system defintion needs
2014-09-18
- Lin, Fanglei Feasibility of Reusing PEP-II Hardware for MEIC Electron Ring
- Bogacz, Alex Ion Collider Ring with Imaginary gamma_t
- Feedback from the Temple Town Meeting
- Zhang, Yuhong MEIC Alternative Design Part IV: PEP magnets for MEIC e-ring (FODO Lattice)
2014-09-04
- Parameters Changed in New MEIC Design
- Zhang, He Development of ERL-CC cooler parameters: preliminary consideration for the cooler solenoid
- Morozov, Vasiliy High-Luminosity Detector Region Optics
- Zhang, Yuhong MEIC Alternative Design Part III
2014-08-28
- Morozov, Vasiliy Recap of Conversation with Kovalenko
- Derbenev, Ya The MEIC electron ring as the large ion booster
- Zhang, Yuhong MEIC Alternative Design Part II
2014-08-21
- Lin, Fanglei Possibility of Recuperating PEP-II HER Magnets for MEIC Electron Ring (III)
- Morozov, Vasiliy Ion Collider Ring Using Superferric Magnets
- Zhang, Yuhong An Alternate Design of MEIC
2014-08-20
- Derbenev, Ya MEIC with Super-Ferric and PEP-II Magnets
2014-08-14
- Lin, Fanglei Possibility of Recuperating PEP-II HER Magnets for MEIC Electron Ring (II)
- Zhang, Yuhong MEIC Parameter Space and Luminosity Performance
- Pilat, Fulvia MEIC Goals, Status and draft Organization
- Feasibility of Recuperation of Magnets in Decommissioned Storage Rings
2014-08-07
- Lin, Fanglei Possibility of MEIC Arc Cell Using PEP-II Dipole
- Bogacz, Alex Large Ion Booster Re-design Update
- Zhang, Yuhong MEIC Cooling Electron Beam
2014-07-24
- Douglas, David 12 Steps to a Cooler Design
- Zhang, He Weak Cooling Simulation
- Wang, Haipeng Transient Beam Loading Effects in RF System for the CEBAF and Electron Storage Rings and its Control Strategies to the MEIC Injection, Storage and Synchronization (Part I)
2014-07-07
- Morozov, Vasiliy Arc FODO Cell Inventory
2014-06-26
- Wang, Shaoheng Robinson Instability Criteria for MEIC e Ring
- Wang, Haipeng Transient Beam Loading Effects in RF System for the Electron Storage Rings and its Control Strategies to the MEIC Injection, Storage and Synchronization (Part I)
2014-06-12
- MEIC Tasks (June 4, 2014)
- Roblin, Yves Transfer Line for EIC
2014-06-05
- Li, Rui Longitudinal Coupled Bunch Instability in MEIC Electron Collider Ring
- Morozov, Vasiliy Path Length Chicane Options
- What Could Be Scavenged from RHIC if It Was Shut Down?
- Derbenev, Ya Synchronization options for MEIC
2014-05-29
- Derbenev, Ya Synchronization options for MEIC
- Morozov, Vasiliy Ion Path Length Compensation with Chicane
2014-05-22
- Derbenev, Ya Synchronization options for MEIC
2014-03-05
- Zhang, Yuhong MEIC Electron Cooling: Do we have a Baseline Design and What is it?

@@ Line 10: / Line 10: @@
 <li>Satogata, Todd Update on the visit to ANL </li>
-<li>Li, Rui [http://casa.jlab.org/MEIC%20meeting/20170720/Detailed_Studies_of_LCBI_in_JLEIC_July_20.pdf Detailed Studies of Longitudinal Coupled Bunch Instabilities in JLEIC]</li>
+<li>Li, Rui [http://casa.jlab.org/MEIC%20meeting/20170720/Detailed_Studies_of_LCBI_in_JLEIC.pdf Detailed Studies of Longitudinal Coupled Bunch Instabilities in JLEIC]</li>
 <li>Benson, Steve [http://casa.jlab.org/MEIC%20meeting/20170720/Cooler_ring_status_July20.pptx Cooler Design Status - July 2017]</li>

Difference between revisions of "MEIC R&D Meeting (2:30 PM Thursday)"

Revision as of 13:32, 20 July 2017

Contents

Talks

2017-07-20

2017-07-13

2017-07-05

2017-06-29

2017-06-22

2017-06-15

2017-06-08

2017-06-01

2017-05-02

2017-04-06

2017-03-23

2017-03-16

2017-03-09

2017-03-02

2017-02-23

2017-02-16

2017-02-09

2017-02-02

2017-01-26

2017-01-12

2016-12-08

2016-10-20

2016-09-29

2016-09-22

2016-09-08

2016-09-01

2016-08-25

2016-08-11

2016-08-04

2016-07-28

2016-06-23

2016-06-16

2016-06-09

2016-06-02

2016-04-28

2016-04-28

2016-04-21

2016-04-14

2016-04-07

2016-03-24

2016-03-17

2016-03-10

2016-03-03

2016-02-25

2016-02-18

2016-01-28

2016-01-21

2016-01-14

2015-12-17

2015-12-10

2015-12-03

2015-11-19

2015-11-05

2015-10-29

2015-09-24

2015-09-17

2015-09-10

2015-09-03

2015-08-27

2015-08-20

2015-08-13

2015-08-06

2015-07-30

2015-07-23

2015-07-16

2015-07-09

2015-06-25

2015-06-18

2015-06-05

2015-05-28

2015-05-21

2015-04-23

2015-04-16

2015-04-09

2015-03-26

2015-03-19