Capture Efficiency vs Spot Size

Slides:

Advertisements

Similar presentations

COOLING AIR © Commonwealth of Australia 2010 | Licensed under AEShareNet Share and Return licence.

Advertisements

ILC positron source simulation update Wanming Liu, Wei Gai ANL 03/20/2011.

ILC Positron Source Update Wei Gai Posipol ILC RDR baseline schematic (2007 IHEP meeting) Collimator OMD 150GeV e- ~147GeV e- Target TAP (~125MeV)

Compton based Polarized Positrons Source for ILC V. Yakimenko, I. Pogorelsky BNL Collaboration meeting, Beijing, January 29-February1, 2006.

On the Effect of Eddy Current Induced Field Wanming Liu, Sergey Antipov and Wei Gai HEP, ANL.

K.T. McDonald DoE Review Aug. 10, E-166 Experiment E-166 is a demonstration of undulator-based polarized positron production for linear colliders.

Defining Target Tolerances. Expressing Target Requirements At Least X: –Target value has a lower bound of X –No upper bound –Example: each box will hold.

Report on E-165 Steve Schnetzer MCC Meeting June 28.

E166 “Polarized Positrons for Future Linear Colliders” John C. Sheppard E166 Co-spokesman SLAC: August 31, 2004.

Preliminary result on Quarter wave transformer simulation a short lens with a high magnetic field and a long solenoidal magnetic field. Field profile of.

Simulation on ILC undulator based source with liquid lead target Wanming Liu ANL.

Simulations of the Rotating Positron Target in the Presence of OMD Field* S. Antipov+, W. Liu, W. Gai Argonne National Lab +also Illinois Institute of.

Performance Studies on the Undulator Based ILC Positron Source Wei Gai ANL For ILC positron collaboration BAW II January 20, 2011,

16 th June 2008 POSIPOL 2008L. Rinolfi / CERN CLIC e + sources status L. Rinolfi with contributions from F. Antoniou, H. Braun, A. Latina, Y. Papaphilippou,

Undulator Based ILC Positron Source Studies Wei Gai Argonne National Laboratory CCAST ILC Accelerator Workshop Beijing, Nov 5 – 7, 2007.

Design of the Photon Collimators for the ILC Positron Helical Undulator Adriana Bungau The University of Manchester Positron Source Meeting, July 2008.

Simulation of Positron Production and Capturing. W. Gai, W. Liu, H. Wang and K. Kim Working with SLAC & DESY.

Helical Undulator Based Positron Source for LC Wanming Liu 05/29/2013.

EXAMPLE 27.1: A copper wire carries a current of 10 A. It has a cross- sectional area of 0.05 cm 2. Estimate the drift velocity of the electrons.

S2E optics design and particles tracking for the ILC undulator based e+ source Feng Zhou SLAC ILC e+ source meeting, Beijing, Jan. 31 – Feb. 2, 2007.

ILC undulator based RDR e+ source: Yields and Polarizations for QWT capturing and different drive beam energy: Wei Gai, Wanming Liu Argonne National Lab.,

Update on ILC Positron source study at ANL since the Durham/UK Meeting10/2010 Wan-Ming Liu, Wei Gai.

1) 1/4 A 2) 1/2 A 3) 1 A 4) 2 A 5) 5 A Given that the intermediate current is 1 A, what is the current through the lightbulb? ConcepTest 33.1b Transformers.

20 April 2009 AAP Review Global Design Effort 1 The Positron Source Jim Clarke STFC Daresbury Laboratory.

Heat load of the radiation cooled Ti target of the undulator based e+ source Felix Dietrich (DESY, TH-Wildau),Sabine Riemann(DESY), Andriy Ushakov(U- Hamburg),

Thyristor Converters or Controlled Converters

1 Alexander Mikhailichenko Cornell LEPP, Ithaca, NY Linear Collider Workshop of Americas ALCPG, September 30, 2009 Albuquerque NM LITHIUM LENS STUDIES.

Undulator Based ILC Positron Source Parameters Wei Gai ANL ALLCPG 2011 March 20, 2011,

10 mm depth 16 mm depth BEFORE AFTER. TiTi alloyDiff. % 2 mm10 mm16 mm2 mm10 mm16 mm Adriana GEANT ~7% Luis FLUKA ~10.

10/9/2007 Global Design Effort 1 Optical Matching Device Jeff Gronberg / LLNL October 9, 2007 Positron source KOM - Daresbury This work performed under.

Ian Bailey Cockcroft Institute/ Lancaster University IWLC October 21 st, 2010 Overview of Undulator-Based Sources for LC.

R.Chehab/ R&D on positron sources for ILC/ Beijing, GENERATION AND TRANSPORT OF A POSITRON BEAM CREATED BY PHOTONS FROM COMPTON PROCESS R.CHEHAB.

Bounds Bingo!. Pick any 9 of these numbers

Undulator based polarized positron source for Circular electron-positron colliders Wei Gai Tsinghua University/ANL a seminar for IHEP, 4/8/2015.

Update on ILC Production and Capturing Studies Wei Gai, Wanming Liu and Kwang-Je Kim ILC e+ Collaboration Meeting IHEP Beijing Jan 31 – Feb 2, 2007.

Positron Sources for Linear Colliders* Wei Gai JPOS 2009, Jefferson Lab, March 26, 2009 * Acknowledgement of contributions from the ILC and CLIC e+ collaborations.

Undulator Based ILC positron source for TeV energy Wanming Liu Wei Gai ANL April 20, 2011.

A 500 MeV S-band Low Cost Electron Beam Source for ILC Keep Alive Source Goal: MeV, 3 nC, ~ 1 mm on ILC Ti Target Wei Gai, ANL.

1 Positron Source AD & I Report Jim Clarke ASTeC & Cockcroft Institute Daresbury Laboratory.

实验十四紫外线灭菌  一、实验背景及目的：  灭菌是一种杀灭微生物的措施。紫外线灭菌是物理灭菌因素之一。  1. 了解紫外线灭菌的原理；  2. 学习、掌握紫外线灭菌的方法。版权所有未经作者同意请勿使用.

ILC Positron Production and Capturing Studies: Update Wei Gai, Wanming Liu and Kwang-Je Kim Posipol Workshop, Orsay, France May 23-25, 2007 Work performed.

Positron Source for Linear Collider Wanming Liu 2013 DOE Review.

Transformations ENLARGEMENTS A Enlarge: Scale factor 2 5cm 3cm 2cm 4cm 10cm 6cm A´A´

Spin Tracking at the ILC Positron Source with PPS-Sim POSIPOL’11 V.Kovalenko POSIPOL’11 V. Kovalenko 1, G. Moortgat-Pick 1, S. Riemann 2, A. Ushakov 1.

The reading is 7.38 mm. The reading is 7.72 mm.

Positron Source for Linear Collider Wanming Liu 04/11/2013.

ILC Positron Production and Capturing Studies: Update Wei Gai, Wanming Liu and Kwang-Je Kim ILC GDE Meeting DESY May 30 – Jun2, 2007 Work performed for.

10 mm is the same as... 1 cm. 20 mm is the same as... 2 cm.

Some Aspects on Compton Scheme Positron Source Study Wanming Liu ANL Tsunehiko OMORI KEK.

输尿管软镜钬激光碎石术的体会南华大学附属第二医院泌尿外科三区钱坤. 背景  输尿管软镜作为一种新碎石手段，目前在部分医院应用。其安全性、有效性得到一致的认可。  但是存在一些问题需要探讨：  手术适应症、禁忌症  影响碎石成功率的因素  手术并发症的防治.

Update on e+ Source Modeling and Simulation

KEKB/SuperKEKB positron source a review and the status

From: Gas-Filled Encapsulated Thermal-Acoustic Transducer

What are transformers and how do they work?

ILC RDR baseline schematic (2007 IHEP meeting)

Cesium Telluride Photocathode Preparation at Argonne

Alexander Mikhailichenko July 22, 2008

ILC RDR baseline schematic (2007 IHEP meeting)

Nozzles and Drift Reduction

Unit-Ramp Response System & Control Engineering Lab.

Anomalous Data Spot the anomaly.

and their missing lengths

,. . ' ;; '.. I I tI I t : /..: /.. ' : ····t I 'h I.;.; '..'.. I ' :".:".

SCU Phase Shifter Meeting

Converting Between Measures

Lab: AC Circuits Integrated Science II.

Presentation transcript:

Capture Efficiency vs Spot Size Wanming Liu, Wei Gai ANL Aug 15, 2007

Conditions 100m undulator, K=0.92, lu=1.15cm Target: Ti, 0.4 rl Drift to target: from 450m up to 700m(spot size: 1.5mm up to 2.3mm) Immersed case: 6T-0.5T, 20cm Non Immersed case: ramp(0-6T) 2cm, 6T-0.5T 20cm Quarter wave transformer: 1T-0.5T, 2cm DC coil

Capture efficiency Capture efficiency lowered by 10% for immersed target when spot size increased from s ~1.5mm up to ~2.3mm. For non immersed case, the capture efficiency dropped by ~ 14%. For quarter wave transformer, the capture efficiency doesn’t change with spot size within the range of 1.5mm to 2.3mm