Difference between revisions of "Sadiq IPAC 2012"

From New IAC Wiki
Jump to navigation Jump to search
Line 1: Line 1:
 
='''Emittance Measurement of Varian Medical Linac'''=
 
='''Emittance Measurement of Varian Medical Linac'''=
 +
 +
= Links =
 +
 +
Abstract submission: http://www.ipac12.org/abstractsubmission.htm
 +
 +
Ipac12 home: http://www.ipac12.org/index.htm
 +
  
 
= Abstract =
 
= Abstract =

Revision as of 19:13, 15 November 2011

Emittance Measurement of Varian Medical Linac

Links

Abstract submission: http://www.ipac12.org/abstractsubmission.htm

Ipac12 home: http://www.ipac12.org/index.htm


Abstract

Emittance of Varian High Rep-Rate Linac (HRRL) was measured with Optical Transition Radiation (OTR) at 14 MeV. Electron beam was observed at 10 μm thick Al screen. Projection of beam appear to be sharper than Gaussian distribution, and super-Gaussian distribution were fitted. Quadrupole scanning method shows that horizontal and vertical are 11.4±0.6 μm and 9.3±1.8 μm respectively.


Introduction

Experiment Setup

Experimental setup is shown in the following two figures.

Fig. HRRL beamline.
Fig. Imaging system for HRRL.

We chose one of the quad at a time to do the scan and turned off all the other quads. Optical transition radiation was observed at OTR target. At the end of 0 degree beamline we have a Faraday cup to measure the charge of the beam. Camera cage system was located below the OTR target. There are 3 lenses used to focus lights from target to the CCD camera. Target can be pushed into or taken out of the beamline by the actuator at the top.








Go back