Presentation is loading. Please wait.

Presentation is loading. Please wait.

Collimation and tagging instrumentation for the GlueX photon beamline Richard Jones Igor Senderovich, Anne-Marie Carroll University of Connecticut APS/DNP.

Published byLayne Jenkins Modified over 9 years ago

Similar presentations

Presentation on theme: "Collimation and tagging instrumentation for the GlueX photon beamline Richard Jones Igor Senderovich, Anne-Marie Carroll University of Connecticut APS/DNP."— Presentation transcript:

1 Collimation and tagging instrumentation for the GlueX photon beamline Richard Jones Igor Senderovich, Anne-Marie Carroll University of Connecticut APS/DNP meeting, Newport Beach, Oct 24-27, 2012

2 APS/DNP meeting, Newport Beach, Oct. 24-27, 20122 Top View 75 m Tagger Area Experimental Hall D Electron beam / dump Coherent Bremsstrahlung photon beam Solenoid- Based detector Collimator Photon Beam dump Counting House Radiator PairSpectrometer Collimator Cave Beam contains both coherent and incoherent components. Only the coherent component is polarized. Only the coherent component is polarized. Collimation suppresses incoherent part. Eg (GeV) intensity (/GeV) no collimator with collimator Tagging Spectrometer Beamline Overview

3 APS/DNP meeting, Newport Beach, Oct. 24-27, 20123 Tagging spectrometer crystal radiator 12 GeV electrons post-bremsstrahlung electrons focal plane hododscope 500 scint. fibers 2mm x 2mm SiPM readout 3MHz rate/fiber s t = 200ps

4 APS/DNP meeting, Newport Beach, Oct. 24-27, 20124 Photon collimator crystal radiator 12 GeV electrons photon beam collimator (75m downstream) 3.4mm aperture ~5mm RMSphoton “spot” ~5mm RMS 15% power transmission shielded alcove

5 APS/DNP meeting, Newport Beach, Oct. 24-27, 20125 Collimator requirements  x < 200  m dynamic range resolution bandwidth robustness 0.5 nA – 5  A 200  m RMS > 60 Hz radiation hardradiation hard stable gainstable gain reliablereliable

6 APS/DNP meeting, Newport Beach, Oct. 24-27, 20126 Collimator design Tungsten pin-cushion design  Miller and Walz, NIM 117 (1974) 33-37  measures current due to knock- ons in EM showers 12 cm beam tungsten plates tungsten pins insulating support tungsten pin cushion incident gamma e+ e- charge asymmetry comes from high-energy delta rays “knock-ons”

7 APS/DNP meeting, Newport Beach, Oct. 24-27, 20127 Beam test – April 2011 James McIntyre Brendan Pratt Igor Senderovich +Alex Somov, Hovanes Egyan prototype detector installed in Hall B photon dump area

8 APS/DNP meeting, Newport Beach, Oct. 24-27, 20128 Run conditions beam energy: 3.36 GeV current: 15 nA, 60 nA precollimator: 2.6 mm radiator: 10 -4 radiation lengths, gold stability – very good sampling frequency 333kHz

9 APS/DNP meeting, Newport Beach, Oct. 24-27, 20129 Active collimator data sweep collimator horizontally across beam, observe raw currents on wedges

10 APS/DNP meeting, Newport Beach, Oct. 24-27, 201210 Active collimator data near the aperture look at asymmetry raw offsets not removed gain ~ 15% / mm centered at 14.28 cm V right – V left V left + V right

11 APS/DNP meeting, Newport Beach, Oct. 24-27, 201211 Active collimator data electronic noise is negligible raw asymmetry signal: moving through beammoving through beam out of beamout of beam

12 APS/DNP meeting, Newport Beach, Oct. 24-27, 201212 Active collimator data results @ 60nA beam noise floor: readout noise floor amplifier bandwidth 18  m @ 600Hz scaling to 0.6nA 130  m @ 120Hz beam noise floor digitization noise floor 3  m @ 600Hz readout noise floor

Download ppt "Collimation and tagging instrumentation for the GlueX photon beamline Richard Jones Igor Senderovich, Anne-Marie Carroll University of Connecticut APS/DNP."

Similar presentations

Overview of the GlueX Tagger and Photon Beamline..

Overview of the GlueX Tagger and Photon Beamline..
Polarized Photon Beam Instrumentation for GlueX Part 1: active collimation Part 2: polarimetry Richard Jones, University of Connecticut GlueX collaboration.

Polarized Photon Beam Instrumentation for GlueX Part 1: active collimation Part 2: polarimetry Richard Jones, University of Connecticut GlueX collaboration.
Beam test of the microscope prototype and active collimator preliminary report on the parasitic beam tests in Hall B April 2011 Richard Jones, Igor Senderovich,

Beam test of the microscope prototype and active collimator preliminary report on the parasitic beam tests in Hall B April 2011 Richard Jones, Igor Senderovich,
Pair Spectrometer Design Optimization Pair Spectrometer Design Optimization A. Somov, Jefferson Lab GlueX Collaboration Meeting September 9 2009.

Pair Spectrometer Design Optimization Pair Spectrometer Design Optimization A. Somov, Jefferson Lab GlueX Collaboration Meeting September
Hall D Photon Beam Simulation and Rates Part 1: photon beam line Part 2: tagger Richard Jones, University of Connecticut Hall D Beam Line and Tagger Review.

Hall D Photon Beam Simulation and Rates Part 1: photon beam line Part 2: tagger Richard Jones, University of Connecticut Hall D Beam Line and Tagger Review.
Upcoming Review of the Hall D Photon Beam and Tagger Richard Jones, University of Connecticut, for the GlueX collaboration GlueX Collaboration Meeting.

Upcoming Review of the Hall D Photon Beam and Tagger Richard Jones, University of Connecticut, for the GlueX collaboration GlueX Collaboration Meeting.
Microscope Performance at elevated dark rates Richard Jones University of Connecticut collaboration GlueX collaboration meeting, Newport News, Feb. 2-4,

Microscope Performance at elevated dark rates Richard Jones University of Connecticut collaboration GlueX collaboration meeting, Newport News, Feb. 2-4,
By Chelsea Sidrane Mentor: Dr. Richard Jones. GlueX The goal of GlueX is to study the concept of confinement in those particles that display some degree.

By Chelsea Sidrane Mentor: Dr. Richard Jones. GlueX The goal of GlueX is to study the concept of confinement in those particles that display some degree.
Tagger Microscope:  Performance Features Under Test Detector Alignment  Simulations show that when fiber axis is aligned to < 3 o of the e - trajectory.

Tagger Microscope:  Performance Features Under Test Detector Alignment  Simulations show that when fiber axis is aligned to < 3 o of the e - trajectory.
James M c Intyre University of Connecticut GlueX Collaboration Meeting JLab, Feb. 2-4, 2011.

James M c Intyre University of Connecticut GlueX Collaboration Meeting JLab, Feb. 2-4, 2011.
Active Collimator Test in Hall B Richard Jones, University of Connecticut, for the GlueX collaboration GlueX Collaboration Meeting September 18-20 2008,

Active Collimator Test in Hall B Richard Jones, University of Connecticut, for the GlueX collaboration GlueX Collaboration Meeting September ,
Beam Position Stabilization Using an Active Collimator in Hall D at Jefferson Lab Richard Jones, University of Connecticut, for the GlueX collaboration.

Beam Position Stabilization Using an Active Collimator in Hall D at Jefferson Lab Richard Jones, University of Connecticut, for the GlueX collaboration.
Electron Beam Simulation for GlueX Richard Jones, University of Connecticut GlueX collaboration meeting April 27-29, 2006 presented by.

Electron Beam Simulation for GlueX Richard Jones, University of Connecticut GlueX collaboration meeting April 27-29, 2006 presented by.
Tagger Electronics Part 1: tagger focal plane microscope Part 2: tagger fixed array Part 3: trigger and digitization Richard Jones, University of Connecticut.

Tagger Electronics Part 1: tagger focal plane microscope Part 2: tagger fixed array Part 3: trigger and digitization Richard Jones, University of Connecticut.
The Hall D Photon Beam Richard Jones, University of Connecticut Hall D Photon Beamline-Tagger ReviewJan. 23-25, 2005, Newport News presented by GlueX Tagged.

The Hall D Photon Beam Richard Jones, University of Connecticut Hall D Photon Beamline-Tagger ReviewJan , 2005, Newport News presented by GlueX Tagged.
Tagger hodoscope and photon beam monitoring D.Sober, F.Klein (CUA) Tagger Review, Jan.23-24, 2006.

Tagger hodoscope and photon beam monitoring D.Sober, F.Klein (CUA) Tagger Review, Jan.23-24, 2006.
Elton S. Smith University of Virginia October 25, 2005 1 Overview Bremsstrahlung Tagging Spectrometer and Photon Beam Review Elton S. Smith Jefferson Lab.

Elton S. Smith University of Virginia October 25, Overview Bremsstrahlung Tagging Spectrometer and Photon Beam Review Elton S. Smith Jefferson Lab.
E166 “Polarized Positrons for Future Linear Colliders” John C. Sheppard E166 Co-spokesman SLAC: August 31, 2004.

E166 “Polarized Positrons for Future Linear Colliders” John C. Sheppard E166 Co-spokesman SLAC: August 31, 2004.
Photon Tagging in the Hall D Beamline James McIntyre University of Connecticut 13 May 20101 GlueX Graduate Student Workshop Newport News, VA.

Photon Tagging in the Hall D Beamline James McIntyre University of Connecticut 13 May GlueX Graduate Student Workshop Newport News, VA.
GlueX Luminosity Limits Richard Jones, University of Connecticut GlueX Collaboration Meeting, Newport News, May 8-10, 2008 1.Design luminosity 2.Physics.

GlueX Luminosity Limits Richard Jones, University of Connecticut GlueX Collaboration Meeting, Newport News, May 8-10, Design luminosity 2.Physics.

Similar presentations

Ads by Google