NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 1.

Slides:



Advertisements
Similar presentations
INFN Milano, Universita` degli Studi Milano Bicocca Siena IPRD May Testbeam results of the CMS electromagnetic calorimeter Alessio Ghezzi.
Advertisements

Addition Facts
Matt Rooney RAL The T2K Beam Window Matt Rooney Rutherford Appleton Laboratory BENE November 2006.
Proposal for a programme of Neutrino Factory research and development WP-3 The Target The Neutrino Factory Target Lead Author - J R J Bennett CCLRC, RAL.
Addition 1’s to 20.
SNS Spallation Neutrino Source 1 SNS layout GeV proton linear accelerator Accumulator ring Main target Stripping foil.
Week 1.
2 nd Oxford-Princeton High Power Target Workshop Nov. 6-7, 2008 Extrap. 0.3 Mw targ. to 2Mw Jim Hylen / FNAL Page 1 Extrapolating NuMI 0.3 MW targeting.
Overview of ERL R&D Towards Coherent X-ray Source, March 6, 2012 CLASSE Cornell University CHESS & ERL 1 Cornell Laboratory for Accelerator-based ScienceS.
Introduction to Plasma-Surface Interactions Lecture 6 Divertors.
Beam direction and flux measured by MUMON K. Matsuoka (Kyoto) for the MUMON group Contents: 1.Beam stability (direction/flux) 2.Absolute  beam flux.
Neutrinos from Stored Muons STORM Target Station Conceptual Design 15-April-2013 Kris Anderson Fermilab/Accelerator Division/Mechanical Support Department.
The Current T2K Beam Window Design and Upgrade Potential Oxford-Princeton Targetry Workshop Princeton, Nov 2008 Matt Rooney.
ISS, 23 September 2005E. Gschwendtner, CERN1 Beam Instrumentation at CNGS 1. Introduction 2. Layout 3. Beam Instrumentation 4. Summary.
MARS15 Simulations of the MERIT Mercury Target Experiment Fermilab March 18, Neutrino Factory and Muon Collider Collaboration meeting Sergei.
Target & Capture for PRISM Koji Yoshimura On behalf of PRISM Target Group Institute of Particle and Nuclear Science High Energy Accelerator Research Organization.
How to Build a Neutrino Oscillations Detector - Why MINOS is like it is! Alfons Weber March 2005.
May 17-19, 2000 Catalina Island, CA Neutrino Factory and Muon Collider Collaboration Meeting 1 Target Support Facility for a Solid Target Neutrino Production.
2015/6/23 1 How to Extrapolate a Neutrino Spectrum to a Far Detector Alfons Weber (Oxford/RAL) NF International Scoping Study, RAL 27 th April 2006.
The JPARC Neutrino Target
Neutrino Study Group Dec 21, 2001 Brookhaven Neutrino Super-BeamStephen Kahn Page 1 Horn and Solenoid Capture Systems for a BNL Neutrino Superbeam Steve.
Solid Target Options NuFACT’00 S. Childress Solid Target Options The choice of a primary beam target for the neutrino factory, with beam power of
FETS-HIPSTER (Front End Test Stand – High Intensity Proton Source for Testing Effects of Radiation) Proposal for a new high-intensity proton irradiation.
JHF2K neutrino beam line A. K. Ichikawa KEK 2002/7/2 Overview Primary Proton beamline Target Decay Volume Strategy to change peak energy.
Proton Accelerators for Science and Innovation Workshop at Fermilab
NuMI Horn Construction and Testing
KT McDonald MAP Spring Meeting May 30, Target System Concept for a Muon Collider/Neutrino Factory K.T. McDonald Princeton University (May 28, 2014)
Fermilab Neutrino Beamline to DUSEL Mike Martens Fermilab PAC November 3, 2009.
NuMI Run II meeting Nov. 4, 2004 NuMI Target Hall Jim Hylen Page 1 NuMI Target Hall Status / Plan 8 slide introduction to target hall 9 slide list of status.
Design of electrostatic septum for slow extraction from J-PARC main ring 2005, March 2nd ICFA septa workshop 2005 Acc. Lab., KEK M. Tomizawa, Y. Arakaki,
Ff f f f “Conventional” neutrino beams: Target requirements Phil Adamson 13 th January 2012.
November 16, 2001 C. Newsom BTeV Pixel Modeling, Prototyping and Testing C. Newsom University of Iowa.
Monte Carlo Comparison of RPCs and Liquid Scintillator R. Ray 5/14/04  RPCs with 1-dimensional readout (generated by RR) and liquid scintillator with.
Debbie Harris Sacha Kopp, Commissioning Workshop 1    Beam Monitoring Hadmon will see remnant protons Muon Monitors see whatever escapes beam.
NuMI NBI2006 September 6, 2006 NuMI Target Experience Jim Hylen / FNAL Page 1 Experience with the NuMI Target Max. Proton/spill Max. Beam Power Integrated.
NuMI 2 nd High Power Targetry Workshop October 2005 NuMI Target Status and Future Pat Hurh Page 1 NuMI Target Status and Design Study for Proton Driver.
Status of the NO ν A Near Detector Prototype Timothy Kutnink Iowa State University For the NOvA Collaboration.
Synchrotron radiation at eRHIC Yichao Jing, Oleg Chubar, Vladimir N. Litvinenko.
NuMI NuMI Target Hall Air System Review Introduction July 30, 2003 Jim Hylen / FNAL Page 1 NuMI Target Hall Air System Review Introduction Air system for.
NuMI NBI03 November 7-11, 2003 FNAL thin beam windows Jim Hylen / FNAL Page 1 FNAL experience with thin beam windows Issue is: Survival of window in high.
BNL E951 BEAM WINDOW EXPERIENCE Nicholas Simos, PhD, PE Neutrino Working Group Brookhaven National Laboratory.
120 GeV Targeting Neutrino beams utilizing 120 GeV protons from Project X Main Injector Jim Hylen Fermilab AAC meeting August 8, 2007 With thanks to Patrick.
O AK R IDGE N ATIONAL L ABORATORY U. S. D EPARTMENT OF E NERGY 1 GRAPHITE SUBLIMATION TESTS with Inert Gas Mitigation C. C. Tsai, T. A. Gabriel, J. R.
Overlap of Project X and Beamline to DUSEL June 2, 2008.
F NuMI Beamline Accelerator Advisory Committee Presentation May 10, 2006 Mike Martens Fermilab Beams Division.
UKNF 12 January 2005 Target Studies J R J Bennett RAL.
The CNGS Target Station By L.Bruno, S.Péraire, P.Sala SL/BT Targets & Dumps Section.
MARS15 RESULTS FOR THE LBNE-BLIP IRRADIATION TEST LBNE-BLIP Irradiation Test Meeting Fermilab February 19, 2010 Nikolai Mokhov FermilabAccelerator Physics.
J-PARC neutrino experiment Target Specification Graphite or Carbon-Carbon composite cylindrical bar : length 900mm, diameter 25~30mm The bar may be divided.
NuMI NBI2003 November 7-11, 2003 NuMI Target Jim Hylen / FNAL Page 1 NuMI Target Status, Testing, Support Module At NBI’02: Beam test results of Medium.
Parameters of the NF Target Proton Beam pulsed10-50 Hz pulse length1-2  s energy 2-30 GeV average power ~4 MW Target (not a stopping target) mean power.
NuMI Horn Alignment Cross-hair System NuMI Horn Alignment Cross-hairs Target Hall Instrumentation Review November 18, 2002 David Ayres Argonne National.
NUMI Flexible Joint/Floating Clamp WBS Power Supply System Level 3 Manager Nancy Grossman FNAL July 10, 2001.
ATLAS LAr Forward Calorimeters C. Zeitnitz (Universität Wuppertal) for the ATLAS LAr Community.
Present status of production target and Room design Takashi Hashimoto, IBS/RISP 2015, February.
Target Proposal Feb. 15, 2000 S. Childress Target Proposal Considerations: –For low z target, much less power is deposited in the target for the same pion.
Design for a 2 MW graphite target for a neutrino beam Jim Hylen Accelerator Physics and Technology Workshop for Project X November 12-13, 2007.
Beamline for the LBNE Project Heidi Schellman for the LBNE collaboration.
LBNE 2.4MW Absorber NBI 2014 Presented by Brian Hartsell Contributions by: Kris Anderson, Yury Eidelman, Jim Hylen, Nikolai Mokhov, Igor Rakhno, Salman.
Bob Zwaska IHEP - LBNF Beamline Meeting: Hadron Monitor 27 June 2016 NuMI Hadron Monitor.
KT McDonald MAP Spring Meeting May 30, Target System Concept for a Muon Collider/Neutrino Factory K.T. McDonald Princeton University (May 28, 2014)
Irradiated T2K Ti alloy materials test plans
Target and Horn status report
Development of the muon monitor for the T2K experiment
M. Calviani, A. Ferrari (EN/STI), P. Sala (INFN)
Conventional Neutrino Beams Day 2
Target R&D for JHF neutrino
Parameters of the NF Target
Beam Tests of Ionization Chambers for the NuMI Neutrino Beam Monitoring System MINOS.
Review of Quench Limits
Presentation transcript:

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 1 NuMI Target: Today and Tomorrow Outline: NuMI Beam Parameters Design Constraints Thermal and Stress Analysis Instrumentation Radiation Damage Target Tests Upgrade to 1.6 MW(+)

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 2 Beam Parameters and Upgrade Path NuMI beam design parameters: 0.4 MW beam power 120 GeV/c proton beam 4x10 13 protons per 8.6  sec beam spill 1.87 sec repetition rate 1 mm RMS circular beam spot size Upgrade path considered to 1.6 MW (+) design: 120 GeV/c proton beam Double number of protons per spill Double repetition rate (higher repetition rate easier to handle than instantaneous)

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 3 NuMI target IHEP Protvino design team V.Garkusha, V.Zarucheisky F.Novoskoltsev, S.Filippov, A.Ryabov, P.Galkin, V.Gres, V.Gurov, V.Lapygin, A.Shalunov, A.Abramov, N.Galyaev, A.Kharlamov, E.Lomakin, V.Zapolsky FNAL design team J.Hylen, K.Anderson FNAL beam test J.Morgan, H.Le, Alex Kulik, P. Lucas, G. Koizumi Energy deposition calculations done with MARS Target construction done at IHEP

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 4 How beam is produced

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 5 Different spectra obtained by moving target and 2 nd horn MINOS on-axis:-> Target in horn (L.E. configuration)

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 6  spectra moving off-axis ( unoscillated, GEANT M.C. ) Off-axis detector experiment probably prefers M.E. configuration (target outside horn)

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 7 NuMI target types Low Energy Target must fit in horn Medium Energy Target has more space for cooling, target outer vessel gets less beam

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 8 Low Energy Target will be used for MINOS Graphite Fin Core 2 int. len. Water cooling tube also provides mechanical support Aluminum vacuum tube

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 9 NuMI Prototype Target M.E. style section used in beam test Ignore instrumentation on ends Target fins Beam direction Water cooled pressing plate Space between fins prevents buildup of dynamic stress along beam direction

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 10 Neutrino targets should be long, narrow, low density (less true for L.E. : larger angle + less horn depth of field) proton ++ (P  ~ 3 – 30 GeV/c for useful pions) Target Narrow target lets  escape out sides but Small p-beam spot size -> high stress  peak = 0.1 to 0.01 (P t ~ 0.3 GeV/c peak production) L escape R target Example: For R target = 3 mm => L escape = 3 cm to 30 cm compared to 48 cm int. len. for graphite NuMI full width of fin: 6.4 mm (L.E.) / 3.2 mm (M.E.)

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 11 Target – Low Energy Version (Low Energy refers to neutrino spectrum, not beam power) Narrow – location checked by scanning beam across edge. Sense by: (i) charge (delta-rays) knocked out (wire connected to target) (called Budal) (ii) scattered beam into cross hairs ionization chamber (BLM) Casing of target fin electrically insulated from base. Wire strung from case to top of module. When moving, can sense if case touches horn by short to “ground”.

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 12 Target Temperature - lots of headroom Instantaneous temperature - room for large factor increase, far from even sublimation (~2000 C) Heat easily conducts to water line, many times average load no problem Would want to increase diameter of water line to allow for more flow so L.E. target does not warp

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 13 Target dynamic stress? (Approximately linear with instantaneous protons) Current safety factor of 3.8 at fin center – can increase with: larger spot size different graphite (next slide) Current safety factor of 2.2 at curved edge of fin – can increase with: different graphite (next slide) thicker fin (at some cost in ) Our target concept evolves reasonably well to double the instantaneous proton rate

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 14 Target Material - Graphite (Higher A would give more pi for low energy beam, but energy density becomes problematic) Graphite R7650 has figure-of-merit K = 0.66, presumably improves safety factor by x 1.4 over NuMI ZXF-5Q Carbon-fiber/carbon-matrix composite materials may be even better From L.Bruno, CERN

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 15 Budal for L.E. target In current design, downstream end of aluminum vacuum tube reaches 190 deg C - it is insulated from water cooling to allow Budal monitor to work. For higher beam power, must connect this tube to water cooling – probably giving up Budal (alternative – make casing from Be?) Budal could be retained in M.E. target

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 16 Radiation Damage Most radiation damage info is from reactor neutrons In this example, graphite self- destructs at ~ 2x10 20 n/mm 2 Highest radiation density in NuMI target is proton spot near entrance ~ 0.5x10 20 p/mm 2 / year NuMI target test accumulated 0.023x10 20 p/mm 2 with no visible damage Target longevity uncertain – will gain experience in 2005 Radiation Damage and Life-time Evaluation of RBMK Graphite Stack, XA , P.A.Platonov, O.K.Chugunov, V.N.Manevsky, V.I.Karpukhin, Russian Research Center Kurchatov Institute

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 17 Any fall-backs in case of rapid radiation damage ? Factor of a few: Drive motors Shielding Module Target Carrier 1)Increase spot size along fin (current L.E. could increase both directions) 2) In case of M.E. style, periodically move fin to get fresh material Modest loss in efficiency further from top of fin Target module already has capability to do this

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 18 Target Test Conditions Goals: High stress pulses cause visible damage? Radiation cause visible damage? Budal monitor work for beam alignment? Graphite vs Beryllium PROPOSAL Prototype thinner fin, smaller spot to obtain similar stress, temperature Highest stress pulses in test protons 0.21 mm x 0.16 mm calculated to be at non-fatigue stress limit -- no visible damage under microscope ! target test used: 7x10 17 protons 3x10 5 pulses mostly 0.2x10 13 ppp 0.2 to 0.3 mm RMS

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 19 Target Budal Monitor in test beam 1)Electrically insulate target 2)Scan beam across target 3)Delta rays knocked out induce target voltage 4)Electronic readout of target = Budal Monitor Highest signal is at edges of target Better signal-to-noise for target-in-vacuum than target-in-He In Helium, insulator coated (silicon nitride) graphite gets less background than bare graphite Can locate target to ~ 0.1 mm 1.8 mm target V Budal

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 20 Target Upgrade summary New target, but water-cooled graphite probably OK if radiation damage lifetime OK

NuMI High-power Targetry fpr Future Accelerators Workshop September 8-12, 2003 NuMI Target: Today and Tomorrow Jim Hylen, Nikolai Mokhov / FNAL Page 21 Conclusion NuMI–style target with modifications look good for 1.6 MW (or even higher) beam with caveat that radiation damage lifetime not known Modifications: Probably choose different grade of graphite Increase water cooling tube diameter M.E. style target is more robust – good for off-axis Cool (or change material) of outer can for L.E. style target