Difference between revisions of "Target WP1"

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(Existing Targets)
(Future Targets)
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| LANSCE - Mat Test || 0.8 || 6.7 (120) || 2400 (20) || LBE || || || || 12<sup>[2]</sup> || p || 0.8 || 1000 || ||  
 
| LANSCE - Mat Test || 0.8 || 6.7 (120) || 2400 (20) || LBE || || || || 12<sup>[2]</sup> || p || 0.8 || 1000 || ||  
 
|-
 
|-
| Mu2e<sup>[6]</sup> || 8 kW || 0.01 J/pulse (0.6 MHz) || 660 (peak) || W/Ir || Radiation || Be? || 1500 (steady state) ||  || p || 8 ||  ||  ||  
+
| Mu2e<sup>[6]</sup> || 0.008 || 0.01 J/pulse (0.6 MHz) || 660 (peak) || W/Ir || Radiation || Be? || 1500 (steady state) ||  || p || 8 ||  ||  ||  
 
|-
 
|-
| Myrrha<sup>[6]</sup> || 2.4 MW || 0 || 0 || Pb-Bi eutectic || Pb-Bi || Undecided ||  ||  || p || 0.6 ||  ||  ||  
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| Myrrha<sup>[6]</sup> || 2.4 || 0 || 0 || Pb-Bi eutectic || Pb-Bi || Undecided ||  ||  || p || 0.6 ||  ||  ||  
 
|-
 
|-
| FAFNIR<sup>[6]</sup> || 1 MW || 0 || 0 || C (rotating) || Radiation ||  ||  ||  || d || 0.04 ||  ||  ||  
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| FAFNIR<sup>[6]</sup> || 1 || 0 || 0 || C (rotating) || Radiation ||  ||  ||  || d || 0.04 ||  ||  ||  
 
|-
 
|-
| Kyoto - BNCT<sup>[6]</sup> || 30 kW || 0 || ~100 (ave) || Be || H2O || None ||  || 0 || p || 0.01 || 0 || 2013 ||  
+
| Kyoto - BNCT<sup>[6]</sup> || 0.03 || 0 || ~100 (ave) || Be || H<sub>2</sub>O || None ||  || 0 || p || 0.01 || 0 || 2013 ||  
 
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Revision as of 10:45, 23 May 2013

This PASI targets work package concerns high-power-density solid target development and operation, including material studies and target monitoring systems. It is coordinated by David Jenkins.

Existing Targets

Milestone 1.1 requires a review of existing (or previously constructed or under-construction) high power targets, whether for neutron spallation or otherwise.

NB:

  • 0 in columns for pulses indicates CW operation.
  • X (@Y) power indicates that X is the design power but has only achieved Y megawatts in operation so far.
  • Powers in Watts are time-averaged; energies in Joules are for an individual pulse. The kJ/pulse column shows beam energy, whereas the volumetric (W/cm3, J/cm3) shows the heat deposited in the target at the most intense point.
  • Temperatures are the max and min attained by the target material during operation. Rise per pulse is the highest ΔT found anywhere in the target.
Facility Power: MW avg. kJ/pulse (rep. rate, Hz) W/cm3 (J/cm3) Material: Target Coolant Window Temperature: Max (Min), °C Rise in pulse, K Beam: Species Energy, GeV Pulse length, <math>\mu</math>s Operation: year(s) beam on target Target lifetime
J-PARC - Current Hadron Target[5] 0.075 3.5 (0.167) 200 (1240) Pt(Au)-rod, Cu-base H2O Be 872 (avg. 407) 710 p 30 2000000 2012
J-PARC - T2K[5] 0.75 2500 (0.3) 83 (300) C He Ti-6Al-4V 800 (30) 196[4] p 30 5 2009 5 years
MiniBooNE[7] 0.032 6.4 (5) 120 (24) Be Air Be 7[4] p 8 1.6 2002 5+ years
NuMI[7] 0.4 750 (0.53) 320 (600) C H2O Be 391[4] p 120 8.6 2004 1 year
ANU/NOvA[7] 0.7 933 (0.75) 450 (600) C H2O Be 391[4] p 120 10 2012 0.5 year
FNAL Pbar[7] 0.052 104 (0.5) 7650 (15300) Inconel Air Be 4287[4] p 120 1.6 1986 0.5 year
PSI SINQ/Solid Target[6] 0.97 0 800 Pb/Zr D2O AlMg3 (D2O cooled) 500 (30) 0 p 0.59 0 1997 2 years
PSI SINQ/MEGAPIE[6] 0.97 0 1000 LBE LBE SS T91 (D2O cooled) 340 (230) 0 p 0.59 0 2006 (only) 1 year
PSI UCN[6] 0.014 (1.42 peak) 10400 (0.00125) 500 Pb/Zr D2O AlMg3 (D2O cooled) 500 (30) 470 p 0.59 2000000–8000000 2011 >20 years
SNS[2] 1.4 (@1.0) 23 (60) 750 (13) Hg (in stainless steel) Hg Inconel-718 (Aluminum-6061 next change-out) 200 (60) 7[4] p 1 0.7 2006 5000MW.hrs design (10DPA), 3250 so far
ISIS TS1[3] 0.2 (@0.16) 4 (50) 1000 (25) W (Ta clad) D2O Inconel-718 (water cooled) 250 (30) 10[4] p 0.8 0.1 (x2, spaced by 0.3) 1985 ~5 years
ISIS TS2[3] 0.05 (@0.04) 1 (50) 1000 (100) W (Ta clad) H2O Al alloy 5083-0 (passive He cooled) 400 (36) 39[4] p 0.8 0.1 (x2, spaced by 0.3) 2008 ~5 years
LANSCE - Lujan 0.1 5 (20) 350 (18) W 7[4] p 0.8 0.25
LANSCE - UCN  ?  ? (20) 350 (18) W 7[4] p 0.8 0.25
LANSCE - IPF 0.1 5 (20) 350 (18) Various p 0.1? 0.25
CNGS[1] 0.51 1538 (2/6s, 50ms apart)  ? C p 400 10.5 2007
Birmingham - BNCT Target[8] 0.0045 (now); 0.01 (future) 0 140000 Li with Cu backing D2O None ~140 0 p 0.0028 0 1980s onward ~5 years

Sources

Original whole table: John Haines (SNS), updated by Patrick Hurh (FNAL), arrived at Stephen Brooks (RAL) via ISIS.

  1. http://www.hep.princeton.edu/mumu/target/Ilias/ilias_101909.pdf slide 4
  2. E-mail from Bernie Riemer, Van Greaves (ORNL). 200°C is maximum mercury hot-spot temperature, 60°C is worst-case inlet temperature.
  3. David Jenkins (ISIS, RAL)
  4. Rough calculations by Stephen Brooks using the J/cm3 column and densities and specific heats of materials from the web at room temperature. Should be replaced by more accurate values if possible.
  5. E-mail from Hideaki Hotchi (J-PARC).
  6. E-mail from Bertrand Blau (PSI).
  7. Updated spreadsheet from Patrick Hurh (FNAL).
  8. Spreadsheet from Rob Edgecock (RAL/Huddersfield).

Future Targets

Milestones 1.2 and 1.3 require knowledge of the requirements for future high power target projects and candidate target materials.

Facility Power: MW avg. kJ/pulse (rep. rate) W/cm3 (J/cm3) Material: Target Coolant Window Temperature: Max (Min), °C Rise in pulse, K Beam: Species Energy, GeV Pulse length, <math>\mu</math>s Operation: expected beam on target Expected lifetime
ESS Lund[3] 5 357 (14) 5200 (371) W He  ? 500 137 p 2.5 2860 2019
EURISOL 4 80 (50) 100000 (2000) Hg 1059[2] p 2.2 3
IFMIF 10 0 100000 Li(l) 0 d 0.04 0
J-PARC - Future Hadron Target[4] 0.75 32 (0.292) 140 (98) rotating Ni disk H2O Be 78.6 (47.9) 30.7 p 50 700000
J-PARC - T2K Upgrade 4 13333 (0.3)  ? (?) C p 50 5
Project X - Kaon[5] 1+ 0  ? C 0 p 3 0 2024 2 years
Project X - Muon[5] 1+ 0  ? C 0 p 3 0 2024 2 years
Project X - Nuclear[5] 1+ 0  ? High-Z 0 p 1.5-3 0 2020 2 years
Project X - Energy Station[5] 1+ 0  ? LBE? 0 p 1.5-3 0 2020 1 year
LBNE[5] 0.7 1000 (0.7) 178 (254) C H2O Be 166[2] p 120 10 2023 0.5 year
LBNE - Upgrade[5] 2.3 3286 (0.7) 592 (846) C 552[2] p 120 10 2030 0.25 year
FRIB 0.4 0 60000000 C 0 Ions (p to U) 1-48 0
SNS STS long pulse 1.5 75 (20) 39 (57) W/Ta (rotating) or Hg p 1.3 1000
Neutrino Factory[1] 4 27 (50x3) 100000 (750) Hg (jet) Hg 1221[2] (30) 397[2] p 5-15 0.007 (x3 in 240)
Muon Collider[1] 4 270 (15) 100000 (7500) Hg (jet) Hg 4002[2] (30) 3972[2] p 5-15 0.007
LANSCE - Mat Test 0.8 6.7 (120) 2400 (20) LBE 12[2] p 0.8 1000
Mu2e[6] 0.008 0.01 J/pulse (0.6 MHz) 660 (peak) W/Ir Radiation Be? 1500 (steady state) p 8
Myrrha[6] 2.4 0 0 Pb-Bi eutectic Pb-Bi Undecided p 0.6
FAFNIR[6] 1 0 0 C (rotating) Radiation d 0.04
Kyoto - BNCT[6] 0.03 0 ~100 (ave) Be H2O None 0 p 0.01 0 2013

Sources

Original table John Haines (SNS), updated by Patrick Hurh (FNAL), arrived at Stephen Brooks (RAL) via ISIS.

  1. E-mail from Kirk McDonald (Princeton).
  2. Rough calculations by Stephen Brooks using the J/cm3 column and densities and specific heats of materials from the web at room temperature. Should be replaced by more accurate values if possible. Neutrino factory max temperature calculated with the heating from 3 sub-pulses.
  3. Information via Tristan Davenne (high-power targets group, technology divison, RAL)
  4. E-mail from Hideaki Hotchi (J-PARC).
  5. Updated spreadsheet from Patrick Hurh (FNAL).
  6. Spreadsheet from Rob Edgecock (RAL/Huddersfield).

Overlap with RadiATE

The RadiATE (Radiation damage in Accelerator Target Enviroments) project between the UK and US labs overlaps with the PASI targets UK remit. Particularly in milestones 1.5 (assessing target lifetime due to radiation) and 1.6 (radiation damage studies at an existing facility). There is considerable interest in dissecting irradiated targets for material studies.

Meetings

WP1 meetings may be found in the list of PASI Targets meetings.