Proton Source Workshop Booster Current Beam Operation Tuesday

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Proton Source Workshop Booster Current Beam Operation Tuesday, December 7, 2010 T. Sullivan

Proton Source Workshop Booster Current Beam Operation Tuesday, December 7, 2010 T. Sullivan

Current HEP Operations Normal HEP Time Line • Running 23 cycle for MI •

Current HEP Operations Normal HEP Time Line • Running 23 cycle for MI • 2 Pbar events + 9 Numi events + 3 -4 Mini. Boo. NE events • Booster rep rate is 7 Hz, this includes two initial non-beam cycles to pulse power supplies prior to the beam cycle(s) • Extracted beam intensity per cycle Pbar - 4. 5 E 12 (11 T) Numi - 4. 2 E 12 (10 T) MB - 5. 0 E 12 (12 T) • Beam efficiencies are normally 90%

Typical $23 Injection Cycle into Main Injector and Mini. Boo. NE $1 D $14

Typical $23 Injection Cycle into Main Injector and Mini. Boo. NE $1 D $14 $19

Booster Normalized Losses

Booster Normalized Losses

Booster Radiation Survey

Booster Radiation Survey

Allocation of Protons Delivered in 2010

Allocation of Protons Delivered in 2010

Numi - Total Protons

Numi - Total Protons

Mini. Boo. NE Protons on Target

Mini. Boo. NE Protons on Target

Booster Integrated Proton Delivery 1994 -2010 Booster Total Integrated Beam 7. 00 E+20 3.

Booster Integrated Proton Delivery 1994 -2010 Booster Total Integrated Beam 7. 00 E+20 3. 50 E+21 6. 00 E+20 3. 00 E+21 5. 00 E+20 2. 50 E+21 4. 00 E+20 2. 00 E+21 3. 00 E+20 1. 50 E+21 2. 00 E+20 1. 00 E+21 1. 00 E+20 5. 00 E+20 0. 00 E+00 1994 1996 1998 2000 2002 Year 2004 2006 2008 2010 Integrated Protons Yearly Protons

Booster Charge Comparison – 2000 to 2010 Higher Throughput and Higher Efficiency 2000 2010

Booster Charge Comparison – 2000 to 2010 Higher Throughput and Higher Efficiency 2000 2010 12 T

Radiation Concerns • Radiation damage to tunnel components • Cables, hoses, HV insulators, vacuum

Radiation Concerns • Radiation damage to tunnel components • Cables, hoses, HV insulators, vacuum seals become brittle • Replacing components more frequently • Increased above ground activation - shielding • Long 6 location above ground, west towers • Additional shielding required or move people • Additional exposure to workers • One hour cool down time before Booster accesses • Repairing tunnel components exposes technicians to increased radiation doses • ALARA planning for any type of repair > 100 mrem

Annual Radiation Exposure for Proton Source Department 1998 -2009 Proton Source Department Annual Radiation

Annual Radiation Exposure for Proton Source Department 1998 -2009 Proton Source Department Annual Radiation Exposure 1998 -2009 3000 2710 2470 Total Dose Equivalent mrem 2500 2000 Total Dose 1520 1500 1290 1020 1000 1070 1220 790 500 220 310 430 580 0 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 Year

Booster Limitations - Shielding • • Booster beam ~1. 00 E 17 protons/hour (pph)

Booster Limitations - Shielding • • Booster beam ~1. 00 E 17 protons/hour (pph) MCR warning limit 1. 09 E 17 pph Operational limit 1. 22 E 17 pph Beam permit 1. 35 E 17 pph • • 8 Ge. V beam to Main Injector ~6. 70 E 16 pph MCR warning limit 7. 91 E 16 pph Operational limit 8. 6 E 16 pph Beam permit 9. 6 E 16 pph

Beam Budget Monitor

Beam Budget Monitor

Aging Components + Radiation + Increased Rep Rate = Reduced Lifetime + Increased Downtime

Aging Components + Radiation + Increased Rep Rate = Reduced Lifetime + Increased Downtime • BRF cavities, tuners, and power supplies are 40 years old • Experiencing more cavity and tuner failures • In some cases the cavity must be removed from the tunnel and repaired with limited spare parts • Repairing this equipment often requires a written ALARA procedure, and supervision of a rad tech • Current Booster rep rate is limited to 7 Hz • Gradient magnets with limited spares, interlock cables, water hoses, vacuum seals, all of which are affected by radiation

Additional Concerns Beam Loss, Instabilities, and Beam Quality Damper system helps reduce beam instabilities

Additional Concerns Beam Loss, Instabilities, and Beam Quality Damper system helps reduce beam instabilities Notching systems reduce extraction losses Collimators help remove halo at injection Newer correctors help us tune up the ramp at higher currents for better beam control • Daily tuning in MCR to maintain in beam quality • • • MB, Numi, Collider, and Pbar production • The bottom line is better beam efficiency means lower losses

Summary • Booster is running well with 90% or better efficiency. If this running

Summary • Booster is running well with 90% or better efficiency. If this running continues we should reach 6. 0 E 20 protons for the calendar year! • A record year that included a six week shutdown! • Limitations that still need to be addressed for a long term future: • Booster RF cavities and power supply reliability • Radiation shielding improvements • Tunnel activation of components • Aging of Booster components

End Slide Show

End Slide Show

Spare Slides

Spare Slides

Repairs to Booster Components Requiring ALARA • • 04/08 03/09 01/10 06/10 Replace MP

Repairs to Booster Components Requiring ALARA • • 04/08 03/09 01/10 06/10 Replace MP 02 - 918 mrem Period 6 vacuum leak - 233 mrem BRF 19 vacuum repair - 170. 5 mrem BRF 3 vacuum repair - 362 mrem

Major BRF Repairs • • • 12/19/09 – BRF 19 vacuum leak, ceramic 06/08/10

Major BRF Repairs • • • 12/19/09 – BRF 19 vacuum leak, ceramic 06/08/10 – BRF 3 vacuum leak, ceramic 08/01/10 – BRF 1 rear tuner water leak 08/01/10 – BRF 18 rear tuner water leak 08/01/10 – BRF 15 front tuner water leak 08/18/10 – BRF 5 sparking tuner replaced

Booster 95 LCW Make-up January – July, 2010

Booster 95 LCW Make-up January – July, 2010

BBM Toroid Reference List

BBM Toroid Reference List