Booster Beam Notching Installation UpdatePIP Talk

Salah ChaurizeFebruary 20, 2013

Notching Pre-Shutdown– A 3 bucket gap is created using two kickers located at Long 5

and Long 12• Notcher – A High Voltage(55kV) Kicker at Long 5• Noker - Lower Voltage Kicker (20-40 kV) at Long 12– Used to clean out remnant Notched Beam in bucketsAt 700 MeV

– Beam is kicked vertically into collimator region at Long 6 and Long 13 with upstream gradient magnets seeing some deposited notched beam loss.

– The notch timing and synchronization is accomplished by modules in the Booster LLRF Room and local timing modules.

– Beam notch for non-cogged cycles occurs at 400 Mev– Cogged notch occurs close to 700 MeV

Notching Post Shutdown– A 3 bucket gap is created using three 1M Long kickers located

at Long 12• 3 Notchers – High Voltage(46kV) Kicker at Long 12• Notcher converted to NOKA• Noker converted to NOKB• Build/Commission new NOKC.

– Beam is kicked Horizontally into new absorber at Long 13 – The notch timing and synchronization is accomplished by

modules in Booster LLRF Room. (Same as before)– Extra Wide Aperture BPM and Short Corrector Spool needed.– Beam notch for non-cogged cycles occurs at 400 Mev. (Same

as before)– Cogged notch occurs close to 700 MeV. (Same as before)

The Notch3 Bucket Notch Width

non-cogged Cycle Notch @ 400MeV Cogged Cycle

Notch @ ~700MeV

Extraction Loss

L5 Notcher Current LocationNotcher magnet will be moved to L12

Vertical Pinger magnet will be removed from L12 and put here in its place

Notcher Hor. Pinger

L5 NotcherPower supply components such as these

Will need to be moved to support Long 12 region

CX1168 tube Low Level equipment

CX1168 tube cabinet

L12 Pre-shutdown

De-commissioned Horz. Pinger

Ver. PingerNokerMKS04

Beam direction

L12 Post Shutdown

NOKC MKS04NOKBNOKA

Kicker magnets rotated to kick Horizontally

Kicker magnets rotated to kick Horizontally

Kicker MagnetBeam tubes exposed

for alignment

L12 Noker & Extraction Kicker MKS04Power supply components such as these

will need to be installed/relocated to support notch2 & notch3in east Booster Gallery

CX1168 tube cabinet

Beam sync Modules

and other NIM crateSupport modules.

Make Room For 2 more systemsIn East Gallery

Current ConfigurationIn East Gallery

NOKA

NOKB

NOKC goes Here

Current ConfigurationIn East Gallery

Noker PS Charging Resistors and load resistors

Current Configuration In East Gallery

NIM Gate Modules Altera Based

CAMAC Controls and Ramp Cards

LeCroy Delay modules & CAMAC Trigger

Current Configuration In East GalleryAbsorber Motion Controls

Current ConfigurationIn East Gallery

NOKA

NOKB

NOKC

MKS04

Long 13

Beam direction

Before

After

Standing at downstream end of absorber

Long 13 Notched beam absorber

Beam direction

Before

After

Long 13 New absorber

Looking upstream towards L13

30”30”

75” 10 ‘

Before After

Reason to redesign S12 Spool piece

• Need to kick beam horizontally at L12 with beam Nokers to create a notch in the beam.

• Current aperture restriction at S12 is BPM plates and upstream and down stream bellows which are all 4.5in.

Reason to redesign S12 Spool piece

• New Extra Wide aperture BPM will give us 5 in aperture with new spool.

• New spool would use some of original spool design without the standard BPM components inside and larger aperture bellows at magnet spool flanges

Extra Wide Aperture BPM

Extra Wide Aperture BPM

S12 CorrectorOriginal Standard aperture 4.5 Inch

S12 CorrectorNew 5” Aperture Spool

Preliminary Results and Commissioning

– Using 2 Nokers to create gap in beam at 400MeV– S12 New BPM giving data but needs some gain tweaks– Absorber motion controls working well.– Notched beam loss is currently low due to low intensity

running but is as expected.

Preliminary Results and Commissioning

Preliminary Results and Commissioning

Preliminary Results and Commissioning

NOKA(CH1) & NOKB(CH2) Notched Bunches

Thanks to:-L13 Notched Beam Absorber Assembly-

PPD Experiment Fabrication- L13 Absorber Build and AssemblyD.Erickson, J. Judd, W. Blaszynski, W. GatfieldV. Sidorov - L13 Absorber Mechanical Design

APC Energy Deposition Simulations by- N.Mokhov, I. Tropin, S.Drozhdin M. Coburn L13 Absorber Motion Controls

-L12, S12, L13 Upgrade Support-Mechanical Support/ Instrumentation Groups – L13/S12 BPM and Corrector

R. Reily, B. Ogert, J. Kubinski, J. Briney ,D. Wallace, J. FitzgeraldControls Group CAMAC modules

Booster Techs - Power supply and load reconfiguration New timing module build and support electronics R. Mraz, T. Boes, D. Dick

Operations - Database work , O. Marshall, R. JonesAMG-L12, S12,L13 alignment

Radiation Safety – Joel FulghamConsultation – J. Lackey, B. Pellico

Machine Shop, Welding ShopMany More I missed