SY120/MTest Beam Upgrades

Rick ColemanAEM

10 March, 2008

Switchyard 120 Project

Switchyard 120 project

Phase I low intensity beams to Meson- Completed 2002-connection to Main Injector & 800 GeV SY- replace cryo. left bends encl C with conventional magnets

Phase II clean transmission for High Intensity - Not Done-add quads F2, F3 manholes-move electrostatic septa from F1 encl. to M01 enclosure-rework M01 3-way split -rework (eliminate) “Meson Train” target box/collimators

Meson Test Beam FacilityMovable upstream 25 cm Al target Movable downstream 30cm target location

Mtest secondary beamline

MTest Beam Layout and Modes

Proton Mode: 120 GeV protons

transmitted through upstream target

Proton Mode: 120 GeV protons

transmitted through upstream target

Pion Mode: 8-66 GeV beam tuned for

secondaries from upstream target

Pion Mode: 8-66 GeV beam tuned for

secondaries from upstream target

Low Energy Pion Mode: 1-32 GeV beam tuned for

secondaries from downstream target

Feb 2007

Low Energy Pion Mode: 1-32 GeV beam tuned for

secondaries from downstream target

Feb 2007

Adding a quad doublet to Switchyard F3 Manhole

F3 Manhole Quad Installation

F3 Manhole Quad Installed

Special Thanks to:

AD/Mech (Mike Petkus, Chris Ader, Willie Stitts, Paul Gentry, Cliff

Foster, John Featherstone, Bob Albrecht, Bob Slazyk), AD/EE (Julius Lentz, Bryan Falconer )

PPD/Alignment, PPD/Mechanical Installation

Improvement with new F3 quads

BeforeMT4/F1 ~40%

AfterMT4/F1 ~80%

More Spill Options

Currently operating with a 4 second long slow spill once per minute (6 sec. total, 12 hours/day or 5%)

We have in the past changed from 4 sec to 1 sec,but done manually it required a handful of expertsone or more shifts

• 4 sec or 1 sec Slow spill length change automated-Operations changes event type and few parameters (Denton Morris, Dave Capista, Wally Kissel, Paul Allcorn, Peter Prieto, Charlie Briegel, Chuck Brown)

•“Pings” 2ms width slow resonant, ~5 pings per pulse

Changes to Main Injector QXR for Pings

1. Added an external 150V 15A Power supply for Pings.2. Switch added in QXR Regulator so it can add Ping current on

during spill.3. Controls hardware added so Ping events ($33) through TCLK. Up

to 8 events per spill.4. MI-30 test that QXR can extracts beam with a 1 sec cycle and a 4

sec cycle and Pings can be generated during either one.

Peter Prieto

50 amps witha 2ms duration

Need to test QXR driver software and then ready for beam test.

MILESTONE: SWITCHYARD OPERATES REFRIGERATORL-R, R. Andrews, J. McCarthy, J. Appel discuss expansion engine operation June 1978

Backup Slides

MTest

Switchyard

P3

SY120 = P3 -> Switchyard -> MTest

SY120 Beam Line

MTest Detectors

PWCTOF CerenkovSwic

Beam Energy (GeV)

Rate at Entrance to Facility (per spill)

Rate at Exit of Facility (per spill)

%Pions, Muons**

% Electrons**

16 132,000 95,000 82% 18%

8 89,000 65,000 42% 58%

4 82,000 51,000 26% 72%

2 88,000 38,000 34% 65%

1 79,000 23,000 <50% >50%

Beam Energy (GeV)

Rate at Entrance to Facility (per spill)

Rate at Exit of Facility (per spill)

%Pions, Muons**

% Electrons**

16 86,000 59,000 100% 0%

8 31,000 18,000 95% 5%

4 5,400 1,300 73% 16%

2 6,000 480 51% 42%

1 5,000 120 ~60% ~40%

Rates* without lead scatterer

Rates* with lead scatterer

*Rates here are normalized to 1E11 at MW1SEM

**Measured at exit of facility with PbG calorimeter

Peter Prieto in front of pulsing circuit for QXR

QXR quadrupole in Main Injector

Fast pulse performance in Tevatron - 1997

Many thanks to Accelerator Division for their efforts

QXR MVME 2400Processor andCAMAC_Serial

Link DriverMI 60

5760 Link MI60 to MI30

QXR SLOW Extraction

Power Supply30V 65A

CAMAC181

DAC 119

DAC 119

Ping Program

QXR Program

Status

IBEAM DIGITIZED

EnCODED ONMDAT

DCCT MI 30I Beam

MI30Air Core Quad

Q304

MI30Air Core Quad

Q302

10mOhm Shunt

30V 50A

150V

17uF

Crowbar

FET BANK

50uH

GTO

GTO DriverCircuit