Collimation for the Fermilab booster to main injector transfer line

Brown, Bruce; Capista, D.; Kourbanis, I.; Mokhov, N.; Sidorov, V.T.

doi:10.1109/pac.2007.4440860

Cited by 5 publications

(7 citation statements)

References 3 publications

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“…The Fermilab Main Injector Project [5] was created to enhance the physics capabilities of the Tevatron collider and to provide beams of 120 GeV protons for test beams and fixed-target particle physics experiments. The initial goal for high intensity operation was 3×10 13 protons per pulse at 120 GeV. Construction of the Main Injector began in June of 1992 with commissioning beginning in September 1998.…”

Section: Introduction To the Main Injectormentioning

confidence: 99%

Fermilab main injector: High intensity operation and beam loss control

Brown

Adamson

Capista

et al. 2013

Phys. Rev. ST Accel. Beams

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From 2005 through 2012, the Fermilab Main Injector provided intense beams of 120 GeV protons to produce neutrino beams and antiprotons. Hardware improvements in conjunction with improved diagnostics allowed the system to reach sustained operation at 400 kW beam power. Transmission was very high except for beam lost at or near the 8 GeV injection energy where 95% beam transmission results in about 1.5 kW of beam loss. By minimizing and localizing loss, residual radiation levels fell while beam power was doubled. Lost beam was directed to either the collimation system or to the beam abort. Critical apertures were increased while improved instrumentation allowed optimal use of available apertures. We will summarize the improvements required to achieve high intensity, the impact of various loss control tools and the status and trends in residual radiation in the Main Injector.

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Section: Introduction To the Main Injectormentioning

confidence: 99%

Fermilab main injector: High intensity operation and beam loss control

Brown

Adamson

Capista

et al. 2013

Phys. Rev. ST Accel. Beams

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“…These have been achieved with about 1% loss at collimators in the MI8 Booster to Recycler transfer line, >97% transmission in the Recycler and >97% transmission in the Main Injector. A gap-clearing kicker system [4] delivers some unwanted beam to the abort while collimators in the MI8 line [5], in the Main Injector [6], and in the Recycler [7] localize most of the remaining losses. Acceleration from 8 GeV to 120 GeV with very low losses is normally achieved..…”

Section: Overviewmentioning

confidence: 99%

“…At the same time, plans for higher intensity using slip stacking [9] assured that a few percent of the injected beam would not be captured into rf buckets for acceleration. A modest collimation system for the MI8 Booster to Main Injector Transfer Line [5] was developed quickly (installed in Spring 2006) while we designed and built a collimation system for the Main Injector [6] which would capture the beam from Main Injector slip stacking which was not accelerated and also define aperture limits to localize transverse losses from either injected beam or emittance growth from any source. This system was installed in Fall 2007 and commissioned in 2008.…”

Section: Overviewmentioning

confidence: 99%

Design Considerations and Operational Features of the Collimators for the Fermilab Main Injector and Recycler [Slides]

Brown

2019

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The Fermilab Main Injector system delivers 700 kW of 120 GeV Proton beam for neutrino experiments. Since 2013 this has been achieved using slip stacking accumulation in the Recycler with up to 12 batches from the Fermilab Booster per Main Injector Ramp Cycle. To control activation from beam loss, collimation systems in the Booster to Recycler transfer line, in the Recycler and in the Main Injector are employed. Residual radiation measurements around the ring with detailed studies at the collimators are required to maintain adequate loss control. We will review design considerations, operational parameters and activation results for more than ten years of operation. Simulations with MARS15 are used to explore the activation rates and the isotopic composition of the resulting activation.

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“…The model extends from Q230 quadrupole up to Q310, i.e. for about 200 meters, and includes all essential elements with detailed description of geometry and materials [5]. The MI tunnel with concrete walls is surrounded by gravel, while there is clay under the floor.…”

Section: Geometry Model Of the Regionmentioning

confidence: 99%

Radiation shielding for the Main Injector collimation system

Rakhno¹

2007

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Collimation for the Fermilab booster to main injector transfer line

Cited by 5 publications

References 3 publications

Fermilab main injector: High intensity operation and beam loss control

Fermilab main injector: High intensity operation and beam loss control

Design Considerations and Operational Features of the Collimators for the Fermilab Main Injector and Recycler [Slides]

Radiation shielding for the Main Injector collimation system

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