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Potential Duplicate Authors:

• R. Carrigan, 4 publications

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3 papers

title:	First results of the Fermilab high-brightness RF photoinjector
format:	conference procceeding
conference:	1999 Particle Accelerator Conference
year:	1999
18 authors:	Carneiro, J. P. | R. A. Carrigan | Champion, M. S. | P. L. Colestock | H. T. Edwards | Fuerst, J. D. | W. H. Hartung | Koepke, K. P. | Kuchnir, M. | J. K. Santucci | Spentzouris, L. K. | Fitch, M. J. | Melissinos, A. C. | P. Michelato | C. Pagani | Sertore, D. | N. Barov | J. B. Rosenzweig
abstract:	A collaboration has been formed between FNAL, UCLA, LNFN Milano, the University of Rochester, and DESY to develop the technology of an RF photoinjector, followed by a superconducting cavity, to produce high bunch charge (8 nC) with low normalized emittance ([left angle bracket]20 mm mrad) in bunch spacing trains of 800 bunches separated by mu s. The activities of bunch charge the collaboration fall into two categories: 1. the development of Injector II for the TeSLA/TTF accelerator. This photoinjector (TTF RF Gun) was tested at Fermilab in September and October 1998 and installed at DESY in November 1998. 2. the installation at the A0 Hall of Fermilab of a modified version of the TTF photoinjector, for photoinjector R&D and to study novel applications of high-brightness, pulsed electron beams. This photoinjector (A0 RF Gun) produced its first beam in March 1999. This paper presents a summary of the tests done at Fermilab on the TITF Injector II and the first results obtained on the new Fermilab photoinjector.
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title:	First Observation of Luminosity-Driven Extraction Using Channeling with a Bent Crystal
format:	preprint
year:	1998
26 authors:	Asseev, A. | Baker, S. I. | S. A. Bogacz | Biryukov, R. A. | R. A. Carrigan | Chen, D. | D. B. Cline | Cox, B. | Ellison, J. A. | Gabella, W. | Golovatyuk, V. | G. Jackson | Khanzadeev, A. | McManus, A. | Mokhov, N. | C. T. Murphy | Newberger, B. | Prokofieva, T. | Ramachandran, S. | Rhoades, J. | J. B. Rosenzweig | Samsonov, V. | Shih, H. J. | Solodov, G. | Tartin, A. | Tsyganov, E.
abstract:	Luminosity-driven channeling extraction has been observed for the first time from a 900 GeV circulating proton beam at the Fermilab Tevatron. The extraction efficiency was found to be of he order of 30%. A 150 kHz beam was obtained during luminosity-driven extraction with a tolerable background rate at the collider experiments, and a 900 kHz beam was obtained when background limits were doubled. This is the highest energy at which channeling has been observed.
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title:	Extraction from TeV-Range Accelerators Using Bent Crystal Channeling
format:	unknown
year:	1994
45 authors:	R. A. Carrigan | Chen, D. | P. Colestock | Herrup, D. | Goderre, G. | G. Jackson | C. T. Murphy | Stefanski, R. | Baker, S. | Mokhov, N. | Parker, B. | Shih, H. J. | Soundranayagam, R. | Toohig, T. | Peggs, S. | Sun, C. R. | Boden, A. | D. B. Cline | Gabella, W. | Ramachandran, S. | Rhoades, J. | J. B. Rosenzweig | Arenton, M. | Conetti, S. | Cox, B. | Dukes, D. | Golovatyuk, V. | McManus, A. | Nelson, K. | Norem, B. | Newberger, B. | Ellison, J. A. | Erwin, A. | Rossmanith, R. | Kovalenko, A. | Taratin, A. | Malakhov, N. | Tsyganov, E. | Bavizhev, M. | Biryukov, V. | M. Maslov | Khanzadeev, A. | Prokofieva, T. | Samsonov, V. | Solodov, G.
abstract:	Plans and first results from Fermilab Experiment 853 are presented. E853 is an experiment to test the feasibility and efficiency of extracting a low-intensity beam from the halo of the Tevatron using channeling in a bent silicon crystal. The motivation of the experiment is to apply crystal extraction to trans-TeV accelerators like the LHC. Channeling developments related to crystal extraction and some early results from accelerator studies at the Tevatron are presented.
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