NDLI: CESR status and plans

Content Provider	IEEE Xplore Digital Library
Author	Rubin, D.L.
Copyright Year	1995
Abstract	The CESR electron positron collider has been configured to operate with trains of closely spaced bunches that collide with a small horizontal crossing angle. The crossing angle scenario provides for an increase from seven to as many as 45 bunches per beam. Two pairs of electrostatic separators yield differential horizontal closed orbits for the electron and positron beams. The separators are powered antisymmetrically with respect to the two-fold symmetry of the storage ring. The bunches collide with a small horizontal angle of /spl plusmn/2.1 mrad, that serves to separate the counterrotating bunches at the parasitic crossing points adjacent to the IP. Nine trains, with temporal length of up to 56 ns can be accommodated. The storage ring has operated for high energy physics with trains of two bunches spaced 28 ns apart and reached peak luminosity of 3.3/spl times/10/sup 32/ cm/sup -2/ s/sup -1/. The Phase II upgrade of the interaction region, now underway, will permit an increase in current to 300 mA per beam, and luminosity to 6/spl times/10/sup 32/ cm/sup -2/ s/sup -1/. In Phase III of the CESR upgrade, scheduled for completion in 1995, the room temperature RF system will be replaced with single cell superconducting cavities. The single beam limit will increase to 500 mA, and the luminosity to 10/sup 33/ cm/sup -2/ s/sup -1/.
Starting Page	481
Ending Page	485
File Size	482594
Page Count	5
File Format	PDF
ISBN	0780329341
DOI	10.1109/PAC.1995.504697
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-05-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Positrons Particle separators Orbits Electrostatics Electron beams Storage rings Switches Physics Temperature Radio frequency
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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Effect on luminosity from bunch-to-bunch orbit displacements at CESR

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CESR performance and upgrade status

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