|  | Introduction to the Operation of the KSU-CRYEBIS
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| Introduction to the Operation of the KSU-CRYEBIS Short Course Syllabus
  
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| Time &Locations: | 29 June 1998 Cardwell 119 and J.R. Macdonald Laboratory
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| Provided Text: | "The Operation of Electron Beam Ion Sources for Atomic Physics", Martin P. Stockli, in
 "Accelerator-Based Atomic Physics Techniques and Applications"
 S. Shafroth and J. Austin, edts.,
 (American Institute of Physics, 
Woodbury, New York, 1997), pg. 67-116.
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| Enrollment: | Restricted to approximately 8 lab participants, instructor's permission required.
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| Lecturer: | Martin P. Stöckli, Voice: 785-532-2661, Fax: 785-532-6806
 stockli@phys.ksu.edu
 Office Hours: Cardwell 17, Tu, Th 3-4 pm, and by appointment
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| Lab Instructor: | Paul E. Gibson Voice: 785-532-2650
 Office: Cardwell 19
 paul@phys.ksu.edu
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Lecture 1: (9:30-10:15) Production of Highly-charged Ions
	 
	Motivation, direct electron impact ionization cross 
	sections, evolution of charge states, ionization factor,
	maximum abundance of charge states, indirect ionization 
	and maximum abundance of Ne like ions, ionization factor 
	and confinement time, limits on useful confinement times, 
	ion yields limited by the seed trap, other limits of the 
	ion yield.
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Lecture 2: (10:30-11:15) Operation of the KSU-CRYEBIS
	 
	Optimization of high and low charge states, the operation 
	of the 5T solenoid, the electron beam: current, current 
	density, energy, seed gas injection, the ion switch yard, 
	fast and slow expulsions.
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Lecture 3: (2:30-3:15) Ion Beam Transport on the KSU-CRYEBIS
	 
	Electrical vs. magnetic ion transport elements, focussing 
	of the accelerator column, maximum platform voltage, 
	refocusing to the target station, magnetic ion optical 
	elements, electric einzel lenses, measuring the ion energy 
	per charge and ripple, transporting very low ion energies.
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Lecture 4: (3:30-4:15) Diagnostics on the KSU-CRYEBIS
	 
	Charge state distributions, resolution and slits, tables 
	with required analyzing fields, current measurements, 
	gated current measurements, ion beam time structure 
	measurements, measurements with multipliers, checking 
	internal connections.
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Laboratory: (5-7 hours, by appointment, June 30, July 1, 2, or 3) 
 
 adjusting CRYEBIS for high (Xe35+) &low (S+) charge states:
	
	
	changing seed gas supply, 
	changing solenoid field, 
	tuning electron beam transmission, 
	optimizing desired charge state, 
	measuring charge state distribution, 
	tuning slow and fast expulsions
	 accelerating S8+ ions to 50 keV/q
	
	
	changing platform high voltage supply, 
	detecting ions at switching magnet with BPM and FC 
	optimizing transport with platform elements, 
	identifying charge states with diagnostics
	 transporting 50 kV S8+ ions to a target in a beam line
	
	selecting proper supplies for switching magnet and lenses
	finding ions with multiplier, slits, or Faraday cup,
	determining peak count rates of detected particles 
	 decelerating S8+ to 1 keV/q, and repeating 2) 
 transporting 1 kV/q S8+ ions to a target in a beam line
	and repeating 3)
 
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| A short course on Vacuum Physics is also being 
offered this summer.
 
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