Herman Winick Mentorship

1. Herman Winick Mentorship J. Schmerge Herman Winick Mentorship October 2, 2012

2. Brief History I • 1995 first meeting with Herman and interviewed for a postdoc position a few months later • Thrilled to get a job offer • Started working on the Gun Test Facility (GTF) to improve injector brightness in January 1996 • Worked closely with Herman building, commissioning and improving the GTF for 3 years • In the process Herman transferred a lot of knowledge about projects and management to me and other students Herman Winick Mentorship October 2, 2012

3. Brief History II • Early 1990’s Winick was coordinating a group from LBL, LLNL, SLAC and UCLA studying linac driven X-ray FELs • Study group realized R&D on sources was required to produce the necessary brightness for an X-ray FEL and Winick started collaboration to build new RF gun • BNL (I Ben-Zvi, X. Wang) • SLAC (H. Winick, D. Palmer, R. Miller) • UCLA (J. Rosenzweig, C. Pellegrini) • Winick proposed the Gun Test Stand, later called GTF, at SSRL to characterize electron injectors and reduce the emittance to the sub micron level necessary for linac driven X-ray FELs • SLAC (H. Winick, J. Schmerge, M. Hernandez, H. Wiedemann, J. Weaver and SSRL staff) • University of Rochester (D. Meyerhofer, D. Reis) • By 2006 GTF developed new injector which provides sub-micron emitance for LCLS based on prototype gun measurements • Developed the theory for metal cathodes to predict thermal emittance and quantum efficiency Herman Winick Mentorship October 2, 2012

4. RF Gun Herman Winick Mentorship October 2, 2012

5. 3M LINAC RF GUN DIAGNOSTIC ROOM MOD MOD MOD KLY-3 KLY-2 2 3 1 GTF LASER ROOM GTF Layout DIAGNOSTICS KLY-1 8 m Laser Transport System SSRL Injector Vault GTF Control Room Herman Winick Mentorship October 2, 2012

6. GTF Herman Winick Mentorship October 2, 2012

7. First Beam (1997) Herman Winick Mentorship October 2, 2012

8. Longitudinal Phase Space Twiss Parameters Downstream Linac Herman Winick Mentorship October 2, 2012

9. Transverse Phase Space Slice Emittance en (mm) Herman Winick Mentorship October 2, 2012

10. Mentor • Mentoring is a process for the informal transmission of knowledge, social capital, and the psychosocial support perceived by the recipient as relevant to work, career, or professional development;mentoring entails informal communication, usually face-to-face and during a sustained period of time, between a person who is perceived to have greater relevant knowledge, wisdom, or experience (the mentor) and a person who is perceived to have less (the protégé) (Bozeman, Feeney, 2007). Herman Winick Mentorship October 2, 2012

11. Lessons From Herman • How to survive on a shoestring budget • How to build a collaboration • How and when to stay below the radar • How to work at a national laboratory • Work and safety planning • How to beg, borrow and steal from better funded groups Herman Winick Mentorship October 2, 2012

12. Life Lessons • Lead by example • Compassion for colleagues • Conflict resolution • Communication, communication, communication • Benefits of frequent flyer membership • Parenting Herman Winick Mentorship October 2, 2012

13. Non-Technical Lessons Herman Winick Mentorship October 2, 2012

14. Winick Impact • LCLS success in part due to the injector R&D program he had the vision to begin • Reduced correlated energy spread • Eliminated the quadrupole field in the gun • Added solenoid correctors that are essential to the LCLS operation • Mentoring • My career was possible because of what I learned working with Herman • I hope to pass the torch and be as successful mentoring others as Herman has been Herman Winick Mentorship October 2, 2012