SSRL Users Newsletter

The 1996/97 User Run

S. Barrett

The November 4, 1996 to July 31, 1997 user run was a busy time for the User Administration Group. The SSRL user community continues to grow and now boasts users from 36 U.S. states and 20 countries. Over 1100 users from 169 institutions were involved with proposals which received beamtime.

We recently had an opportunity to profile our user community over the past 10 years and found the following user trends:

It is also interesting to note the distribution of users among the diverse fields of science conducted at SSRL:

Distribution of Users by Discipline FY97:

Despite an exceptional (95%) beam time delivery rate, beam time demand continues to outpace beam time availability. The overall ratio of beam time requested to beam time available for all beamlines was 1.43. In other words, users requested 43% more time than we were able to provide.

Overall Experience FY97

Beam Quality FY97

I am pleased to report that the majority of the users that arrived on-site to conduct experiments throughout the FY97 user run had a very favorable experience and were pleased with the quality of the beam provided. SSRL asks all proposal spokespersons to complete an End of Run Summary (ERS) form at the conclusion of each experiment. The form serves three purposes: (1) Positive and negative feedback to SSRL staff with the goal of continually improving our support and productivity, (2) a record of beam time received and (3) a source of information for the DOE and the SSRL staff regarding the work performed here. The user comments and staff responses are summarized for the SSRL Users Organization Executive Committee and SSRL management. The ERS database allows us to sort user comments and staff responses in a variety of ways in order to analyze both negative and positive trends.


L. Dunn