Number of Users of BES Facilities

Number of Users*
FY 2000	FY 2001	FY 2002	FY 2003	FY 2004	FY 2005	FY 2006	FY 2007
								Synchrotron Radiation Light Sources
2,551	2,523	2,413	2,206	2,299	2,256	2,105	2,219		National Synchrotron Light Source (NSLS)
895	907	1,023	867	741	1,007	1,124	1,151		Stanford Synchrotron Radiation Laboratory (SSRL)
1,036	1,163	1,385	1,662	1,898	2,003	2,158	1,748		Advanced Light Source (ALS)
1,527	1,989	2,299	2,767	2,773	3,215	3,274	3,420		Advanced Photon Source (APS)
								High-Flux Neutron Sources
--	--	--	--	--	--	--	24		Spallation Neutron Source (SNS)
153	0	22	51	48	96	42	72		High Flux Isotope Reactor (HFIR)^a
230	240	243	229	279	244	211	173		Intense Pulsed Neutron Source (IPNS) ^b
25	122	164	269	339	221	297	272		Manuel Lujan Jr. Neutron Scattering Center (Lujan Center)
								Electron Beam Microcharacterization Centers
83	88	103	95	128	154	140	199		Electron Microscopy Center for Materials Research
201	212	232	253	241	232	205	183		National Center for Electron Microscopy
99	97	111	112	109	150	132	159		Shared Research Equipment Program
392	405	477	532	617	690	--	--		Center for Microanalysis of Materials ^d
								Specialized Single-Purpose Centers
81	92	109	143	116	130	120	147		Combustion Research Facility (CRF)
235	213	191	197	221	61	220	208		Materials Preparation Center ^c
74	83	77	73	74	38	39	41		Pulse Radiolysis Facility ^c
72	49	72	68	--	--	--	--		James R. Macdonald Laboratory ^e
91	73	--	--	--	--	--	--		Surface Modification and Characterization (SMAC) Center ^f

* Users are researchers who propose and conduct peer-reviewed experiments at a scientific facility. • The primary type of user is a Badged User, i.e., a researcher who conducts experiments within the facility. • There are two other types of users who conduct experiments: (1) Remote User—a researcher who has been granted authority to remotely produce data (this excludes persons who can “look at data”); and (2) Off-Site User—a researcher to whom the facility provides custom-manufactured materials, tools, or devices that the facility has unique or unusual capabilities to fabricate (this applies only to such activities at Nanoscale Science Research Centers). For both types of these users, only one user is to be counted per proposal regardless of the number of co-investigators, and only if no individual is counted in any of the other user categories under the same proposal. • For annual totals, an individual is counted as 1 user at a particular facility no matter how often or how long the researcher conducts experiments at the facility during the fiscal year. A Badged User cannot also be counted as another type of user. Users must submit a successful, peer-reviewed research proposal and conduct experiments, as described above. Therefore, users do not include individuals who only send in samples to be analyzed, even if such activities are part of a peer-reviewed experiment. Users do not include individuals who pay to have specialty services performed or visit the facility for tours or educational purposes. Users also do not include researchers who collaborate on the proposal or subsequent research papers but do not conduct experiments at the facility.

^aHFIR was down for maintenance, safety standowns, and upgrades for significant periods during FY01–FY06. HFIR's users include researchers who perform neutron scattering (figures shown above). HFIR also delivers services such as neutron activation analyses and materials irradiation.
^bThe IPNS started to identify remote users in FY 2005 (153, FY05; 117, FY06; and 55, FY07; not included in above table).
^c The Materials Preparation Center and the research facilities within the Notre Dame Radiation Laboratory were designated BES user facilities prior to FY 2008.
^dThe Center for Microanalysis of Materials at the University of Illinois was designated a BES user facility prior to FY 2006.
^eThe James R. Macdonald Laboratory was designated a BES user facility prior to FY 2004.
^fThe Surface Modification and Characterization Center was designated a BES user facility prior to FY 2002.