1. Witold Nazarewicz (HRIBF scientific director)
Comment on the FY2011 DOE Budget Request and its impact on the Holifield Radioactive Ion Beam Facility (HRIBF) at the Oak Ridge National Laboratory
Witold Nazarewicz (HRIBF scientific director)
NSAC Meeting, March 2, 2011, Rockville, MD

2. The increase of $70,300,000 relative to the FY 2010 Appropriation (including SBIR/STTR) is dominated by a $64,000,000 increase in the profiles of large construction projects: a $46,000,000 increase for the 12 GeV CEBAF Upgrade project, consistent with the baselined funding profile, and an $18,000,000 increase for FRIB, consistent with the cooperative agreement with Michigan State University. The increases required for these two high priority projects have required strategic decisions elsewhere in the program, most notably the closure of HRIBF as a national user facility in FY 2012.
$10,259,000
“The current U.S. program is world-leading, with the highest intensity fast exotic beams available at the NSCL and a unique set of beams from actinide targets at HRIBF.”
“Clearly, the major national user facilities in the United States (NSCL at MSU, and HRIBF at ORNL) are now competitive with the world's other leading facilities and, thus, are extremely important.”
“HRIBF has demonstrated the ability to accelerate approximately 175 radioactive isotopes including 140 neutron-rich species; more than 50 of these, including 132Sn, are available at intensities of 106/s or greater. The post-accelerated neutron-rich beams are unique worldwide.”
“To launch the field into this new era requires the immediate construction of FRIB with its ability to produce ground-breaking research, and effective utilization of current user facilities, NSCL, HRIBF and ATLAS.” (FRIB recommendation)

3. UNIQUE: The first facility in the world to accelerate neutron-rich fission fragments above the Coulomb barrier. 
Science that makes headlines and cover stories
Societal impact
Core capabilities used for society
NNSA SSAA center
Education for science and national needs
In FY HRIBF has served 320 researchers doing experiments as users, representing 22 states and 20 countries.

4. High impact science
Service to society

5. Impact of recent (2009-2010) Publications

6. Examples (on-line date) $38.9M (last 10 years), $25.2M (last 5 years)
Investments in HRIBF
Investment
Examples (on-line date)
Cost
Facility
Laser systems for beam purification via resonant laser ion sources and RIB coolers ( )
ISOL development facilities
ISOL production system upgrades
Tandem accelerator improvements
Beamline upgrades, power supplies, pumps, control systems, safety systems, etc…
$9.7M
Experimental Systems
LeRIBSS (2008)
CLARION
MTAS ( )
ORRUBA ( )
GRETINA Infrastructure (2012)
HPGe Detectors (2012)
Transfer Reaction Instrumentation (2012)
Gas Jet Target (2012)
$9.5M
High Power Target Laboratory (HPTL)
On-line 2006
$4.8M
Injector for Radioactive Ion Species 2 (IRIS2)
On-line 2011
$4.7M
ORIC Refurbishment Project
Complete 2013
$4.2M
ORNL infrastructure investment
Cooling tower (2010)
Electrical substation upgrades (2010)
Variable frequency drives (2011)
Program development
$6M
Total Investment in HRIBF
$38.9M (last 10 years), $25.2M (last 5 years)
Leading ISOL facility in the world
High level of flexibility

7. Fruits of wise investments, devotion, and very hard work…
The investments in HRIBF pay off!
Last two weeks: February 2011 (online data) 0+ 2+
84Ge
624
85Ga
73(15) ms n }
βn = 65(30)%
(5/2+)
(1/2+)
85Ge
107
(5/2-)
85Ga54
624 keV
511 keV
583 keV
βγ singles
Summer 2006
February 2011
624 keV
107 keV
83Ge
81Zn
83Ga
84Ge
81Ga
78Ni
82Zn
84Ga
85Ge
85Ga
79Cu
83Zn
86Ga
86Ge
82Ga ?
Fruits of wise investments, devotion, and very hard work…
+ 137Sb

8. Rates matter! Radioactive ion rates in particles per second (pps)
GSI FRSa
NSCLb
ISOLDEc
HRIBF
cocktail
post-fragm.
cocktail post-fragmentation
postaccel
isotopically-pure
ISOL beams
1997
Stopped/reaccel
in-flight
2006d
2008e
2011f
81Zn -
3.0x10-3
6.6x10-3
75-550 30
300
82Zn
2.4x10-4
5.0x10-4
1.1x10-3
10-50
83Zn
1.9x10-5
4.0x10-5
1.2x10-4
1-5
85Ga
3.0x10-4
1.2x10-3
1.2
0.1 40
86Ga
8.0x10-6
7.0x10-6
1.4x10-4
0.15
1-3
Experimental rates at the detector stations (Bernas et al, Phys. Lett. B 414, 111, 1997)
Predicted reaccelerated rates
The postaccelerated rates are 10% of the ion source rates:
Winger et al., Phys. Rev. C 81, (2010)
Padgett et al., Phys. Rev. C 82, (2010)
HRIBF IRIS2- LeRIBSS experiment, February 2011
Combination of ISOL beams, accelerated high intensity ISOL beams, and specialty instrumentation allowing high detection efficiency – make HRIBF unique worldwide

9. NOT shown at NSAC meeting, contains anticipated FRIB rates
Rates matter!
Radioactive ion rates in particles per second (pps)
GSI FRSa
HRIBF
FRIBb
cocktail
post-fragm.
isotopically-pure
ISOL beams
cocktail post-fragmentation
1997
2006c
2008d
2011e
reaccel
stopped
in-flight
81Zn - 30
300
287
1100
3100
82Zn
2.4x10-4
10-50 82
317
900
83Zn
1.9x10-5
1-5 2 9 26
85Ga
1.2x10-4
0.1 40 43
170
510
86Ga
8.0x10-6
1-3
0.6 8
Experimental rates at the detector stations (Bernas et al, Phys. Lett. B 414, 111, 1997)
Calculated rates for FRIB from
Winger et al., Phys. Rev. C 81, (2010)
Padgett et al., Phys. Rev. C 82, (2010)
HRIBF IRIS2- LeRIBSS experiment, February 2011
NOT shown at NSAC meeting, contains anticipated FRIB rates

10. HRIBF is unique worldwide; key component of the worldwide program
HRIBF enables world-leading research in the field of rare isotopes. It is the only U.S. facility providing the capability for studying the properties of rare isotopes with ISOL techniques. Scientists at HRIBF are actively involved in a number of highly productive international collaborations in radioactive nuclear beam science, including R&D on targets, laser ion sources, and digital signal processing. There are ongoing collaborations, including Memoranda of Understanding, with a number of leading radioactive nuclear science laboratories worldwide. The number of international users at HRIBF is substantial and growing year by year; of the 26 scientific proposals submitted to the last Program Advisory Committee of HRIBF, 10 had international spokespersons and eight others had international participants.
HRIBF provides the missing link on the path to FRIB
HRIBF plays a crucial role in the pathway to FRIB with its proven capability to provide intense rare-isotope ISOL beams for the user community for the next decade and training the next generation of RNB scientists.
The HRIBF also provides, in a cost-effective manner, continued scientific resources for the community of researchers using rare isotopes, allowing them to develop scientific programs and answer important scientific questions in preparation for, and in helping guide the first generation of experiments at FRIB. It will advance science and enhance the value of research at FRIB, while preparing the community and providing the technical advances to make an ISOL program at FRIB possible.

11. Over 200 U.S. and 400 International signatories as of March 2, noon
Exciting and cost-effective upgrade plans and the new mission

In November 2009 a very successful and internationally supported HRIBF users workshop was held: HRIBF, Upgrade for the FRIB Era in support of a proposed 70MeV cyclotron for HRIBF. The workshop was attended by 151 participants representing 44 institutions from 10 countries. The workshop identified exciting, cost-effective, and cost-saving upgrade plans that were submitted to DOE.
REPORT
HRIBF, Upgrade for the FRIB Era
An HRIBF Users Workshop
November 13-14, 2009
We urge you to consider the outstanding scientific opportunities and societal applications available though the facility, strategic relevance to FRIB, the importance of training nuclear scientists, and the proper use of recent investments – to find a way to preserve unique capabilities of HRIBF for science and the Nation.
Over 200 U.S. and 400 International signatories as of March 2, noon