Available Beams

An estimate of the yield of rare isotopes produced at NSCL can be calculated with the program LISE++. Please note that LISE++ is meant to provide an estimate of the beam rates. The facility does not guarantee that rates and purities will be in exact agreement with calculation, though we do our best to continuously improve the LISE++ calculations.

CCF PRIMARY BEAM LIST

A

Element

Energy (MeV/nucleon)

Intensity (pnA)

16

O

150

175

18

O

120

150

20

Ne

170

80

22

Ne

120

80

22

Ne

150

100

24

Mg

170

60

28

Si

160

10

36

Ar

150

75

40

Ar

140

75

40

Ca

140

50

48

Ca

90

15

48

Ca

140

80

58

Ni

160

20

64

Ni

140

7

76

Ge

130

25

82

Se

140

35

78

Kr

150

25

86

Kr

100

15

86

Kr

140

25

96

Zr

120

1.5

92

Mo

140

10

112

Sn

120

4

118

Sn

120

1.5

124

Sn

120

1.5

124

Xe

140

10

136

Xe

120

2

208

Pb

85

1.5

209

Bi

80

1

238

U

45

0.1

238

U

80

0.2



                                ReA3 RADIOACTIVE BEAM LIST

The following list is for ReA3 experiments. If you plan to propose a very low energy "stopped beam" experiment, for example using LEBIT or BECOLA, the rates will be higher and a wider range of elements may be available. Please contact Antonio Villari for assistance.
Notes:
  • Expected ReA3 beam intensities and corresponding maximum energy is listed in the table assuming acceleration of ions in the he-like charge state. The minimum energy is 300 keV/u; higher energies can in principle be reached up to the limit of about 6 MeV/u in selected cases at reduced intensity. Please contact Antonio Villari for assistance if you would like to propose use of a higher energy.
  • The ReA3 beam has a microstructure of 80.5 MHz and a macrostructure varying from  about 1 Hz to 10 Hz.  Typical duty cycle varies from 10% to a maximum of 40%. The choice of the duty cycle and frequency is a compromise between the charge state to be accelerated and the experimental apparatus.
  • All beams may be contaminated by their daughters and grand-daughters. Experiments should expect a level of contamination of the order of 20% or higher. Some beams can also have stable contamination, depending on the charge state used in the acceleration.
  • g/i refers to presence of ground state and isomeric state
  • Isotopes with lifetimes longer than 10 minutes can be difficult to tune.  Please contact Antonio Villari for assistance if you need a long-lived isotope and would like to use any of these beams for your proposal.
  • Additional beams not on the list may be possible. Requests for new stable beams can be sent to the Manager for User Relations, Jill Berryman, in the form of a letter to the NSCL Director. New radioactive beam requests can be made via a Letter of Intent during a period when the PAC is accepting proposals.
ReA3 RADIOACTIVE BEAM LIST in excel

   REA3 STABLE BEAM LIST

Below is a list of stable beams that have been used at ReA3, but it is possible to run many other beams with some development work from the ReA3 Operations Group.  If you are interested in using a stable beam for an experiment at ReA3 that is not on the beam list, please contact the Manager for User Relations. Feasibility will be discussed with the ReA Operations group, and if the beam is found to be feasible, you will be directed to write a letter to the NSCL Director for a discretionary beam experiment.

Element A ReA Intensity (pps)
p 1 3.E+10
He 4 3.E+10
C 12 2.E+06
C 13 2.E+04
N 14 3.E+07
N 15 1.E+05
O 16 8.E+06
O 18 2.E+04
Na 23 8.E+06
K 39 8.E+06
K 41 1.E+05
Ar 40 4.E+06
Ar 36 1.E+04
Rb 85 1.E+07
Rb 87 4.E+06
Cs 133 5.E+06