Accelerator

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Technical Information – Beam intensity

SRC

For those who plan to propose an SRC-use experiment in the next PAC, please take a primary beam from the table, and the “expected" current also given in the table for its current. The 48Ca beam will be unavailable until the 48Ca ion source material becomes ready. If you plan to use an unavailable beam which is denoted by “N/A” or not listed in the table, it is essentially important to make a contact with the RNC Accelerator Group well in advance before the proposal submission.

Beam particle E/A(MeV) Beam current (pnA) Injector  
Maximum
(instantaneous) achieved so far		 Expected ¶
(for exp. planning in your proposal)
d 250 1000 200 AVF  
d(pol.) 250 120 30 AVF *
4He 320 1000 1000 RILAC **
14N 250 400 400 AVF  
18O 220 550 400 AVF  
18O 230 838 400 AVF  
16O 250 200 200 AVF  
18O 250 490 200 AVF  
18O 345 1000 500 RILAC **
48Ca 345 738 500 RILAC **
70Zn 345 826 500 RILAC2  
76Ge 345 not tested N/A RILAC **
78Kr 345 690 500 RILAC2  
86Kr 345 30 200 RILAC **
136Xe 345 not tested 20 RILAC2  
124Xe 345 173 140 RILAC2  
238U 345 117 70 RILAC2  
¶ Some intensities are limited by shielding requirements / * Development for ion-beam production at the appropriate ion source is necessary./ ** The RILAC injection operations are now unavailable because RILAC is dedicated to its stand-alone operations.

Please also refer our tentative two-year plan of primary beams for BigRIPS-based experiments:

Fiscal Year 2025 : 238U+(124Xe, 78Kr, 70Zn, light ions)
Fiscal Year 2026 : (To be decided)

 

RRC

RRCのビームはAVF又はRILAC入射により提供されます。Neより重いビームをAVF入射で利用したい場合、東大 CNSと共同研究によりビーム開発する必要があります。実験提案の際は、事前に CNS の担当者とコンタクトを取るようお願いします。

Beams from RRC are delivered in the schemes of AVF or RILAC injection. If you plan to use RRC beams heavier than Ne isotopes in the AVF-injection scheme, they need to be developed in collaboration with CNS, University of Tokyo. It is essentially important to contact User Support Office or CNS before you submit a proposal.

RRC Beams (Approximately 70% of the maximum actual valuel)

Beam particle E/A(MeV) Current (pnA) Injector Ion Source  
p 160 1000 AVF ??? **
p(H2+) 70 870 AVF PIS **
d(pol.) 135 30 AVF PIS **
4He 135 500 AVF HYPER  
11B 70 170 AVF HYPER  
12C 135 480 AVF HYPER  
13C 100 440 AVF HYPER  
115 100 AVF HYPER  
14N 100 210 AVF 18GHz&HYPER  
135 340 AVF HYPER  
18O 100 290 AVF 18GHz&HYPER  
20Ne 135 160 AVF 18GHz  
22Ne 110 150 AVF HYPER  
23Na 63 * RILAC 　 ***
24Mg 100 50 AVF HYPER  
28Si 135 * AVF HYPER **
32S 100 * AVF HYPER **
36Ar 115 10 AVF HYPER  
40Ar 63 * RILAC 　 ***
95 42 AVF 18GHz  
40Ca 100 * AVF HYPER **
48Ca 63 * RILAC 　 ***
51V 6 3000 RILAC2 28GHz  
56Fe 90 3 AVF HYPER  
58Fe 63 * RILAC 　 ***
58Ni 63 * RILAC 　 ***
95 * AVF 　 **
70Zn 2.9 * RILAC 　 ***
84Kr 38 * RILAC 　 ***
70 5 AVF 18GHz  
85Rb 66 * AVF 　 **
87Rb 66 * AVF 　 **
124Xe 10.75 3000 RILAC2 28GHz  
129Xe 36 0.8 AVF 18GHz  
136Xe 10.75 750 RILAC2 28 GHz  
238U 10.75 1000 RILAC2 28 GHz  
* Contact RIBF User Support Office / ** Development for ion-beam production at the appropriate ion source is necessary.　/　*** The RILAC injection operations are now unavailable because RILAC is dedicated to its stand-alone operations.
 

 

 

AVF

If you plan to use beams heavier than Ne isotopes, they need to be developed in collaboration with CNS, University of Tokyo. It is essentially important to contact User Support Office or CNS before you submit a proposal.

AVF Beams (Approximately 70% of the maximum actual valuel)

Beam particle E/A(MeV) Current (pnA) Ion Source  
p 12 20000 18GHz&HYPER  
14 22000 18GHz&HYPER  
19 11000 HYPER  
20 7300 HYPER  
30 8300 HYPER  
d 12 2000 HYPER  
15 13000 HYPER  
4He 5 1000 18GHz&HYPER  
6.25 5000 18GHz&HYPER  
6.5 3500 18GHz&HYPER  
7.25 20000 18GHz&HYPER  
8.8 1700 HYPER  
12.5 8000 HYPER  
6Li 9.5 280 HYPER  
11.2 1300 HYPER  
12 * 　  
7Li 3.4 900 HYPER  
5 900 HYPER  
5.6 1500 HYPER  
6 1700 HYPER  
6.5 250 HYPER  
8.3 1100 HYPER  
8.6 1250 HYPER  
8.76 25 HYPER  
10 1400 HYPER  
10B 8.5 700 HYPER  
11B 4 * 　  
4.6 700 HYPER  
5 1000 HYPER  
5.845 1000 HYPER  
6.13 440 HYPER  
12C 7.3 2500 HYPER  
13C 6 884 HYPER  
6.13 440 HYPER  
14N 5 850 18GHz&HYPER  
6.67 1400 18GHz&HYPER  
7.25 1250 18GHz&HYPER  
8.4 600 18GHz&HYPER  
15N 5 870 18GHz&HYPER  
5.94 920 18GHz&HYPER  
6.116 870 18GHz&HYPER  
6.4 1000 18GHz&HYPER  
7 1500 18GHz&HYPER  
16O 6.25 900 18GHz&HYPER  
6.8 1650 18GHz&HYPER  
10 880 18GHz&HYPER  
10.3 100 18GHz&HYPER  
11 370 18GHz&HYPER  
18O 5.9 1350 18GHz&HYPER  
6.07 1000 18GHz&HYPER  
6.28 2850 18GHz&HYPER  
7 2100 18GHz&HYPER  
20Ne 5 600 18GHz&HYPER  
6.2 460 18GHz&HYPER  
8.2 270 18GHz&HYPER  
22Ne 6.1 800 18GHz&HYPER  
6.32 420 18GHz&HYPER  
6.36 570 18GHz&HYPER  
24Mg 7.5 300 HYPER  
36Ar 3.6 200 18GHz&HYPER  
40Ar 3.97 100 18GHz&HYPER  
5.2 320 18GHz&HYPER  
83Kr 5.45 3 18GHz  
84Kr 4 8 18GHz  
* Contact RIBF User Support Office

 

RILAC

For beams not listed here, please contact User Support Office or Accelerator Division directly before you submit a proposal.

RILAC beams (The beam intensities obtained.)

Beam particle E/A(MeV) Current (pnA) Ion Source  
4He 7.5 * 28GHz **
14N 0.45 * 28GHz **
15N 1.2 * 28GHz **
16O 6 * 28GHz **
18O 6 * 28GHz **
22Ne 6 * 28GHz **
23Na 6 * 28GHz **
24Mg 3.54 * 28GHz **
24Mg 6 * 28GHz **
26Mg 5.6 * 28GHz **
27Al 5 * 28GHz **
27Al 5.37 * 28GHz **
40Ar 6.2 500 28GHz  
48Ca 4.71 * 28GHz **
51V 6.3 3000 28GHz  
56Fe 5.5 * 28GHz **
58Fe 5.5 * 28GHz **
70Zn 5.2 * 28GHz **
5.5 * 28GHz **
82Kr 4.8 * 28GHz **
86Kr 2.45 * 28GHz **
136Xe 0.7 * 28GHz **
* Contact RIBF User Support Office / ** Development for ion-beam production at the appropriate ion source is necessary.

 

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