Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japanand the 33rd Linear Accelerator Meeting in Japan (August 6-8, 2008, Higashihiroshima, Japan)

PRESENT STATUS OF RIKEN RI-BEAM FACTORY
Osamu Kamigaito 1, Masaki Fujimaki, Tadashi Fujinawa, Nobuhisa Fukunishi, Akira Goto, Hiroo Hasebe,
Yoshihide Higurashi, Kumio Ikegami, Eiji Ikezawa, Tadashi Kageyama, Masayuki Kase, Masanori Kidera,
Misaki Komiyama, Hironori Kuboki, Keiko Kumagai, Takeshi Maie, Makoto Nagase, Takahide Nakagawa,Jun-ichi Ohnishi, Hiroki Okuno, Hiromichi Ryuto2, Naruhiko Sakamoto, Yoichi Sato, Kenji Suda,
Masanori Wakasugi, Hiroshi Watanabe, Tamaki Watanabe, Kazunari Yamada, Shigeru Yokouchi,
and Yasushige Yano
RIKEN Nishina Center for Accelerator-Based Science
2-1 Hirosawa, Wako-shi, Saitama, 351-0198
Abstract
Recent developments of accelerators of RIKEN RI-Beam factory (RIBF) are shown as well as the results of theacceleration test performed in this year. Intense beam of 270 pnA of 48Ca was extracted from the Intermediate RingCyclotron (IRC) at 114 MeV/u. Uranium beam of 0.34 pnA was also extracted from the IRC. Present status of therefrigerator system of the Superconducting Ring-Cyclotron (SRC) is outlined. Developments of the new ECR ion
source with superconducting coils and the new injector system for RIBF are briefly illustrated.

ë ó RIr  u s \ d m x  M ê èMĊ~âã[Ĉ51ê³²ĀÜLb^yhqziM¶Č[ĈEH5Y2ÐNÁÔLü
ëórus\dmx" # M¡ė¯ĂN1@Y½I1 Ô9W~*)JULęē§Ĝ^b|ÿÅ¡ė¯ ÃJf^d{m{|¨IÚÉąLKY½I4Y2>Z1Þú9W_w|LĆYú[1!vnIėM  ' 0L¡ė@Yą[ÌF2 ¡ėru[»½ØìÉġĉā*)" # LÁ ÔLN /ru[¦ ' 0¾?H»½¤¹Øru[ìÉ?1º¼L8
RIù .,¡ė@Y=JLÉ ?C:1ÁÂ<YĜ5úM©ÉĚôMĊÒ~»½¤¹Ø[¬£NĕMÜÐ[?HĈ6=JLKEC2
TöÙM¤¹ØvlyMÚø~RIru[í5CÑ=ZJĈ?H1ÓÁRIM¡ėčĤMý×MĎû
?5ÇíĝMĞÊ[ñÍ?H5Y2K Ċ Ö L µ G 5 H 1  Ý ¡ ė ¯ Ă  ~  ~Á ÔLNĐÀx|ef^d{m{|("#~"#L8<YruĖĚ¢é«Jru" #" # LVY_w|ruM¡ėLÉ ?
1ªÄÂM¶Ä[±Y=JLKEC"#2ÁÔLN*)LVEHÑ?5ª &J &
3.1 48Ca¡ė:ìÉ>ZC "# 2=ZN1=ZRIM»½¤¹Ø
MìÉĠï[Đ71ě§ąDECģ´Lđ[ĒÁÔL $[í5H~~M¡ėSZC=J[È®?H8X1Èăä52čĤ[ĈEC2^b|æI$ [ìÉ?1=Z=MõIN1AMÆMIMÛ3KĞðèàJ
[I¡ėÆ1 ' 0I LćĢ·Ï?HĔ5¿ÕL«<CĞðċîLF5HĕQY2I¡ė1AMÆ ' 0IPCCOćĢ·Ï?

 H L?HI¡ė?C2¦Maoyc
N' 0I4Y2ćĢ·ÏM¢éNAZBZù
1I4EC2¡ė¯MÚÉN±Ħ[¥ç>
ZC52
=ZRIM$&*$+/-%':»½I4EC:1=M¡ėčĤML¤°:Ò?C2AMFN1
 M s w k m m k t ÷ Ą 9 W M ĥ ­ á :$&*$+
/-%'MgynJruj`|pMğIÎ?

8VO*)MÜN1ÁÔMęēĞ¸Õ1ħ}ÔôÂĘþęē@YJą:@YJ56©:ď;H5C2
Á ÔL1'²ĀÜ9WMß:ÜLå?H5Y=J:
ÒW9LKX1=Mß:ÜMs]yiLò?
Hą[Ë5H5Y=J:Ò?C2¤°N'²ĀÜMßġąđI4Y2=ZRILÜ
1E-mail: kamigait@riken.jp
Present address: Photonics and Electronics Science and Engineering
Center, Kyoto University, Nishikyo-ku, Kyoto, 615-8510

2-10-Proceedings of the 5th Annual Meeting of Particle Accelerator Society of Japanand the 33rd Linear Accelerator Meeting in Japan (August 6-8, 2008, Higashihiroshima, Japan)

iufÄCMĜ²S}jtf»ÇRîN<3Ā
ßÐý·SěÛfąË_=ē
8b_7RQKI4áSĚĪ¢ RT "%("* /-#&f RòDMØđEbOO]RèĨ¾ÃāfÝCI@O:`3u~uféüRÖ?
b_7RQKI4@cR_aěÛSďô;¯CI4
áSĚĪNTjmñ^]¿ÀN3:`SÍËTà»N ., 2  ..0 Y N ¸ ¤ C I 4
N wzzw¤ğRÑ£CII\3ÞÉRêWMĞĠ¦ô]¯CI !4YI3áSĚĪNT ÷úSĒĨ¹×ĐR&fö6I4

PP (Phase Probe)
Plastic ScintillatorfRC(2+1RF,14PP)

D-reb(1RF)AVF
S6-reb(1RF)
X-reb(1RF)
RILAC (9RF)
STe04

STM04

STA01

RRC (2RF, 20PP)

IRC(2+1RF, 15PP)
05 10 m
SRC(4+1RF, 20PP)

to BigRIPS´ĭĮS¤ğ±åÑ4{uCM6bSÚO3qjpzSûSÚ]þAcM6b4 jSûOrvuS99_GSČ]ĔþCI4

4.1 wpjhfö6
IRF9_Uûùėrsx

¤ğ±čTÊ6ă³RÙCMęČAcM9a3:
L»ĖæQ]SN5bSN3
ûS¿ÀËTëSAYBYQåÑç±S¿ÀË
M6bO67]SN5KI4@cfĦ>I\SČ
R»<=ÎĩAcb4ÞÉYNRÛAcM<IfEbOO]R­ċfÍ§CIO@d¼ĬQ~wpjhfö6I9_Uûùėu;Ö:cb_7RQKI4GSĈâ wzrsxfÔÌCM3´ĭRþE_7RMSSzwÿĎf°[ĆSû®eFQP3ěĨµû9_UĕQĂÒSûfÆßùÛSďô;¯CI4@cºR]ÏĝEb_7RėEbrsxfåĄCI !4yuTm j{uĆSØđQPfēKI4NĔþAcbOO]R3ßĆ OCMRĘĢAc
@S¤ğĚĪNTjmñĆĒĨ¹×Đ]
b4ĝCI¤ğĚĪNT3@Sm j{uģßĤ¿ÀN5KI4ĈâOCM:`SfÍËOO]R©óCLL3ĞĠ¦ôÍËTà»Nć .,  2  ..0fĘĢCI4 SĊÕR¥\I4
~Tć  )N5b4«:A`R3ðÀAcIßĆ yufö6M3SĨµûOûSûĥfěWbĚZ;½`«YNSĞĠ¦ôTà» 3OYKM6b ! 4ÏX:SðÀġªĨĨµÂSĞĠ¦ôTGcHc RQKI ! 4 ïqjpzSý·QPOSûĥ]ěW3áħRT@SfN¤ğCMÁĪRĉģßĤ¿ÀËS¯f´KM6=ÀN5b4
EbÀN5b44.2 g

É áOáRT3 fö6M
'S¤ğĚĪfēKI4jmñN 
fõÑC3@cfON¤ğÏ3 &1N RĒĨ¹×C'N¤ğ3GSÏ &1NVI
IUĒĨ¹×CMRCMN¤ğCI4
«Sl|oT&1N5b4ĒĨ¹×S¦ôTGcHcć 3 N5KI4áSĚĪ¢RT3'SûRÈíÞÉYNS¤ğĚĪNTg ynwSąË;¨N5KI;3ÞÉË_aqwqĨäSèĨ¾Ó¡¦âf¯AFIÜ¶Sg ynw;ÄAcI4@S7JSÚ¬SĨëĔþR
L6MT3k S¤ğĚĪR96M3ģÅ
ìAć $+Sg ynwfö6MãéC
I4YI3k fö6MÜ¶g ynwSqwqĨµf¹§AF3øõEb-11-ynwSīË§!

3.2 238U¤ğProceedings of the 5th Annual Meeting of Particle Accelerator Society of Japanand the 33rd Linear Accelerator Meeting in Japan (August 6-8, 2008, Higashihiroshima, Japan) ! :ïúQĖéA^H3×ÃÅQöĀÇ;Næġąač52ÃÅSħ®Â§RðačJL5]3åħ´Rģaê¹BHN?_2G^:r|vRfq
yh|I=MP<ÓQY±;<µD]?N:
ÖBH3

"!

!

$!~ěUHZ6Q2RIBFĝ§S÷ºQr|vÈ±ÈÅĢdg{r|va·¹QĝD]QS2}
Åa®ÈAFKK4]3ãÒÊR10Ú9[S2âP AMĤ¼¥Rċħ¯ÏĊ:¢äM4]3
SRCNBigRIPSañ5LÛÞôQºĩač6¹MRew{r|vĝQ8=]Ă}ċħ¯ÏĊ4]3
Ê %/QñDU<2sxt|k|nc2009ÃSCXQS2AVFldizoz{9[RĚ{jìćČĊ&,()Rĥóa  Ã9[čJL5r|vaRIBFMĝD]ĒòYA^L8\2î¬;H3ÃÅS±ĨÿR°¿&,() 1'#* r|vwd{RÒĞ:ğbM5]3a¨ęĄċħ¯ÏĎĈ !Q¡\ =LĕĩBH:2ÜÃÅQSĘ¾ECRdg{ëRĕĩaĥ³D]
øØĦMûÐBH3}Õ2?R°¿&,()a4[
¹M4]39CXíïBLª¹ÆČĊMñD]N2Ù±ØĦþÅRñQĉ7[^]YRNPJH3?R¼
¥S.(0,+"ýďRÁė¦N¤ăM4]3
[1] Y. Yano, Nucl. Instr. and Meth B 261 (2007) 1007.
ÊRfqyh|ñRìćČĊ 1'#* [2] T. Kubo et al., Nucl. Instr. and Meth. B 204 (2003) 97.
RĕĩYĆôQč`^H3 -1þÅR[3] H. Okuno et al., IEEE Trans. Appl. Supercond. 17 (2007)"  %/Q»BLSVNbO:đ[^1063.
P9JH:2¤þÅRÈÅR .   %/N[4] N. Fukunishi et al., Proc. PASJ4-LAM32 (2007) p. 1.
%  %/MSøØĦMûÐBH3ºñQ
[5] A. Goto et al., 18th Int. Conf. on Cyclotrons and theirApplications, Giardini Naxos, Italy, Sep30 – Oct5, 2007.
D]QSČĊ~MRr|vÉaÄ>]PORÀ²[6]T.
Ohnishi et al., J. Phys. Soc. Jpn. (2008) 083201.
:ËĐ9YB^P53
th#!

[7] T. Mitsumoto et al., Proc. 17 Int. Conf. on Cyclotrons andTheir Applications (2004) p. 384.
[8] J. Ohnishi et al., Proc. 17th Int. Conf. on Cyclotrons andTheir Applications (2004) p. 197.
[9] N. Fukunishi et al., PASJ5-LAM33, Hiroshima, Japan,
August 6-8, 2008, TO13.
[10] R. Koyama et al., PASJ5-LAM33, Hiroshima, Japan,
August 6-8, 2008, WP007.
[11] K. Suda et al., PASJ5-LAM33, Hiroshima, Japan, August6-8, 2008, WP048.
[12] T. Watanabe et al., PASJ5-LAM33, Hiroshima, Japan,August 6-8, 2008, WP058.
[13] H. Hasebe et al., PASJ5-LAM33, Hiroshima, Japan,August 6-8, 2008, WP046.
[14] H. Ryuto, et al., Nucl. Instr. and Meth. A 569 (2006) 697.
[15] J. Ohnishi et al., PASJ5-LAM33, Hiroshima, Japan, August
6-8, 2008, WP057.
[16] K. Morita et al., J. Phys. Soc. Jpn. 73 (2004) 2593.
[17] O. Kamigaito et al., Proc. PASJ3-LAM31 (2006) p. 502.
[18] H. Fujisawa, Nucl. Instr. and Meth. A 345 (1994) 23.

ew{PORĢ5r|vÈÅaA[Q®ÈD]HX2Ę¾dg{ëRĥóačJL5] ! 3?
^WMQuw|ü­8ZTáü­aðÍD]Ę¾kdyRďNüĕĩ:č`^H3ÃÅQ¸ÍD]¹M4]3WH2?Rdg{ëRHXRÝħüùYÃÅQÜ~:]¹M4]3?
^[Rã§a~èRĪ«m|upy~QĔĈ
B2aĜAEõÎQ½D]?NaàēB
L5]3
NĘĢć£Íºĩ !aāD]HXRÔ½§ !RĥóYč`^L5]3×Ã ÚQ2Ġ±¶R@ ÌQZ\2dg{ç§NBLĥóA^H©īĬºĩßQÑA^H ,$ !-12-