The RI Beams from the Tokai Radioactive Ion Accelerator Complex (TRIAC)

CollaboratorA. Osa, S. Abe, T. Asozu, S. Hanashima, T. Ishii, N. Ishizaki, H. Kabumoto, K. Kutsukake, M. Matsuda, M. Nakamura, T. Nakanoya, Y. Otokawa, H. Tayama, Y. TsukihashiJapan Atomic Energy Agency (JAEA), Tokai, Japan

S. Arai, H. Ishiyama, N. Imai, M. Okada, M. Oyaizu, S.C. Jeong, K. Niki, Y. Hirayama, Y. Fuchi, H. Miyatake,Y.X. Watanabe, High Energy Accelerator Research Organization (KEK), Tsukuba, Japan

JAEA-Tandem facilityCompletionJAEA-Tandem AcceleratorAug. 1982 Superconducting BoosterSep. 1994 TRIACMar. 2005 TRIAC1.1MeV/uSuperconducting BoosterVacc=30MVTandem AcceleratorVT=18MV (MODEL 20 UR)

Usage of beam times in FY2008Operation of TRIAC: 23daysNuclear physicsMaterial ScienceAccelerator development

Graph7

210

15

67

7

11

55

Shutdown 55days/ 15.1%

Cancel11days/ 3.0%

Maintenance(unscheduled) 7days/1.9%

Operation210days/ 57.5%

Conditioning 15days/ 4.1%

Maintenance (scheduled)67days/ 18.4%

Sheet1

()R2R1RNB

4/1/08HS-5FC04RNB07J011000101

4/2HS-5FC041000101

4/358NiS-3H1/L407SP01/07BD10110000100.50.5

4/419FS-5R2()110100101

4/519FS-5R2()110100101

4/619FS-5R2()110100101

4/716OTISH2BD01110000101

4/816OTISH2BD01110000101

4/990Zr/136XeS4/TISL2110000101

4/1016OS4H5NC04110000101

4/1112CS3R2NC06a-g110100101

4/1212CS3R2NC06a-g110100101

4/1312CS3R2NC06a-g110100101

4/147LiS5R1-RNB07-K041100101011

4/157LiS5R1-RNB07-K041100101011

4/167LiS5R1-RNB07-K041100101011

4/177LiS5R1-RNB07-K041100101011

4/1812CS3R2NC06a-g110100101

4/1912CS3R2NC06a-g110100101

4/2012CS3R2NC06a-g110100101

4/2156FeS5H1SC02110000101

4/22000001

4/23136XeTISH1BD05110000101

4/24136XeTISH1BD05110000101

4/2532SS3L3SC03110000101

4/2632SS3L3SC03110000101

4/2732SS3L3SC03110000101

4/28000100

4/29000100

4/30000100

5/118OS5R2NC13Cf In-beam g110100101

5/218OS5R2NC13Cf In-beam g110100101

5/318OS5R2NC13Cf In-beam g110100101

5/418OS5R2NC13Cf In-beam g110100101

5/518OS5R2NC13Cf In-beam g110100101

5/618OS5R2NC13Cf In-beam g110100101

5/7197AuS3H1SP02110000101

5/8136XeTISL2SC01110000101

5/912CS5R2NC05110100101

5/1012CS5R2NC05110100101

5/1112CS5R2NC05110100101

5/1222Ne/40ArTISL4BD10110000101

5/1319FS3R1-RNBR&D1100101011

5/1419FS3R1-RNBR&D1100101011

5/1556FeS5H1SC02110000101

5/16000001

5/17000001

5/18000001

5/19000001

5/20Tank Open000001

5/21000001

5/22000001

5/23000001

5/24000001

5/25000001

5/26000001

5/27000001

5/28000001

5/29000001

5/30000001

5/31000001

6/1000001

6/2000001

6/3000001

6/4000001

6/5000001

6/6000001

6/7000001

6/8000001

6/9000001

6/10000001

6/11000001

6/12000001

6/13000001

6/14000001

6/15000001

6/16000001

6/17000001

6/18000001

6/19000001

6/20000001

6/21000001

6/22000001

6/23000001

6/24000001

6/25000001

6/26Tank close000001

6/27gas filling000001

6/28000001

6/29000001

6/30000100

7/11000101

7/2000100

7/3000100

7/4000100

7/5000001

7/6000001

7/7000001

7/8000001

7/91000101

7/101000101

7/111000101

7/12000001

7/13000001

7/14197AuS4H1SC02110000101

7/157LiS5R1R&D110010101

7/1619FS3R208NP01110100101

7/17136XeTISH108SP02110000101

7/187LiS5R1-RNBRNB08J031100101011

7/197LiS5R1-RNBRNB08J031100101011

7/207LiS5R1-RNBRNB08J031100101011

7/217LiS5R1-RNBRNB08K071100101011

7/227LiS5R1-RNBRNB08K071100101011

7/23000001

7/24HTISR2AD04110100101

7/2530SiS5L3NC09110000101

7/2630SiS5L3NC09110000101

7/2730SiS5L3NC09110000101

7/281000101

7/2931PS3L2AD11110000101

7/3011BS3L2AD11110000101

7/31136XeTISL2SC03110000101

8/118OS5BAAD07110000101

8/218OS5BAAD07110000101

8/318OS5BAAD07110000101

8/4136XeTISL4SC07110000101

8/5HTISR2AD05110100101

8/632SS4L3AD06110000101

8/732SS4L3AD06110000101

8/886KrTISBB+NC08110000101

8/986KrTISBB+NC08110000101

8/1086KrTISBB+NC08110000101

8/11195PtS4L2/H1AD12/SC02/110000100.50.5

8/12197AuS3L2/H1AD12/SC02/110000100.50.5

8/13000001

8/14000001

8/15000001

8/16000001

8/17000001

8/18000001

8/1916OTISL2AD12110000101

8/2018OS5R2NP02110100101

8/21136XeTISH1SP02110000101

8/227LiS5R1-RNBRNB08J011100101011

8/237LiS5R1-RNBRNB08J011100101011

8/247LiS5R1-RNBRNB08J011100101011

8/25136XeTISL2SC03110000101

8/26136XeTISL2SC03110000101

8/271000101

8/2876GeS3BBNC08110000101

8/2976GeS3BBNC08110000101

8/3076GeS3BBNC08110000101

8/3176GeS3BBNC08110000101

9/17LiS5R1-RNBRNB08K041100101011

9/27LiS5R1-RNBRNB08K041100101011

9/37LiS5R1-RNBRNB08K041100101011

9/47LiS5R1-RNBRNB08K041100101011

9/532SS3L3SC06110000101

9/632SS3L3SC06110000101

9/732SS3L3SC06110000101

9/87LiS5R1-RNBR&D1100101011

9/968ZnS5BA+AD02110000101

9/1068ZnS5BA+AD02110000101

9/1112CS4R2NC10110100101

9/12124XeTISBCNC03110000101

9/13124XeTISBCNC03110000101

9/14124XeTISBCNC03110000101

9/15124XeTISBCNC03110000101

9/1619FS5R2NC04110100101

9/1719FS5R2NC04110100101

9/1816OTISL2AD11110000101

9/19HS4R1AD09110010101

9/20HS4R1AD09110010101

9/21HS4R1AD09110010101

9/2258NiS3H1/L4SP01/AD13SP01110000100.50.5

9/23000001

9/2431PS5L2AD11110000101

9/25000001

9/26HS4R1AD09110010101

9/27HS4R1AD09110010101

9/28HS4R1AD09110010101

9/29HS4R1NP05110010101

9/30197Au/136XeS3H1SC05/SC02AD03/110000101

10/1136XeS3H1SC05AD03110000101

10/2HS5R1NP04110010101

10/3HS5R1NP04110010101

10/4HS5R1NP04110010101

10/5HS5R1NP04110010101

10/616OTISH2AD06110000101

10/716OTISH2AD06110000101

10/812CS3H1SP03110000101

10/918OS5BC07NC02110000101

10/1018OS5BC07NC02110000101

10/110001001

10/120001001

10/130001001

10/14000001

10/15Tank Open000001

10/16Tank Close000001

10/1732SS4L308SC06110000101

10/1832SS4L308SC06110000101

10/1932SS4L308SC06110000101

10/2058NiS4L408SC07AD13110000101

10/21197AuS4H108SP02110000101

10/22136XeTISL208SC04110000101

10/2312CS3R108NP03110010101

10/2419FS4R208NC04110100101

10/2519FS4R208NC04110100101

10/2619FS4R208NC04110100101

10/2716OBA07NC14110000101

10/2818OS4L3NP06110000101

10/2912CS3BC08NC02110000101

10/3012CS3BC08NC02110000101

10/3112CR207NC06110100101

11/112CR207NC06110100101

11/212CR207NC06110100101

11/312CR207NC06110100101

11/412CR207NC06110100101

11/5136XeTISL408AD13110000101

11/6136XeTISH108SP02110000101

11/718OS4BC07NC02110000101

11/818OS4BC07NC02110000101

11/918OS4BC07NC02110000101

11/1018OS4BC07NC02110000101

11/1118OS4BC07NC02110000101

11/1219FS3R107AD09110010101

11/13000001

11/14000001

11/15000001

11/16000001

11/17000001

11/18000001

11/19000001

11/20000001

11/21000001

11/22000001

11/23000001

11/24000001

11/25000001

11/26000001

11/27000001

11/28000001

11/29000001

11/30000001

12/1000001

12/2000001

12/3000001

12/4000001

12/5000001

12/6000001

12/7000001

12/8000001

12/9000001

12/10000001

12/11000001

12/12000001

12/13000001

12/14000001

12/15000001

12/16000001

12/17Tank Close000001

12/18Gas filling000001

12/19000100

12/20000001

12/21000001

12/22000001

12/23000001

12/24000100

12/25000100

12/26000100

12/27000001

12/28000001

12/29000001

12/30000001

12/31000001

1/1/09000001

1/2000001

1/3000001

1/4000001

1/5000001

1/6000001

1/7000001

1/8000100

1/9000100

1/10000001

1/11000001

1/12000001

1/131000101

1/14000001

1/151000101

1/1616OS4R208NC06110100101

1/1716OS4R208NC06110100101

1/1816OS4R208NC06110100101

1/19136XeTISL408BD13110000101

1/20136XeTISL408BD13110000101

1/21136XeTISL208SC03110000101

1/22HS5R1-RNBR&D1100101011

1/23HS5R1-RNBR&D1100101011

1/24HS5R1AD09110010101

1/25HS5R1AD09110010101

1/2612CS4R208NC06110100101

1/27197AuS4H108SC01110000101

1/28000001

1/29136XeTISH108SP02110000101

1/30NTISH208AD06110000101

1/31NTISH208AD06110000101

2/1NTISH208AD06110000101

2/219FS4R208NP01110100101

2/31000101

2/41000101

2/5HTISR208AD05110100101

2/619FS4R1RNB07K06110010101

2/719FS4R1RNB07K06110010101

2/819FS4R1RNB07K06110010101

2/912CS3R208NC06110100101

2/1012CS3H108SP03110000101

2/11000001

2/127LiS5R1-RNBRNB08J031100101011

2/137LiS5R1-RNBRNB08J031100101011

2/14RNB10001001

2/15RNB10001001

2/161000100

2/17110010101

2/181000100

2/19136XeTISH108SP02110000101

2/2040ArTISL308NC09110000101

2/2140ArTISL308NC09110000101

2/2240ArTISL308NC09110000101

2/23000001

2/24000001

2/2586KrTISBB+08NC08110000101

2/26HS4R108NP05110010101

2/2731PS5L309NC02110000101

2/2831PS5L309NC02110000101

3/131PS5L309NC02110000101

3/216OTISH208AD06110000101

3/316OTISH208AD06110000101

3/458NiS3BA+08NC08110000101

3/536SS5L208SC04110000101

3/6HS4R108NP04110010101

3/7HS4R108NP04110010101

3/8HS4R108NP04110010101

3/9136XeTISL408SC07110000101

3/1036SS5BC08NC01110000101

3/11197AuS3H108SP02110000101

3/12136XeTISL208BD02110000101

3/1319FS4R208NC04110100101

3/1419FS4R208NC04110100101

3/1519FS4R208NC04110100101

3/1610001001

3/171000001

3/181000001

3/191000001

3/201000001

3/211000001

3/221000001

3/2314NTISH208AD06110000101

3/2414NTISH208AD06110000101

3/2519FS4R208NC10110100101

3/26136XeTISH108SC05110000101

3/2782KrTISBB+07NP02110000101

3/2810001001

3/2910001001

3/3010001001

3/3110001001

1972131344461115414412523

686

29.4583333333

2109641

152210211.5416666667

6733TRIAC23

73344

1170.19523809520.20952380950.5952380952

55RNB6

36513

210

Sheet1

0

0

0

0

0

0

55/ 15.1%

11/ 3.0%

7/1.9%

210/ 57.5%

15/ 4.1%

67/ 18.4%

Sheet2

0

0

0

0

0

0

0

96/ 45.7%

22/ 10.5%

33/ 15.7%

33/ 15.7%

7/ 3.3%

RNB 6/ 2.9%

13/ 6.2%

Sheet3

0

0

0

0

TRIAC 23 11.0%

41/ 19.5%

102/ 48.6%

44/ 21.0%

Graph3

96

22

40

33

19

Nuclear Physics96days/45.7%

Nuclear Chemistry22days/10.5%

Material Science40days/19.0%

Radiation Effect33days/15.7%

Accelerator Development19days/9.0%

Sheet1

()R2R1RNB

4/1/08HS-5FC04RNB07J011000101

4/2HS-5FC041000101

4/358NiS-3H1/L407SP01/07BD10110000100.50.5

4/419FS-5R2()110100101

4/519FS-5R2()110100101

4/619FS-5R2()110100101

4/716OTISH2BD01110000101

4/816OTISH2BD01110000101

4/990Zr/136XeS4/TISL2110000101

4/1016OS4H5NC04110000101

4/1112CS3R2NC06a-g110100101

4/1212CS3R2NC06a-g110100101

4/1312CS3R2NC06a-g110100101

4/147LiS5R1-RNB07-K041100101011

4/157LiS5R1-RNB07-K041100101011

4/167LiS5R1-RNB07-K041100101011

4/177LiS5R1-RNB07-K041100101011

4/1812CS3R2NC06a-g110100101

4/1912CS3R2NC06a-g110100101

4/2012CS3R2NC06a-g110100101

4/2156FeS5H1SC02110000101

4/22000001

4/23136XeTISH1BD05110000101

4/24136XeTISH1BD05110000101

4/2532SS3L3SC03110000101

4/2632SS3L3SC03110000101

4/2732SS3L3SC03110000101

4/28000100

4/29000100

4/30000100

5/118OS5R2NC13Cf In-beam g110100101

5/218OS5R2NC13Cf In-beam g110100101

5/318OS5R2NC13Cf In-beam g110100101

5/418OS5R2NC13Cf In-beam g110100101

5/518OS5R2NC13Cf In-beam g110100101

5/618OS5R2NC13Cf In-beam g110100101

5/7197AuS3H1SP02110000101

5/8136XeTISL2SC01110000101

5/912CS5R2NC05110100101

5/1012CS5R2NC05110100101

5/1112CS5R2NC05110100101

5/1222Ne/40ArTISL4BD10110000101

5/1319FS3R1-RNBR&D1100101011

5/1419FS3R1-RNBR&D1100101011

5/1556FeS5H1SC02110000101

5/16000001

5/17000001

5/18000001

5/19000001

5/20Tank Open000001

5/21000001

5/22000001

5/23000001

5/24000001

5/25000001

5/26000001

5/27000001

5/28000001

5/29000001

5/30000001

5/31000001

6/1000001

6/2000001

6/3000001

6/4000001

6/5000001

6/6000001

6/7000001

6/8000001

6/9000001

6/10000001

6/11000001

6/12000001

6/13000001

6/14000001

6/15000001

6/16000001

6/17000001

6/18000001

6/19000001

6/20000001

6/21000001

6/22000001

6/23000001

6/24000001

6/25000001

6/26Tank close000001

6/27gas filling000001

6/28000001

6/29000001

6/30000100

7/11000101

7/2000100

7/3000100

7/4000100

7/5000001

7/6000001

7/7000001

7/8000001

7/91000101

7/101000101

7/111000101

7/12000001

7/13000001

7/14197AuS4H1SC02110000101

7/157LiS5R1R&D110010101

7/1619FS3R208NP01110100101

7/17136XeTISH108SP02110000101

7/187LiS5R1-RNBRNB08J031100101011

7/197LiS5R1-RNBRNB08J031100101011

7/207LiS5R1-RNBRNB08J031100101011

7/217LiS5R1-RNBRNB08K071100101011

7/227LiS5R1-RNBRNB08K071100101011

7/23000001

7/24HTISR2AD04110100101

7/2530SiS5L3NC09110000101

7/2630SiS5L3NC09110000101

7/2730SiS5L3NC09110000101

7/281000101

7/2931PS3L2AD11110000101

7/3011BS3L2AD11110000101

7/31136XeTISL2SC03110000101

8/118OS5BAAD07110000101

8/218OS5BAAD07110000101

8/318OS5BAAD07110000101

8/4136XeTISL4SC07110000101

8/5HTISR2AD05110100101

8/632SS4L3AD06110000101

8/732SS4L3AD06110000101

8/886KrTISBB+NC08110000101

8/986KrTISBB+NC08110000101

8/1086KrTISBB+NC08110000101

8/11195PtS4L2/H1AD12/SC02/110000100.50.5

8/12197AuS3L2/H1AD12/SC02/110000100.50.5

8/13000001

8/14000001

8/15000001

8/16000001

8/17000001

8/18000001

8/1916OTISL2AD12110000101

8/2018OS5R2NP02110100101

8/21136XeTISH1SP02110000101

8/227LiS5R1-RNBRNB08J011100101011

8/237LiS5R1-RNBRNB08J011100101011

8/247LiS5R1-RNBRNB08J011100101011

8/25136XeTISL2SC03110000101

8/26136XeTISL2SC03110000101

8/271000101

8/2876GeS3BBNC08110000101

8/2976GeS3BBNC08110000101

8/3076GeS3BBNC08110000101

8/3176GeS3BBNC08110000101

9/17LiS5R1-RNBRNB08K041100101011

9/27LiS5R1-RNBRNB08K041100101011

9/37LiS5R1-RNBRNB08K041100101011

9/47LiS5R1-RNBRNB08K041100101011

9/532SS3L3SC06110000101

9/632SS3L3SC06110000101

9/732SS3L3SC06110000101

9/87LiS5R1-RNBR&D1100101011

9/968ZnS5BA+AD02110000101

9/1068ZnS5BA+AD02110000101

9/1112CS4R2NC10110100101

9/12124XeTISBCNC03110000101

9/13124XeTISBCNC03110000101

9/14124XeTISBCNC03110000101

9/15124XeTISBCNC03110000101

9/1619FS5R2NC04110100101

9/1719FS5R2NC04110100101

9/1816OTISL2AD11110000101

9/19HS4R1AD09110010101

9/20HS4R1AD09110010101

9/21HS4R1AD09110010101

9/2258NiS3H1/L4SP01/AD13SP01110000100.50.5

9/23000001

9/2431PS5L2AD11110000101

9/25000001

9/26HS4R1AD09110010101

9/27HS4R1AD09110010101

9/28HS4R1AD09110010101

9/29HS4R1NP05110010101

9/30197Au/136XeS3H1SC05/SC02AD03/110000101

10/1136XeS3H1SC05AD03110000101

10/2HS5R1NP04110010101

10/3HS5R1NP04110010101

10/4HS5R1NP04110010101

10/5HS5R1NP04110010101

10/616OTISH2AD06110000101

10/716OTISH2AD06110000101

10/812CS3H1SP03110000101

10/918OS5BC07NC02110000101

10/1018OS5BC07NC02110000101

10/110001001

10/120001001

10/130001001

10/14000001

10/15Tank Open000001

10/16Tank Close000001

10/1732SS4L308SC06110000101

10/1832SS4L308SC06110000101

10/1932SS4L308SC06110000101

10/2058NiS4L408SC07AD13110000101

10/21197AuS4H108SP02110000101

10/22136XeTISL208SC04110000101

10/2312CS3R108NP03110010101

10/2419FS4R208NC04110100101

10/2519FS4R208NC04110100101

10/2619FS4R208NC04110100101

10/2716OBA07NC14110000101

10/2818OS4L3NP06110000101

10/2912CS3BC08NC02110000101

10/3012CS3BC08NC02110000101

10/3112CR207NC06110100101

11/112CR207NC06110100101

11/212CR207NC06110100101

11/312CR207NC06110100101

11/412CR207NC06110100101

11/5136XeTISL408AD13110000101

11/6136XeTISH108SP02110000101

11/718OS4BC07NC02110000101

11/818OS4BC07NC02110000101

11/918OS4BC07NC02110000101

11/1018OS4BC07NC02110000101

11/1118OS4BC07NC02110000101

11/1219FS3R107AD09110010101

11/13000001

11/14000001

11/15000001

11/16000001

11/17000001

11/18000001

11/19000001

11/20000001

11/21000001

11/22000001

11/23000001

11/24000001

11/25000001

11/26000001

11/27000001

11/28000001

11/29000001

11/30000001

12/1000001

12/2000001

12/3000001

12/4000001

12/5000001

12/6000001

12/7000001

12/8000001

12/9000001

12/10000001

12/11000001

12/12000001

12/13000001

12/14000001

12/15000001

12/16000001

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1972131344461115414412523

686

29.4583333333

210Nuclear Physics9641

15Nuclear Chemistry2210211.5416666667

67Material Science40TRIAC23

7Radiation Effect3344

11Accelerator Development190.19523809520.20952380950.5952380952

55

365

210

Sheet1

210

15

67

7

11

55

55/ 15.1%

11/ 3.0%

7/1.9%

210/ 57.5%

15/ 4.1%

67/ 18.4%

Sheet2

96

22

40

33

19

96/ 45.7%

22/ 10.5%

33/ 15.7%

33/ 15.7%

7/ 3.3%

RNB 6/ 2.9%

13/ 6.2%

Sheet3

41

102

23

44

TRIAC 23 11.0%

41/ 19.5%

102/ 48.6%

44/ 21.0%

Upgrade of JAEA-Tandem facilityReplacement of acceleration tubes Replacement of 180-degree analyzing magnet at the high-voltage terminalReplacement of in-terminal ion source to a permanent-magnet type 14.5 GHz ECR ion source, SUPERNANOGANTreatment of degraded superconducting resonators Fabrication of a prototype low beta superconducting twin quarter wave resonator (low-b twin-QWR)

Performance of JAEA-Tandem AcceleratorTerminal voltage2.5~18MVBeam current limit(official license)H, D: 3 mA (>20 MeV), 10 mA(

Upgrade of JAEA-Tandem FacilityReplacement of acceleration tubes Initial performance of the maximum terminal voltage, VT =17MV, got worse for years.Replaced to compressed geometry tubes for the improvement of VT up to 18-20 MVCompressed type 42gap/MVOriginal type 33gap/MVReplaced at Jun. 2003UltrasonicCleaningHigh-pressure Water-jet RinseBaking in vacuumUltrapure water200oC, 2 weeksFilled with N2 gas to store Compressed AirRemove micro-particles on the inside tube wall Reduce the conditioning timeVT=18MV

Upgrade of JAEA-Tandem FacilityRecover of Superconducting Resonator HPWRWater flow: 6 l/m, Pressure: 6~8 MPaTo remove small contaminations on the surface of niobium, treatment of superconducting resonators by using High-Pressure Water jet Rinse (HPWR) was carried out. The acceleration electric field (Eacc) of superconducting cavities decreases to 4MV/m. CavityRotating nozzle

Upgrade of JAEA-Tandem FacilityReplacement of in-terminal ECRIS Ion beamHigh Energy sideLow Energy sideIon pumpAperture& Faraday cup14.5GHz ECRISElectrostatic quadrupole triplet lens(10GHz ECRIS)180o bending magnetFaraday cupPre-acceleration tubeTurbo Molecular pump90o injection magnetSUPERNANOGAN(2007~)NANOGAN(1998~)HIAT 8th Matsuda et al.Xe30+ has been accelerated. 14.5GHz ECRIS10GHz ECRIS

Tokai Radioactive Ion Accelerator Complex (TRIAC)Layout of TRIACIon sourceISOLPrimary beam from Tandem AcceleratorRadioactive nuclear beamTandem AcceleratorBoosterTandem Accelerator: Primary beam Driver to ISOLIon source RI production and ionizationISOL: RI separator and injector to TRIACH+32MeV ~1mA7Li3+64MeV ~200 pnA

Danfysik 9000-T (ISOLDE type)Resolving power: 1200ISOL ISPrimary beamMass separationJAEA-ISOL

JAEA-ISOLSafety Handling System of Target-Ion source Module Shielding cellCarrying system

Tokai Radioactive Ion Accelerator Complex (TRIAC)Layout of TRIACIon sourceISOLPrimary beam from Tandem AcceleratorRadioactive nuclear beamTandem AcceleratorCB-ECRISBoosterTandem Accelerator: Primary beam Driver to ISOLIon source RI production and ionizationISOL: RI separator and injector to TRIAC

CB-ECRIS: Charge-breed 1+ ion to q+ ionH+32MeV ~1mA7Li3+64MeV ~200 pnA

Tokai Radioactive Ion Accelerator Complex (TRIAC)18 GHz ECRIS as the charge breeder1+-ionfrom ISOLVacc=VCBq+-ionVCB=2A/q kVto SCRFQmicro wave: f=18 GHz, P=1 kW movabledecelerationelectrodes

mirror coils: Bmax/ Bmin ~1.5 /0.4 Tcorrection coil: Bmax~0.4 Tsextupole magnet: length=300mm fin=82.5 mm Bmax~1.1 T at 75mmf

Tokai Radioactive Ion Accelerator Complex (TRIAC)Layout of TRIACSCRFQIon sourceISOLExperimental ApparatusPrimary beam from Tandem AcceleratorRadioactive nuclear beamTandem AcceleratorIH linacCB-ECRISBoosterTandem Accelerator: Primary beam Driver to ISOLIon source RI production and ionizationISOL: RI separator and injector to TRIAC

CB-ECRIS: Charge-breed 1+ ion to q+ ionSCRFQ-linac: Accelerate to 0.17MeV/uIH-linac: Accelerate to 1.1MeV/uH+32MeV ~1mA7Li3+64MeV ~200 pnA

Tokai Radioactive Ion Accelerator Complex (TRIAC)Performance of LinacsSplit-coaxial-RFQ (SCRFQ) linac Very compact (diameter = 0.9m) RF frequency25.96MHz Input energy2.1keV/u Output energy178kev/u (A/q28) Transmission>90% Vane length8.6mInter-digital H (IH) linac 4 cavity tanks, 3 magnetic-quadrupole triplets RF frequency51.92MHz Input energy178keV/u Output energy0.14-1.09MeV/u (A/q9) Total length5.6mTotal transmission of two linacs~85%Duty factor20% 100%BeamSCRFQIH-linac

Development of Target-Ion Source SystemSchematic view of Target-Ion Source systemsUCx targetT=2100oCT=1600oCAlkali, alkaline earth, and rare-earth elements Gaseous and volatile elementsWe could not observe short-lived isotopes of In, Sn.

Outlooks FEBIAD-E + Target container (>2000C) Short release time is expected.Development of Target-Ion Source System U-FEBAID-E Ion SourceOn-line test is in progress.U-FEBIAD-B2 (1600oC) Separation efficiencies were miserably decreased for short-lived isotopes. We could not observe short-lived isotpes of In, Sn

Development of Target-Ion Source SystemSurface Ionization IS for Heavy ion reaction8Li7Li99% enriched 13C sintered pellet target9Li(T1/2=178 ms) ~102 ppsRequest: >5 x 103 ppsIncrease a target weightIncrease a beam energy/currentIncrease a release speed?Measurement of Li diffusion coefficients in Li ionic conductors

Search of highly excited state of 10Be using deuteron elastic reaction to 8Li

Search of highly excited state of 11Be using deuteron elastic reaction to 9Li13C(7Li, 8Li) 7Li3+ beam 67MeV ~100 pnA1 x 106 ions/s W-window

Development of Target-Ion Source SystemRelease profile of LiSeparation yield of 8Li/9LiRelease profile of Li byHeavy ion implantation techniqueA 99% enriched 13C sintered pellet target8Li: ~105 ions/s @100pnA 7Li9Li: ~102 ions /s @100pnA 7LiBN Hot pressed sheet target 8Li: ~105 ions/s @100pnA 7Li9Li: ~104 ions/s @100pnA 7Li

OUTLOOKContinuous upgrade enabled JAEA-Tandem facility to deliver a variety beams for experiments. Until now, TRIAC facility provides relatively weak intensity and low energy RNBs. However, we have produced good results by using 8Li beam which is specialty of TRAIC facility. It is expected to allow furtherapplications and progresses especially by use of the RNBs of medium-heavy neutron-rich isotopes. Development of the target-ion source system is one of the highest priority issues on operation of RNB facility. We will carry on the development for the facility.

Thank you for your attention.

In-terminal ECRIS: SUPERNANOGANAcceleration results and performance

Development of Target-Ion Source SystemRelease profile of LiSeparation yield of 8Li/9LiA 99% enriched 13C sintered pellet target8Li: ~105 ions/s @100pnA 7Li9Li: ~102 ions /s @100pnA 7LiBN Hot pressed sheet target 8Li: ~105 ions/s @100pnA 7Li9Li: ~104 ions/s @100pnA 7Li

Thickness dependenceRelease time0.6mmttfast=1.9s0.2mmttfast=120msSeparation yieldThe ratio 9Li/8Li~1/10 did not change !!Release profile of Li byHeavy ion implantation techniqueImproved

Application by use of 8Li beamProfile of 8Li beamBeam spot size ~ 7 mmf (FWHM)

Energy resolution ~ 2 % (FWHM)FWHM : 3.8%@ TRIACEnergy (MeV)Yields

Application by use of 8Li beamDiffusion Study8Li beam(~0.3MeV/u)Pulsed beam(On/Off=1.5s/4.5s)Decay-aSSDsampleTime spectrum of detected alphas: Diffusion and lifetime of 8LiS.C. Jeong et al., Nucl. Instrum. Meth. B230(2005)596.Non-destructive measurement of diffusionRapid diffusion mechanism of Li-ions in the super ionic conductor materials

Tilted foil method 1. Asymmetric electron transfer Atomic Polarization PRL47(81)487 2. Hyper-fine interaction Atomic Nuclear Polarization

Application by use of 8Li beamProduction of Polarized RNBs b-decay spectroscopy of spin-polarized RNBNuclear electro-magnetic momentsapplication for material science12B (t1/2=20.2ms, Ip=1+)carbon foil 10mg/cm2@60 deg. E=83 keV/u~ 0.013c( PRL 51 (83) 180)How about higher energy ? heavier nuclei ?

Application by use of 8Li beamExperiment of polarization of 8Li10 tilted foils @ 70 deg.8Li beamcarbon foil: 10mg/cm2 ~ 45 nmpolystyrene foil: 10~30 nm14mm42mmFeasibility study of tilted foil method with 8Li (Ip=1+ T1/2=838ms)Spectroscopy of polarized RNBs around 132Sn Y. Hirayama et al.

*Thank you for inviting me to HIAT09 and giving me an opportunity to report the present status of our RNB facility.

In this talk, I will introduce Tandem accelerator facility at Japan Atomic Energy Agency, JAEA at Tokai, Japan

and an ISOL based RNB facility Tokai Radioactive Ion Accelerator Complex, named as TRIAC.*This RNB project is operating under the collaboration between Japan Atomic Enegy Agency, JAEA, and High Energy Accelerator Research Organization, KEK.

Here is the collaborators. *Now, This is a layout of the JAEA-Tandem facility building.You can find the Tandem accelerator and superconducting booster linac here.Isotope separator on-line, ISOL, is installed here.TRIAC is connected to this ISOL*In financial year 2000-8, we operated the tandem accelerator 200 and 10 days. It is largely achieved as planed. Usage of beam times is here.

Radioactive nuclear beams are supplied by TRIAC for 23 days to study Nuclear physics, Material science and RNB development.

*As show in this table, tandem accelerator is not powerful accelerator as a driver for RNB facility.In addition, JAEA-Tandem Accelerator was installed more than a quarter-century ago. So, we have to routinely maintain and upgrade the accelerator and devices.

In last few years, we upgraded the devices listed here. Now, I briefly introduce some of them.

*We replaced degraded old acceleration tubes to compressed geometry tubes.

Before replacement, we cleaned the tubes by High-pressure Water-jet rinse.

The goal to operate at full performance, terminal voltage 20 MV, was only imperfectly achieved. But, the terminal voltage was clearly improved to 18 MV. *By using the High-pressure Water-jet rinse, we treated the degraded Superconducting Resonator of the Booster.

After this treatment, acceleration electric fields were recovered. *We replaced in-terminal ion source to ECR ion source, nanogan, in 19-98.It was reported in the 8th HIAT conference.

In 2000-5, we removed nanogan from high energy side to low energy side.In this position, we can use 1-80 degree bending magnet in the top of terminal, as a analyzing magnet.

The analyzing power makes easier for the separation of ions. In addition, it enables to bend and accelerate low-charged heavy ions.

In 2000-7, we replaced nanogan by supernanogan.Beam intensities have been increased 3-5 times compared to the previous 10-GHz one. We have even accelerated Xe30+ from the high-voltage terminal. *Let me switch my talk to the TRIAC. At the TRIAC, primary stable beams are supplied by the JAEA tandem accelerator.

Radioactive nuclei are produced here, by the proton induced uranium fissions or by other reactions like transfer or fusion of the heavy ion beams.The produced radioactive nuclei are ionized to singly charged ions and mass-separated by this JAEA-ISOL.*Here is a photo of the JAEA ISOL.

Primary beam comes from here and hits the production target in this target-ion source module. To extract radioactive nuclei as singly charged ions, we have used two kinds of ions source, FEBIAD type and surface ionization type.

The mass separator is ISOLDE type and its mass resolving power is about 12-00.

*This is an another photo of around the target module of the JAEA-ISOL.This ISOL was installed 25 years ago for the study of decay spectroscopy. In this usage, we did not need special device to handle an ion source.

At this time, our available beam power is up to about 30 watt. After an irradiation for 3 days, Even though such a small beam power is used, the irradiated target module is so high-radioactive to access directly.

So, the used module is removed from the on-line position by this carrying system. And it is stored also remotely to this shielding cell.After several weeks storage, the module is reconstructed to be used again.

*Lets return to Layout.

To accelerate heavy radioactive ions, we have to increase their charge states. Then, we have developed the ECR-Ion source as the charge breeder, which convert the singly charged ion to multi-charged ions.

*The operation parameter of CB-ECRIS are shown here.RF frequency is 18 GHz, and its power is as much as 1 kW.

After the cooking time about 60 ms, multi-charged ions are extracted towards the linac complex. Kinetic energy of extracted ions are set to be 2 keV/n.

It should be noted that this plasma chamber is larger than the typical ECR IS. The inner diameter is 75mm and the volume is 1.3 L.

The large volume was designed to accept the injection of the intense RNBs and to increase atomic collisions of / injected ions / to the support gas atoms / before reaching the chamber wall.

*The multi-charged ions are transported to these two linacs, called as SCRFQ and IH-linac. By using this linac complex, the energy of RNB will be accelerated from 2keV/nucleon to 1.1MeV/nucleon.

*Here is the schematic view of linac complex, one is a split-coaxial radio-frequency quadrupole linacAnd the other is an inter digital H-type linac.

The SCRFQ is characterized by its compact size. The diameter is as small as 0.9m, which is a half of the usual RFQ of the same frequency. RF frequency is 26 MHz.

The input energy of 2 keV/nucleon is accelerated to 180 keV/nucleon. Transmission of this linac is higher than 90%.

IH linac is composed of 4 cavity tanks and 3 magnetic quadrupole triplets. RF frequency is 52 MHz.

By tuning the RF phase and amplitude for each tank, output energy can be changed continuously from 140 keV/nucleon to 1.1 MeV/nucleon.

The total transmission of this linac complex is about 85 %. Duty factor of this linac can be changed from 20% to 100% and now we can operate full duty.

*Acceleration of medium-heavy neutron-rich isotopes produced by proton induced fission is a one of our motivations for TRIAC.Tandem accelerator is not powerful driver. So We have to increase efficiencies of other part of the facility. Especially, target and ion source.These drawings show our surface ionization ion source and FEBIAD one with uranium target.

UC-target is set at here and here.

Using these ion sources, medium-heavy neutron-rich isotopes of alkali, alkaline earth, and rare-earth elements Gaseous and volatile elements are ionized.

Typical work temperature of FEBIAD-B2 and the target container is 16-00 degree, while one of Surface Ionization type is 21-00 degree. Unfortunately, we could not observed short-lived isotopes of indium and tin by this FEBIAD ion source.*As I told you, FEBIAD-B2 type ion source is operated at the temperature of 16-00 degree and the separation efficiencies were miserably decreased for short-lived ion source. We develop high temperature FEBIAD-E type ion source coupled with thick target container.FEBIAD-E is compact compared with FEBIAD-B2, and heated up to about two thousands degree.In addition, we modified target container that can be loaded with stacked disk target. Heating method for target container is also changed to radiation and electron bombardment heating that is the same method for surface ionization ion source. With this heating method, target container is also heated up to about two thousands degree.So, with this target/ion source system, short release time is expected.

Measurement of release profiles of several elements are in progress. *Until now, TRIAC facility provides relatively weak intensity and low energy RNB of medium heavy neutron-rich isotopes. However, we have produced good results by using Li-8 beam: We think it is specialty of TRAIC facility. For the production of Li-8, we have chosen neutron transfer reaction by Li-7 primary beam and a 99% enriched C-13 sintered pellet target. The target was mounted to the catcher position of the ion source with 3-micro -m thick tungsten-window. The target was bombarded with a 67-MeV 7Li3+ beam with intensity of about 100 pnA. In this condition, the separation yield of Li-8 was evaluated to be 1 x 10 to the 6th ions/s. A short-lived isotope beam, Li-9, is required with intensity of more than 5 x 10 to the third ions/s on the target at the end of TRIAC to the study of highly-excited state of Be-11. However, the separation yield of Li-9 (T1/2=178 ms) was reduced to 10 to second ions/s. How can we increase the intensity? We can not increase a target weight. We can not increase a beam energy and current. We thought that the long release time caused a significant loss of the Li-9 beam intensity.* A release profile of Li from the target/catcher/ion-source system was measured using the heavy ion implantation technique.

The fast component of release profile of Li ions from the C-13 sintered target was 3.2 s. It is too long to separate Li-9 from the target.

In a search for high-temperature-resistant target material for the production of Li-9, we found out that boron nitride (BN) has a short release time; the fast component release profile was 1-20 ms. With a hot pressed BN sheet target, we obtained a Li-9 beam with an intensity of 10 to the 4th ions/s after separation by JAEA-ISOL. *Finally, I remark some outlook.

Continuous upgrade enabled JAEA-Tandem facility to deliver a variety beams for experiments. Until now, TRIAC facility provides relatively weak intensity and low energy RNBs. However, we have produced good results by using 8Li beam which is specialty of TRAIC facility. It is expected to allow furtherapplications and progresses especially by use of the RNBs of medium-heavy neutron-rich isotopes. Development of the target-ion source system is one of the highest priority issues on operation of RNB facility. We will carry on the development for the facility. *** A release profile of Li from the target/catcher/ion-source system was measured using the heavy ion implantation technique. As shown in Figure 2, the fast component of release profile of Li ions from the 13C sintered target was 3.2 s. In a search for high-temperature-resistant target material for the production of 9Li, we found out that boron nitride (BN) has a short release time of Li; the fast component release profile was 120 ms. With a hot pressed BN sheet target, we obtained a 9Li beam with an intensity of 10 to 4th ions/s after separation by JAEA-ISOL. *Beam spot on the secondary target was measured to be 7 mm in diameter. It will be improved in the future development according to the experimental request.

The typical energy resolution was also measured to be as small as 2% in FWHM. This figure shows the energy spectrum of 8Li beam measured by SSD.Observed energy resolution of 3.8% was decomposed by taking account of the detector resolution.

*The first subject is an application of RNB to material science.

In this experiment, 8Li beams are implanted into the sample material like this figure. Just after the implantation, spatial distribution of Li in the sample is shown by the red line.After an appropriate time, the distribution becomes wider and wider by the diffusion of Li8 itself shown by these blue and green lines.

As you know, 8Li nucleus emits 2 alpha particles after the beta-decay.So, we can measure alpha particles by this SSD located in front of the sample, only when the 8Li particles diffuse near the surface of the sample.

The detected time spectrum of alpha particles is characterized by the diffusion and lifetime of 8Li.So, if you normalized the half life,you can extract the information of the 8Li diffsuion in the sample material.

This figure shows the normalized time spectrum for the case of the LiAl sample. As can be seen, the number of alpha particles increases just after the implantation at the high temperature of 150 and 300 celcius, compared to that of room temperature according to the Li diffusion.Namely non-destructive measurement of Li diffusion is realized.

The subject is applying this method to study an rapid diffusion mechanism of Li-ions in the super ionic conductor materials, which are newly created for the electrodes of li-ion battery. *Third subject is related to the development of the pin-polarized RNBs. It is well known that the nuclear spin polarization gives us a powerful tool with respect to the beta-decay spectroscopy, measurement of nuclear electro magnetic moments, and application to material science.

We are now applying the tilted foil technique to produce the spin-polarization, because this method can be applicable for any elements, although the achieved polarization may be small compared to the modern technique using laser.

This figure shows the schematic view of this method. In this method, the nuclear polarization is produced by two steps. When radioactive ions pass through the tilted foil, asymmetric electron capture is occured. As a result, these ions are polarized.

Then, through the hyper-fine interaction, the atomic polarization is transferred to the nuclear polarization.

This figure shows the first application of the tilted foil method reported about 20 years ago. 12B nucleus is successfully polarized by 5%.However, the incident energy is too low to get higher polarization by increasing number of foil, and experimental data on the heavier nuclei are scarce.

*To establish this method, we have performed a pilot experiment by using 8Li-RNB.The final goal of this subject is spectroscopy of polarized RNB around 132Sn.

This picture shows the experimental setup. 8Li beams are injected into the tilted foils.The tilt angle of these foils is 70 degrees with respect to the beam axis. This picture shows a front face of the carbon foil used in the experiment. The thickness of each foil is 10 microg/cm2. The polarization was measured by using beta-NMR technique as shown by this photo.

The energy of the incident 8Li-RNB was tuned to 178 keV/u. And here is a air core solenoid magnet to hold the direction of the polarization.

Here is the experimental result. We obtained the polarization as much as 4% with 10 foils. But, under this condition, the polarization have not reached to the saturation. Further test is scheduled at this year with more number of foils consisting of 10 to 30 nm thick polystylene. And we wil try to measure the spin-polarization of heavier isotopes.