Isochronous storage ring of the New SUBARU project

Ando, Atsushi; Amano, Sho; Hashimoto, Satoshi; Kinosita, H.; Miyamoto, Shuji; Mochizuki, T.; Niibe, Masahito; Shoji, Y.; Terasawa, M.; Watanabe, Tomoji; Kumagai, N.

doi:10.1107/s0909049597013150

Cited by 94 publications

(42 citation statements)

References 2 publications

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“…Therefore, all the photodisintegration reactions occur inside the sensitive volume, which enables us to detect low-energy charged particles over the full-solid angle. MAIKo was installed at the beam line 01 in the New SUBARU synchrotron radiation facility [8] shown in Fig. 2.…”

Section: Methodsmentioning

confidence: 99%

Measurement of ⁴He Photodisintegration with the MAIKo Active Target

Murata¹,

Adachi²,

Akimune³

et al. 2017

Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)

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The photodisintegration reactions of 4 He, i.e. 4 He(γ,pt) and 4 He(γ, 3 He)n, are expected to be a clue to the nucleosynthesis in the universe, but the results of previous experimental studies are still contradictory in low energy region. We measured these reactions with the TPC-based MAIKo active target at the New SUBARU synchrotron radiation facility. MAIKo enables us to measure the low-energy decay particles emitted over the full-solid angle. The quasi-monochromatic pulsed photon beams were irradiated on MAIKo during the measurement. The data analysis is still in progress. The photodisintegration events were selected using a new tracking algorithm developed for this measurement, and the total flux of photon beams was obtained by the NaI (Tl) beam monitor.

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Section: Methodsmentioning

confidence: 99%

Measurement of ⁴He Photodisintegration with the MAIKo Active Target

Murata¹,

Adachi²,

Akimune³

et al. 2017

Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016)

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“…2, the 8 GeV SPring-8 storage ring and the 1-1.5 GeV NewSUBARU storage ring (Ando et al, 1998) are both operated on the SPring-8 campus by time-sharing the 1 GeV beam from the linac. Fast switching of the beam routes between the two storage rings is thus necessary.…”

Section: Realisation Of Constant Stored Currentmentioning

confidence: 99%

Stable top-up operation at SPring-8

Tanaka

Adachi

Aoki

et al. 2006

J Synchrotron Radiat

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Top-up operation allows SPring-8 to provide highly stable X-ray beams with arbitrary filling patterns. The implementation of top-up operation is described, with a focus on the simultaneous achievement of stability of stored current, beam orbit, purity of an isolated single bunch, and beam injection efficiency. Stored-current fluctuations have been routinely reduced to a level of 10 À3 . Stored-beam oscillation on frequent beam injection, which was originally regarded as the most serious problem, has been successfully suppressed to a sufficiently low level that it never perturbs imaging experiments. Current impurities in nominally empty buckets have been reduced to a level of 10 À9 over more than one week of operation, making possible the measurement of timeresolved spectra using high-current bunches. Finally, excellent injection efficiency, higher than 80%, is routinely obtained, even for small undulator gaps, which is critical for preventing radiation damage to insertion-device magnets and to reduce leakage radiation. The process of achieving highly stabilized top-up operation at SPring-8 and its utility for user experiments are described.

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“…Next, threaded structure was formed on bar by X-ray lithography that uses synchrotron radiation. We used the beam line 11 of NewSUBARU synchrotron radiation facility at our university 2,10 . This was operated at energy of 1.5 GeV.…”

Section: Journal Of Advanced Mechanical Design Systems and Manufactmentioning

confidence: 99%

Formation of High Aspect Ratio Microcoil Using Dipping Method

Noda

Yamashita

Matsumoto

et al. 2008

JAMDSM

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Coils are used in many electronic devices as inductors in mobile units such as mobile phone, digital cameras, etc. Inductance and quality factor of coils are very important value of the performance. Therefore, the requests for coils are small size, high inductance, low power consumption, etc. However, coils are unsuitable for miniaturization because of its structure. Therefore, we have proposed and developed the microcoils of high aspect ratio with the dipping method and an X-ray lithography technique. In dipping method, centrifugal force and highly viscous photoresist solution were key points to evenly apply resist in the form of thick film on metal bar. The film thickness of resist on bar was achieved about 50 µm after single coating. Using these techniques, we succeeded in creating threaded groove structure with 10 µm lines and spaces on 1 mm brass bar. In this case, the aspect ratio was achieved five. It is very expected the high performance microcoil with high aspect ratio lines could be manufactured in spite of the miniature size.

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Isochronous storage ring of the New SUBARU project

Cited by 94 publications

References 2 publications

Measurement of ⁴He Photodisintegration with the MAIKo Active Target

Measurement of ⁴He Photodisintegration with the MAIKo Active Target

Stable top-up operation at SPring-8

Formation of High Aspect Ratio Microcoil Using Dipping Method

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Isochronous storage ring of the New SUBARU project

Cited by 94 publications

References 2 publications

Measurement of 4He Photodisintegration with the MAIKo Active Target

Measurement of 4He Photodisintegration with the MAIKo Active Target

Stable top-up operation at SPring-8

Formation of High Aspect Ratio Microcoil Using Dipping Method

Contact Info

Product

Resources

About

Measurement of ⁴He Photodisintegration with the MAIKo Active Target

Measurement of ⁴He Photodisintegration with the MAIKo Active Target