VACUUM PROTECTION SYSTEM USING AN INTERLOCKED FAST-CLOSING VALVE FOR A HIGH-POWER WIGGLER BEAM LINE

被引：10

作者：

KANAYA, N ^{[1
]}

SAKANAKA, S ^{[1
]}

SATO, S ^{[1
]}

KOIDE, T ^{[1
]}

ASAOKA, S ^{[1
]}

机构：

[1] TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 1990年 / 37卷 / 01期

关键词：

D O I：

10.1109/23.52602

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Calculations have been made using a finite-element method for a rise in temperature at a fast-closing valve (FCV) blade during exposure to intense synchrotron radiation from a 53-pole wiggler at the 2.5-GeV Photon Factory storage ring. The results indicated a possible meltdown of the titanium-alloy blade within 0.1 s at a maximum beam current of 500 mA, making the vacuum protection function of the FCV ineffective for an instantaneous vacuum failure downstream of the wiggler beam line. In order to prevent the blade from melting, the FCV control system has been interlocked with RF klystrons so as to initiate blade closure after dumping the electron beam by tuning off the RF power. Performance tests have shown that the system could dump the electron beam within 95 μs and then close the blade within 12.4 ms after being triggered. © 1990 IEEE

引用

页码：2 / 6

页数：5

共 18 条

[11] MEASUREMENTS OF SHOCK-WAVE FLIGHT TIMES IN LONG PIPES [J].

PEATMAN, W ;

WEINER, EW .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1980, 17 (05) :1237-1240

[12]

SAKANAKA S, UNPUB

[13] TRANSIT TIMES OF PRESSURE WAVES IN AN ACOUSTIC DELAY-LINE [J].

SATO, S ;

KAKIZAKI, A ;

MIYA, T ;

MORIOKA, Y ;

YAMAKAWA, T ;

ISHII, T .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1985, 240 (01) :194-198

[14] BERYLLIUM WINDOW ASSEMBLY FOR THE 53-POLE WIGGLER BEAMLINE AT THE PHOTON FACTORY [J].

SATO, S ;

ASAOKA, S ;

NAGAKURA, I ;

KANAYA, N .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (07) :1965-1968

[15]

SATO S, 1983, NUCL INSTRUM METH A, V288, P31

[16]

SHIOYA T, 1989, REV SCI INSTRUM, V60, P1859

[17]

1982, PHOTON FACTORY ACTIV

[18]

ANSYS FINITE ELEMENT

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