A COMPACT POSITRON SOURCE USING A MICROTRON ACCELERATOR

被引：3

作者：

SHAW, ED ^{[1
]}

MILLS, AP ^{[1
]}

CHICHESTER, RJ ^{[1
]}

LEVENTHAL, M ^{[1
]}

ZUCKERMAN, D ^{[1
]}

CHABAN, EE ^{[1
]}

KOVACS, T ^{[1
]}

TOBIN, RG ^{[1
]}

机构：

[1] MICHIGAN STATE UNIV,E LANSING,MI 48824

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1991年 / 56-7卷

关键词：

D O I：

10.1016/0168-583X(91)96097-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The microtron accelerator developed at AT&T Bell Laboratories currently produces macropulses with charge slightly greater than 1-mu-C at energies of 19-20 MeV. The measured vertical emittance at the exit of the microtron is (8 +/- 4)pi mm mrad while the horizontal emittance is much smaller. In normal operations, a current of approximately 30-mu-A cw is delivered to a positron moderator in 16-mu-s pulses at 30 Hz. The accelerator is being used to study stimulated emission in a helical undulator for a free electron laser and to form a pulse train of 10(5) positrons/pulse for various solid state experiments and for laser measurements on positronium atoms. Several important microtron improvements including a LaB6 cathode, electron beam extraction, better vacuum, a new cavity design, and rf pulse envelope flattening will be discussed.

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收藏

页码：568 / 571

页数：4

相关论文

共 11 条

[1] STATUS OF THE FREE-ELECTRON LASER EXPERIMENT AT THE ENEA FRASCATI CENTER [J].

BIZZARRI, U ;

CIOCCI, F ;

DATTOLI, G ;

DEANGELIS, A ;

FIORENTINO, E ;

GALLERANO, GP ;

LETARDI, T ;

MARINO, A ;

MESSINA, G ;

RENIERI, A ;

SABIA, E ;

VIGNATI, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1985, 237 (1-2) :213-219

[2] ELECTRON-ACCELERATORS AT THE ENEA CENTER AT FRASCATI - DEVELOPMENT AND APPLICATION [J].

BIZZARRI, U ;

GIUBILEO, G ;

MESSINA, G ;

PICARDI, L ;

RAIMONDI, P ;

RONSIVALLE, C ;

VIGNATI, A ;

BARALDI, D ;

CASTAGNOLA, AM ;

OMARINI, S ;

FABIANI, L ;

LEONI, V .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 50 (1-4) :331-337

[3]

COSTELLO DG, 1972, PHYS REV B, V4, P1433

[4] 1ST DEMONSTRATION OF A FREE-ELECTRON LASER DRIVEN BY ELECTRONS FROM A LASER-IRRADIATED PHOTOCATHODE [J].

CURTIN, M ;

BENNETT, G ;

BURKE, R ;

BHOWMIK, A ;

METTY, P ;

BENSON, S ;

MADEY, JMJ .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1990, 296 (1-3) :127-133

[5] PRODUCTION OF SLOW POSITRONS WITH A 100-MEV ELECTRON LINAC [J].

HOWELL, RH ;

ALVAREZ, RA ;

STANEK, M .

APPLIED PHYSICS LETTERS, 1982, 40 (08) :751-752

[6]

Kapitza S.P., 1978, MICROTRON

[7] SEARCH FOR ADIABATIC POSITRONIUM EMISSION FROM A METAL-SURFACE [J].

MILLS, AP ;

SHAW, ED ;

CHICHESTER, RJ ;

ZUCKERMAN, DM .

PHYSICAL REVIEW B, 1989, 40 (13) :8616-8619

[8] PRODUCTION OF SLOW POSITRON BUNCHES USING A MICROTRON ACCELERATOR [J].

MILLS, AP ;

SHAW, ED ;

CHICHESTER, RJ ;

ZUCKERMAN, DM .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1989, 60 (05) :825-830

[9] POSITRONIUM THERMALIZATION IN SIO2 POWDER [J].

MILLS, AP ;

SHAW, ED ;

CHICHESTER, RJ ;

ZUCKERMAN, DM .

PHYSICAL REVIEW B, 1989, 40 (04) :2045-2052

[10] INTERACTION OF POSITRON BEAMS WITH SURFACES, THIN-FILMS, AND INTERFACES [J].

SCHULTZ, PJ ;

LYNN, KG .

REVIEWS OF MODERN PHYSICS, 1988, 60 (03) :701-779