HIGH-EFFICIENCY BENDING OF 450 GEV PROTONS USING CHANNELING

被引：28

作者：

MOLLER, SP

UGGERHOJ, E

ATHERTON, HW

CLEMENT, M

DOBLE, N

ELSENER, K

GATIGNON, L

GRAFSTROM, P

HAGEALI, M

SIFFERT, P

机构：

[1] CERN,CH-1211 GENEVA 23,SWITZERLAND

[2] CTR RECH NUCL,F-67037 STRASBOURG,FRANCE

来源：

PHYSICS LETTERS B | 1991年 / 256卷 / 01期

关键词：

D O I：

10.1016/0370-2693(91)90224-E

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

For the first time more than 10% of a 450 GeV proton beam has been bent using planar channeling in a 5 cm long single crystal of silicon. The bent beam is very narrow in angle (+/- 5-mu-rad), symmetrical and has suffered an energy loss of approximately 60% of random energy loss. Some of the unbent particles, however, lose more energy than random particles and the straggling is 50% larger than random. From the unbent fraction the bending dechanneling is inferred and found to be in agreement with calculations. The bending efficiency is in good agreement with theoretical dechanneling estimates. The results present very interesting perspectives for extracting beams from future TeV accelerators.

引用

页码：91 / 96

页数：6

共 23 条

[1]

ATHERTON HW, 1987, NEW IMPROVED SPS BEA

[2] BENDING OF HIGH-ENERGY BEAMS USING AXIAL AND PLANAR CHANNELING [J].

BAK, J ;

MELCHART, G ;

UGGERHOJ, E ;

FORSTER, JS ;

JENSEN, PR ;

MADSBOLL, H ;

MOLLER, SP ;

NIELSEN, H ;

PETERSEN, G ;

SCHIOTT, H ;

GROB, JJ ;

SIFFERT, P .

PHYSICS LETTERS B, 1980, 93 (04) :505-508

[3] DETAILED INVESTIGATION OF THE CHANNELING PHENOMENA INVOLVED IN BENDING OF HIGH-ENERGY BEAMS BY MEANS OF CRYSTALS [J].

BAK, JF ;

JENSEN, PR ;

MADSBOLL, H ;

MOLLER, SP ;

SCHIOTT, HE ;

UGGERHOJ, E ;

GROB, JJ ;

SIFFERT, P .

NUCLEAR PHYSICS B, 1984, 242 (01) :1-30

[4] MEASUREMENT OF AVERAGE ELECTRON-DENSITIES IN SI AND GE USING MEV DELTA-RAYS PRODUCED BY CHANNELED HIGH-ENERGY PROJECTILES [J].

BAK, JF ;

MELCHART, G ;

MOLLER, SP ;

FORSTER, JS ;

JENSEN, PR ;

MADSBOLL, H ;

PETERSEN, G ;

SCHIOTT, H ;

UGGERHOJ, E ;

GROB, JJ ;

SIFFERT, P .

NUCLEAR PHYSICS A, 1982, 389 (03) :533-556

[5] DEFLECTION OF AN 800 GEV PARTICLE BEAM USING CHANNELING [J].

BAKER, SI ;

CARRIGAN, RA ;

DIXON, RL ;

FENKER, HC ;

STEFANSKI, RJ ;

FORSTER, JS ;

WIJAYAWARDANA, RL ;

REUCROFT, S .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1986, 248 (2-3) :301-308

[6] DEFLECTION OF CHARGED-PARTICLES IN THE 100 GEV REGIME USING CHANNELING IN BENT SINGLE-CRYSTALS [J].

BAKER, SI ;

CARRIGAN, RA ;

CRAWFORD, C ;

TOOHIG, TE ;

GIBSON, WM ;

JIN, H ;

KIM, IJ ;

PISHARODY, M ;

SALMAN, S ;

SUN, CR ;

WANG, GH ;

WIJAYAWARDANA, R ;

FORSTER, JS ;

HATTON, H ;

MITCHELL, IV ;

GUZIK, Z ;

NIGMANOV, TS ;

TSYGANOV, EN ;

AVDEICHIKOV, VV ;

ELLISON, JA ;

SIFFERT, P .

PHYSICS LETTERS B, 1984, 137 (1-2) :129-134

[7] 1ST OPERATION WITH A CRYSTAL SEPTUM TO REPLACE A MAGNET IN A CHARGED-PARTICLE BEAM [J].

BAKER, SI ;

CARRIGAN, RA ;

SCHAILEY, R ;

TOOHIG, TE ;

GIBSON, WM ;

KIM, IJ ;

SUN, F ;

SUN, CR ;

TANIKELLA, V ;

WIJAYAWARDANA, R ;

FORSTER, JS ;

HATTON, H ;

MITCHELL, IV ;

ELLISON, JA .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1985, 234 (03) :602-605

[8]

BARR GD, CERN CERNSPSC8939

[9] BEAM EXTRACTION FROM TEV ACCELERATORS USING CHANNELING IN BENT CRYSTALS [J].

CARRIGAN, RA ;

TOOHIG, TE ;

TSYGANOV, EN .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1990, 48 (1-4) :167-170

[10]

CARRIGAN RA, 1986, NATO ASI SERIES, V165

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