The CEBAF large acceptance spectrometer (CLAS)

被引：530

作者：

Mecking, BA

Adams, G

Ahmad, S

Anciant, E

Anghinolfi, M

Asavapibhop, B

Asryan, G

Audit, G

Auger, T

Avakian, H

Ball, JP

Barbosa, FJ

Barrow, S

Battaglieri, M

Beard, K

Berman, BL

Bianchi, N

Boiarinov, S

Bonneau, P

Briscoe, WJ

Brooks, WK

Burkert, VD

Carman, DS

Carstens, T

Cetina, C

Christo, SB

Cole, PL

Coleman, A

Connelly, J

Cords, D

Corvisiero, P

Crabb, D

Crannell, H

Cuevas, RC

Degtyarenko, PV

Dennis, L

DeSanctis, E

DeVita, R

Distelbrink, J

Dodge, GE

Dodge, W

Doolittle, G

Doughty, D

Dugger, M

Duncan, WS

Dytman, S

Egiyan, H

Egiyan, KS

Elouadrhiri, L

Feuerbach, RJ

机构：

[1] Thomas Jefferson Natl Accelerator Facil, Jefferson Lab, Newport News, VA 23606 USA

[2] Rensselaer Polytech Inst, Troy, NY 12180 USA

[3] Baylor Coll Med, Houston, TX 77030 USA

[4] CEA Saclay, Serv Phys Nucl, F-91191 Gif Sur Yvette, France

[5] Ist Nazl Fis Nucl, Sezione Genova, I-16146 Genoa, Italy

[6] Univ Massachusetts, Amherst, MA 01003 USA

[7] Yerevan Phys Inst, Yerevan 375036, Armenia

[8] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[9] Arizona State Univ, Tempe, AZ 85287 USA

[10] Florida State Univ, Tallahassee, FL 32306 USA

[11] James Madison Univ, Harrisonburg, VA 22807 USA

[12] Coll William & Mary, Williamsburg, VA 23187 USA

[13] George Washington Univ, Washington, DC 20052 USA

[14] Ohio Univ, Athens, OH 45701 USA

[15] Univ Texas, El Paso, TX 79968 USA

[16] Univ Virginia, Charlottesville, VA 22901 USA

[17] Catholic Univ Amer, Washington, DC 20064 USA

[18] Univ New Hampshire, Durham, NH 03824 USA

[19] Old Dominion Univ, Norfolk, VA 23529 USA

[20] Christopher Newport Univ, Newport News, VA 23606 USA

[21] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[22] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[23] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA

[24] Univ Richmond, Richmond, VA 23173 USA

[25] Inst Phys Nucl Orsay, F-91406 Orsay, France

[26] Norfolk State Univ, Norfolk, VA 23504 USA

[27] Kyungpook Natl Univ, Taegu 702701, South Korea

[28] Florida Int Univ, Miami, FL 33199 USA

[29] Inst Theoret & Expt Phys, Moscow 117259, Russia

[30] Rice Univ, Houston, TX 77005 USA

[31] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[32] Univ Roma 3, I-00146 Rome, Italy

[33] Univ S Carolina, Columbia, SC 29208 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2003年 / 503卷 / 03期

基金：

美国国家科学基金会;

关键词：

CLAS; magnetic spectrometer; electromagnetic physics; large acceptance; JLab;

D O I：

10.1016/S0168-9002(03)01001-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The CEBAF large acceptance spectrometer (CLAS) is used to study photo- and electro-induced nuclear and hadronic reactions by providing efficient detection of neutral and charged particles over a good fraction of the full solid angle. A collaboration of about 30 institutions has designed, assembled, and commissioned CLAS in Hall B at the Thomas Jefferson National Accelerator Facility. The CLAS detector is based on a novel six-coil toroidal magnet which provides a largely azimuthal field distribution. Trajectory reconstruction using drift chambers results in a momentum resolution of 0.5% at forward angles. Cherenkov counters, time-of-flight scintillators, and electromagnetic calorimeters provide good particle identification. Fast triggering and high data-acquisition rates allow operation at a luminosity of 10(34) nucleon cm(-2) s(-1). These capabilities are being used in a broad experimental program to study the structure and interactions of mesons, nucleons, and nuclei using polarized and unpolarized electron and photon beams and targets. This paper is a comprehensive and general description of the design, construction and performance of CLAS. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：513 / 553

页数：41

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