Density changes in low pressure gas targets for electron scattering experiments

被引：12

作者：

Santiesteban, S. N. ^{[1
]}

Alsalmi, S. ^{[2
]}

Meekins, D. ^{[3
]}

Gayoso, C. Ayerbe ^{[5
]}

Bane, J. ^{[4
]}

Barcus, S. ^{[5
]}

Campbell, J. ^{[6
]}

Castellanos, J. ^{[7
]}

Cruz-Torres, R. ^{[8
]}

Dai, H. ^{[9
]}

Hague, T. ^{[2
]}

Hauenstein, F. ^{[10
]}

Higinbotham, D. W. ^{[3
]}

Holt, R. J. ^{[11
,12
]}

Kutz, T. ^{[14
]}

Li, S. ^{[1
]}

Liu, H. ^{[13
]}

McClellan, R. E. ^{[3
]}

Nycz, M. ^{[2
]}

Nguyen, D. ^{[15
]}

Pandey, B. ^{[16
]}

Pandey, V ^{[9
]}

Schmidt, A. ^{[8
]}

Su, T. ^{[2
]}

Ye, Z. ^{[12
]}

机构：

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

[2] Kent State Univ, Kent, OH 44240 USA

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

[4] Univ Tennessee, Knoxville, TN 37996 USA

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

[6] St Marys Univ, Halifax, NS, Canada

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

[8] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[9] Virginia Tech, Ctr Neutrino Phys, Blacksburg, VA 24061 USA

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

[11] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA

[12] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA

[13] Columbia Univ, New York, NY 10027 USA

[14] SUNY Stony Brook, Stony Brook, NY 11794 USA

[15] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA

[16] Hampton Univ, Hampton, VA 23669 USA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2019年 / 940卷

基金：

美国国家科学基金会;

关键词：

Target; Tritium; Helium; Deuterium; Hydrogen; Argon; HALL-A;

D O I：

10.1016/j.nima.2019.06.025

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A system of modular sealed gas target cells has been developed for use in electron scattering experiments at the Thomas Jefferson National Accelerator Facility (Jefferson Lab). This system was initially developed to complete the MARATHON experiment which required, among other species, tritium as a target material. Thus far, the cells have been loaded with the gas species H-3, He-3, H-2, H-1 and Ar-40 and operated in nominal beam currents of up to 22.5 mu A in Jefferson Lab's Hall A. While the gas density of the cells at the time of loading is known, the density of each gas varies uniquely when heated by the electron beam. To extract experimental cross sections using these cells, density dependence on beam current of each target fluid must be determined. In this study, data from measurements with several beam currents within the range of 2.5 to 22.5 mu A on each target fluid are presented. Additionally, expressions for the beam current dependent fluid density of each target are developed.

引用

页码：351 / 358

页数：8

共 17 条

[1] Basic instrumentation for Hall A at Jefferson Lab
Alcorn, J
Anderson, BD
Aniol, KA
Annand, JRM
Auerbach, L
Arrington, J
Averett, T
Baker, FT
Baylac, M
Beise, EJ
Berthot, J
Bertin, PY
Bertozzi, W
Bimbot, L
Black, T
Boeglin, WU
Boykin, DV
Brash, EJ
Breton, V
Breuer, H
Brindza, P
Brown, D
Burtin, E
Calarco, JR
Cardman, LS
Carr, R
Cates, GD
Cavata, C
Chai, Z
Chang, CC
Chant, NS
Chen, JP
Choi, S
Chudakov, E
Churchwell, S
Coman, M
Cisbani, E
Colilli, S
Colombel, N
Crateri, R
Dale, DS
Degrande, N
de Jager, CW
De Leo, R
Deur, A
Dezern, G
Diederich, B
Dieterich, S
di Salvo, R
Djawotho, P
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2004, 522 (03) : 294 - 346
[2] A CRYOGENIC TRITIUM TARGET SYSTEM FOR NUCLEAR-PHYSICS EXPERIMENTS
BECK, D
RETZLAFF, G
TURCHINETZ, W
BLOMQVIST, KI
DEMOS, P
DODSON, G
DOW, K
DZENGELESKI, J
FLANZ, J
KARAGEORGE, G
MASSE, F
RUSS, T
RUSSO, C
SAPP, W
SARGENT, CP
WILLIAMSON, C
GOLOSKIE, R
FARKHONDEH, M
WHITNEY, R
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1989, 277 (2-3) : 323 - 337
[3] Benhar O., 2014, E1214012 JLAB EXP
[4] Thermomechanical design of a static gas target for electron accelerators
Brajuskovic, B.
O'Connor, T.
Holt, R. J.
Reneker, J.
Meekins, D.
Solvignon, P.
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2013, 729 : 469 - 473
[5] Cruz-Torres R., 2019, COMP PROTON MOMENTUM
[6] First measurement of the Ar(e, e′)X cross section at Jefferson Laboratory
Dai, H.
Murphy, M.
Pandey, V
Abrams, D.
Nguyen, D.
Aljawrneh, B.
Alsalmi, S.
Ankowski, A. M.
Bane, J.
Barcus, S.
Benhar, O.
Bellini, V
Bericic, J.
Biswas, D.
Camsonne, A.
Castellanos, J.
Chen, J-P
Christy, M. E.
Craycraft, K.
Cruz-Torres, R.
Day, D.
Dusa, S-C
Fuchey, E.
Gautam, T.
Giusti, C.
Gomez, J.
Gu, C.
Hague, T.
Hansen, J-O
Hauenstein, F.
Higinbotham, D. W.
Hyde, C.
Jen, C. M.
Keppel, C.
Li, S.
Lindgren, R.
Liu, H.
Mariani, C.
McClellan, R. E.
Meekins, D.
Michaels, R.
Mihovilovic, M.
Nycz, M.
Ou, L.
Pandey, B.
Park, K.
Perera, G.
Puckett, A. J. R.
Santiesteban, S. N.
Sirca, S.
[J]. PHYSICAL REVIEW C, 2019, 99 (05)
[7] Denard J.-C., 2001, PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268), P2326, DOI 10.1109/PAC.2001.987367
[8] Vertical drift chambers for the Hall A high-resolution spectrometers at Jefferson Lab
Fissum, KG
Bertozzi, W
Chen, JP
Dale, D
Fenker, HC
Gao, J
Gavalya, A
Gilad, S
Leathers, CR
Liyanage, N
Michaels, RO
Offermann, EAJM
Segal, J
Templon, JA
Wechsler, R
Wojtsekhowski, B
Zhao, J
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2001, 474 (02) : 108 - 131
[9] Hen O., 2013, E1214011 JLAB EXP
[10] Holt R., 2015, TRITIUM GAS TARGET J

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