Nuclear Targets for a Precision Measurement of the Neutral Pion Radiative Width

Journal Article · Tue Dec 01 00:00:00 EST 2009 · Nucl.Instrum.Meth.A

DOI:https://doi.org/10.1016/j.nima.2009.09.063· OSTI ID:956284

Martel, Philippe; Clinton, Eric; McWilliams, R; Lawrence, Dave; Miskimen, Rory; Ahmidouch, Abdellah; Ambrozewicz, Pawel; Asaturyan, Arshak; Baker, O; Benton, LaRay; Bernstein, Aron; Cole, Philip; Collins, Patrick; Dale, Daniel; Danagoulian, Samuel; Davidenko, G; Demirchyan, Raphael; Deur, Alexandre; DOLGOLENKO, A; Dzyubenko, Georgiy ; Evdokimov, Anatoly; Feng, JIng; Gabrielyan, Marianna; Gan, Liping; Gasparian, Ashot; Glamazdin, Oleksandr; Goryachev, Vladimir; Gyurjyan, Vardan; Hardy, K; Ito, Mark; Khandaker, Mahbubul; Kingsberry, Paul; Kolarkar, Ameya; Konchatnyi, Mykhailo; Korchin, O; Korsch, Wolfgang; Kowalski, Stanley; Kubantsev, Mikhail; Kubarovsky, Valery; LARIN, Ilya; MATVEEV, V; McNulty, Dustin; Milbrath, Brian; Minehart, Ralph; Mochalov, Vasiliy; Mtingwa, Sekazi; Nakagawa, Itaru; Overby, Steven; Pasyuk, Evgueni; Payen, Marvin; Pedroni, Ronald; Prok, Yelena; Ritchie, Barry; Salgado, Carlos; Sitnikov, Anatoly; Sober, Daniel; Stephens, W; Teymurazyan, Aram; Underwood, Jarreas; VASILIEV, A; VEREBRYUSOV, V; Vishnyakov, Vladimir; Wood, Michael

A technique is presented for precision measurements of the area densities, density * T, of approximately 5% radiation length carbon and 208Pb targets used in an experiment at Jefferson Laboratory to measure the neutral pion radiative width. The precision obtained in the area density for the carbon target is +/- 0.050%, and that obtained for the lead target through an x-ray attenuation technique is +/- 0.43%.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-060R23177
• OSTI ID: 956284
• Report Number(s): JLAB-PHY-08-894; arXiv:0811.2132; DOE/OR/23177-0595; JLAB-E-02-103; TRN: US1004975
• Journal Information: Nucl.Instrum.Meth.A, Vol. 612
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ACCURACY
ATTENUATION
CARBON
CEBAF ACCELERATOR
PIONS
RADIATION LENGTH
TARGETS