The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF
AU - El Khechen, D.
AU - Bambade, P.
AU - Blin, A.
AU - Cornebise, P.
AU - Funakoshi, Y.
AU - Jehanno, D.
AU - Kubytskyi, V.
AU - Ohnishi, Y.
AU - Peinaud, Y.
AU - Rimbault, C.
AU - Uehara, S.
ED - Petit-Jean-Genaz, Christine
ED - Kim, Dong Eon
ED - Kim, Kyung Sook
ED - Ko, In Soo
ED - Schaa, Volker RW
TI - First Tests of SuperKEKB Luminosity Monitors during 2016 Single Beam Commissioning
J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016
C1 - Busan, Korea
T2 - International Particle Accelerator Conference
T3 - 7
LA - english
AB - The SuperKEKB e⁺e⁻ collider aims to reach a very high luminosity of 8 10³⁵ cm⁻²s^{−1}, using highly focused ultra-low emittance bunches colliding every 4ns. Fast luminosity monitoring is required for luminosity feedback and optimisation in presence of dynamic imperfections. The aimed relative precision is about 10⁻³ in 1ms, which can be in principle achieved thanks to the very large cross-section of the radiative Bhabha process at zero degree scattering angle. Diamond, Cherenkov and scintillator sensors are to be placed just outside the beam pipe, downstream of the interaction point in both rings, at locations with event rates consistent with the aimed precision and small enough backgrounds from single-beam particle losses. The initial configuration installed for the 2016 "phase 1" single beam commissioning will be described, including the sensors, mechanical setup, readout electronics and first stage DAQ. Preliminary measurements and analysis of beam gas Bremsstrahlung loss data collected with the luminosity monitors will be reported and compared with a detailed simulation, for several experimental conditions during the SuperKEKB commissioning.
PB - JACoW
CP - Geneva, Switzerland
SP - 81
EP - 83
KW - luminosity
KW - vacuum
KW - simulation
KW - scattering
KW - background
DA - 2016/06
PY - 2016
SN - 978-3-95450-147-2
DO - 10.18429/JACoW-IPAC2016-MOPMB006
UR - http://jacow.org/ipac2016/papers/mopmb006.pdf
ER -