AN ABSOLUTE CALIBRATION OF THE p+d HIGH-ENERGY POLARIMETERS
نویسندگان
چکیده
Guided by the results of our analyzing-power measurements for p+d elastic scattering at 200 and 120 MeV,' we have designed and constructed two proton polarimeters for the IUCF high-energy beamlines. Each polarimeter contains four pairs of scintillators, where each pair consists of a thin AE paddle for the proton operated in coincidence with a stopping scintillator for the deuteron. The recoil deuteron detectors are positioned to beam left, right, down, and up, with the left/right and down/up pairs treated as separate event streams. Each scintillator pair can be positioned at three different scattering angles, and, at each angle, the deuteron detector thickness can be optimized to cover four different I
منابع مشابه
Precision Polarimetry at the International Linear Collider
At the ILC, the overall scheme for a precise measurement of the beam polarisation conists in the usage of two Compton polarimeters per beam (upand downstream of the e+e− interaction point) and a polarisation measurement from annihilation data [1, 2] to set the absolute scale. The two upand downstream polarimeters are complementary, add redundancy and are used to intercalibrate the systems and r...
متن کاملTesla Polarimeters
We describe a study of high-energy Compton beam polarimeters for the future ee linear collider machine TESLA. A segment of the beam delivery system has been identified, which is aligned with the ee collision axis and which has a suitable configuration for high-quality beam polarization measurements. The laser envisaged for the polarimeter is similar to an existing facility at DESY. It delivers ...
متن کاملThomas Jefferson National Accelerator Facility JLAB-TN-01-029 UNIQUE ELECTRON POLARIMETER COMPARISON AND SPIN–BASED ENERGY MEASUREMENT
A careful intercomparison of the relative analyzing power of five electron beam polarimeters was performed with the CEBAF accelerator at Thomas Jefferson National Accelerator Facility (JLab) during a dedicated two day machine development period. This is the first time such a high precision comparison between polarimeters of the Mott, Compton, and Møller type has been made. A Wien–style spin man...
متن کاملUnique electron polarimeter analyzing power comparisonand precision spin-based energy measurement
042802-1 Precision measurements of the relative analyzing powers of five electron beam polarimeters, based on Compton, Møller, and Mott scattering, have been performed using the CEBAF accelerator at the Thomas Jefferson National Accelerator Facility (Jefferson Laboratory). A Wien filter in the 100 keV beam line of the injector was used to vary the electron spin orientation exiting the injector....
متن کاملUnique Electron Polarimeter Comparison and Spin–based Energy Measurement
A careful intercomparison of the relative analyzing power of five electron beam polarimeters was performed with the CEBAF accelerator at the Thomas Jefferson National Accelerator Facility (JLab) during a dedicated two day machine development period. This is the first time such a high precision comparison between polarimeters of the Mott, Compton, and Møller type has been made. A Wien– style spi...
متن کامل