TY - JOUR
T1 - Calibration of Thomson parabola – MCP assembly for multi-MeV ion spectroscopy
AU - Prasad, R.
AU - Doria, Domenico
AU - Ter-Avetisyan, Sargis
AU - Fostera, P.S.
AU - Quinn, K.E.
AU - Romagnani, Lorenzo
AU - Brenner, C.M.
AU - Green, J.S.
AU - Gallegos, P.
AU - Streeter, M.J.V.
AU - Carroll, D.C.
AU - Tresca, O.
AU - Dover, N.
AU - Palmer, C.A.J.
AU - Schreiber, J.
AU - Neely, D.
AU - Najmudin, Z.
AU - McKenna, P.
AU - Zepf, Matthew
AU - Borghesi, Marco
PY - 2010/11/11
Y1 - 2010/11/11
N2 - We report on the absolute calibration of a micro channel plate (MCP) detector, installed as detector in a Thomson parabola spectrometer. The calibration delivers the relation between a registered count numbers in the CCD camera (on which the MCP phosphor screen is imaged) as a result of the impact of an ion beam onto the MCP. The particle response of the whole detection system was evaluated by using laser accelerated ions with proton energies up to 3 MeV and carbon ion energies up to 16 MeV. In order to obtain an absolute measurement of the number of ions incident on the MCP detector, slotted CR-39 track detector was installed in front of the MCP. The signal registered on the MCP due to ions propagating through the CR-39 slots is compared to the number of particles counted on the adjacent CR-39 stripes after the etching. The calibration of the response of MCP has been extended to higher energy ions and protons on the basis of a simple model validated by comparison with the calibration data. This sensitive detection set-up makes it possible to measure in a single laser shot the ion spectrum in absolute terms.
AB - We report on the absolute calibration of a micro channel plate (MCP) detector, installed as detector in a Thomson parabola spectrometer. The calibration delivers the relation between a registered count numbers in the CCD camera (on which the MCP phosphor screen is imaged) as a result of the impact of an ion beam onto the MCP. The particle response of the whole detection system was evaluated by using laser accelerated ions with proton energies up to 3 MeV and carbon ion energies up to 16 MeV. In order to obtain an absolute measurement of the number of ions incident on the MCP detector, slotted CR-39 track detector was installed in front of the MCP. The signal registered on the MCP due to ions propagating through the CR-39 slots is compared to the number of particles counted on the adjacent CR-39 stripes after the etching. The calibration of the response of MCP has been extended to higher energy ions and protons on the basis of a simple model validated by comparison with the calibration data. This sensitive detection set-up makes it possible to measure in a single laser shot the ion spectrum in absolute terms.
U2 - 10.1016/j.nima.2010.02.078
DO - 10.1016/j.nima.2010.02.078
M3 - Article
SN - 0168-9002
VL - 623
SP - 712
EP - 715
JO - Nuclear Instruments & Methods in Physics Research - Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
JF - Nuclear Instruments & Methods in Physics Research - Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
IS - 2
T2 - 1st International Conference on Frontiers in Diagnostic Technologies
Y2 - 1 November 2010 through 1 November 2010
ER -