title: Calibration of a 32 channel electron cyclotron emission radiometer on the HL-2A tokamak.
abstract: A novel 32-channel electron cyclotron emission radiometer has been designed and tested for the measurement of electron temperature profiles on the HL-2A tokamak. This system is based on the intermediate frequency filter detection technique, and has the features of wide working frequency range and high spatial resolution. Two relative calibration methods have been investigated: sweeping the toroidal magnetic field and hopping the output frequency of the local oscillator. Preliminary results show that both methods can ensure reasonable profiles.
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: Z B
authors.initials: ZB
authors.lastname: Shi
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: M
authors.initials: M
authors.lastname: Jiang
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: X L
authors.initials: XL
authors.lastname: Huang
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: W L
authors.initials: WL
authors.lastname: Zhong
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: W
authors.initials: W
authors.lastname: Chen
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: Y L
authors.initials: YL
authors.lastname: Che
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: Z T
authors.initials: ZT
authors.lastname: Liu
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: X T
authors.initials: XT
authors.lastname: Ding
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: Q W
authors.initials: QW
authors.lastname: Yang
authors.affiliation: Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China.
authors.forename: X R
authors.initials: XR
authors.lastname: Duan