TY - JOUR
T1 - The performance of a plate-type photon beam monitor at SRRC
AU - Chang, Chu-Nan
AU - Chen, Ching Iue
AU - Lee, Syn Bin
AU - Tseng, Ping Chung
AU - Hsu, Kuo Tung
PY - 1990/5/20
Y1 - 1990/5/20
N2 - A photoemission plate-type photon beam monitor has been fabricated and tested using a HeI (21 eV) lamp light source. The sensitivity ΔI IΔs, obtained by using a picoammeter (Keithley Model 617), is 3.38/mm for both OFHC copper plate and tungsten plate which agrees with the theoretical value. Current-voltage converting and voltage-amplifying electronics have also been devised to measure the sensitivity directly. The degradation introduced by the offset voltage of the electronic components has been analyzed. The sensitivity of this monitor has been verified to depend on both the integral part of the spatial distribution of the light on the plate and the background current generated by the picoammeter.
AB - A photoemission plate-type photon beam monitor has been fabricated and tested using a HeI (21 eV) lamp light source. The sensitivity ΔI IΔs, obtained by using a picoammeter (Keithley Model 617), is 3.38/mm for both OFHC copper plate and tungsten plate which agrees with the theoretical value. Current-voltage converting and voltage-amplifying electronics have also been devised to measure the sensitivity directly. The degradation introduced by the offset voltage of the electronic components has been analyzed. The sensitivity of this monitor has been verified to depend on both the integral part of the spatial distribution of the light on the plate and the background current generated by the picoammeter.
UR - http://www.scopus.com/inward/record.url?scp=4244035343&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4244035343&partnerID=8YFLogxK
U2 - 10.1016/0168-9002(90)90097-P
DO - 10.1016/0168-9002(90)90097-P
M3 - Article
AN - SCOPUS:4244035343
VL - 291
SP - 419
EP - 421
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
SN - 0168-9002
IS - 1-2
ER -