The performance of a plate-type photon beam monitor at SRRC

Autor:	Syn Bin Lee, Ching Iue Chen, Ping Chung Tseng, Kuo Tung Hsu, Chu Nan Chang
Rok vydání:	1990
Předmět:	Physics Nuclear and High Energy Physics Input offset voltage business.industry Measure (physics) chemistry.chemical_element Tungsten Optics Light source chemistry visual_art Electronic component visual_art.visual_art_medium Electronics Photon beam business Instrumentation Sensitivity (electronics)
Zdroj:	Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 291:419-421
ISSN:	0168-9002
DOI:	10.1016/0168-9002(90)90097-p
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::25243b073afeef06037f74e38fc45062 https://doi.org/10.1016/0168-9002(90)90097-p Zobrazit plný text záznamu