Author/Authors :
Nakashima، نويسنده , , Hiroshi and Nakane، نويسنده , , Yoshihiro and Sakamoto، نويسنده , , Yukio and Asano، نويسنده , , Yoshihiro and Tanaka، نويسنده , , Shun-ichi and Ban، نويسنده , , Syuichi and Namito، نويسنده , , Yoshihito and Hirayama، نويسنده , , Hideo and Nariyama، نويسنده , , Nobuteru، نويسنده ,
Abstract :
A previously developed total-absorption calorimeter was improved by replacing a thermostated air bath by a vacuum chamber in order to reduce the applicable photon energy up to several keV, and to extend the measurable photon intensity up to about 10 W of synchrotron radiation. The calorimeter maintained linearity over the power range from about 10 μW to a few W within 0.1%. Experiments with monoenergetic and white-spectrum photons have proven the designed performance, in which the heat power due to monoenergetic photons was measured within an uncertainty of 3%, and the heat power due to white-spectrum photons was up to about 2 W.
