Oct 3 – 7, 2022
Science Culture Center, IBS
Asia/Seoul timezone

Development of large GAGG:Ce calorimeter for measurements of the cluster knockout reactions

Oct 4, 2022, 6:24 PM
S236 (Science Culture Center, IBS)


Science Culture Center, IBS

55 EXPO-ro, Yuseong-gu, Daejeon
Poster Session Poster Session


Ryotaro Tsuji (Department of Physics, Kyoto university)


We have launched the “ONOKORO” project to understand cluster formation phenomena in nuclei and nuclear matter from measurements of the cluster knockout reactions (($p$,$p$X) reactions(X=$d$, $t$, $^3\mathrm{He}$, $\alpha$)).

In order to measure the reactions using inverse-kinematics, we have developed the “TOGAXSI” telescope consisting of Si trackers and large GAGG:Ce calorimeters. The required performance of the calorimeter is high energy resolution(~1$A$ MeV (rms)) under the high count rate (~100 kcps) and wide energy range (100$A$-250$A$ MeV).Therefore, we have developed new calorimeter using large GAGG:Ce crystal(35 mm $\times$ 35 mm $\times$ 120 mm) which is high resolution(8~9 % (662 keV, FWHM)), high density (~6.63 g/cm$^3$) and fast response(decay time~90 ns).

In this presentation, we report recent results of the performance test with proton and $\alpha$ beam at HIMAC, QST.

Primary author

Ryotaro Tsuji (Department of Physics, Kyoto university)


Junki Tanaka (Riken, Nishina-Center) Koshi Higuchi Yuto Hijikata (Kyoto University) Mr Shoichiro Kawase (Kyushu University) Mr Riku Matsumura (Saitama University) Tomohiro Uesaka (RIKEN) Mr Hiroyuki Takahashi (Tokyo City University) Mr Juzo Zenihiro (Kyoto University) Mr Kanta Yahiro (Kyoto University) EiIchi Takada (QST ) Hideaki Otsu (Riken, Nishina-Center)

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