Oct 20 – 23, 2026
RIKEN
Asia/Tokyo timezone
Registration deadline is October 12!!

Direct measurement of astrophysically important (a,p) reactions using AToM-X active target TPC

Oct 21, 2026, 6:00 PM
3h
Headquarters Building 2F (RIKEN)

Headquarters Building 2F

RIKEN

2-1, Hirosawa, Wako, Saitama 351-0198, Japan
Poster Presentation Poster Session

Speaker

Dr Soomi Cha (Center for Exotic Nuclear Studies, Institute for Basic Science)

Description

Investigating (α,p) reactions is essential for understanding explosive stellar environments, such as X-ray bursts and core-collapse supernovae. However, direct measurements of (α,p) reactions with rare-isotope beams remain experimentally challenging, and previous studies have therefore relied largely on theoretical estimates and indirect approaches. An Active Target Time Projection Chamber (AT-TPC) provides a suitable detection system for such measurements, combining high detection efficiency with three-dimensional tracking in a thick gas target. A new Active Target TPC for Multiple nuclear physics eXperiments, AToM-X, is being developed at the Center for Exotic Nuclear Studies (CENS) for direct measurements of astrophysically important reactions. In this presentation, the development status of AToM-X and the approved experimental programs will be discussed including the direct measurement of the ¹⁷F(α,p)²⁰Ne reaction cross sections at CRIB in RIKEN.

Category Experiment

Authors

Dr Soomi Cha (Center for Exotic Nuclear Studies, Institute for Basic Science) Yung Hee Kim

Co-authors

Dr Aram Kim (CENuM, Korea University) Chaeyeon Park (IRIS/IBS) Gyoungmo Gu (Sungkyunkwan University) Jangyong Huh (CENS, IBS) Dr Jung Woo Lee (Center for Exotic Nuclear Studies, Institutes for Basic Science) Kevin Hahn (Center for Exotic Nuclear Studies, IBS) Dr Minju Kim (IRIS, IBS) Dr Sunghan Bae (IRIS, IBS) Sunghoon (Tony) Ahn (Institute for Basic Science) Dr Zifeng Luo (Institute for Basic Science)

Presentation materials

There are no materials yet.