The history of Compton cameras began with the detection of radiation sources originally for
applications in astronomy. A Compton camera is a promising γ-ray detector that operates in …

This article provides a review on X-ray pulsar-based navigation (XNAV). The review starts
with the basic concept of XNAV, and briefly introduces the past, present and future projects …

The X-Ray Imaging and Spectroscopy Mission (XRISM) is the successor to the 2016 Hitomi
mission that ended prematurely. Like Hitomi, the primary science goals are to examine …

A bstract This article describes BabyIAXO, an intermediate experimental stage of the
International Axion Observatory (IAXO), proposed to be sited at DESY. IAXO is a large-scale …

The Black Hole Explorer (BHEX) is a next-generation space very long baseline
interferometry (VLBI) mission concept that will extend the ground-based millimeter …

The resolve instrument onboard the X-Ray Imaging and Spectroscopy Mission (XRISM)
consists of an array of 6× 6 silicon-thermistor microcalorimeters cooled down to 50 mK and a …

ABSTRACT The kinetic Sunyaev–Zeldovich (kSZ) effect has now become a clear target for
ongoing and future studies of the cosmic microwave background (CMB) and cosmology …

We experimentally show that the 1 s 2 2 s 2 2 p 1/2-1 s 2 s 2 2 p 1/2 2 transition in Pb 77+
emitted in dielectronic recombination of Pb 78+ is strongly polarized, although it is an …

The Line Emission Mapper (LEM) is an x-ray probe mission concept that is designed to
provide unprecedented insight into the physics of galaxy formation, including stellar and …

We have been developing a medical imaging system using a Compton camera and
demonstrated the imaging ability of Compton camera for 99mTc-DMSA accumulated in rat …