Tootfinder

Feedback-Controlled Beam Pattern Measurement Method Using a Power-Variable Calibration Source for Cosmic Microwave Background Telescopes
Haruaki Hirose, Masaya Hasegawa, Daisuke Kaneko, Taketo Nagasaki, Ryota Takaku, Tijmen de Haan, Satoru Takakura, Takuro Fujino
https://arxiv.org/abs/2509.09386

Feedback-Controlled Beam Pattern Measurement Method Using a Power-Variable Calibration Source for Cosmic Microwave Background Telescopes
We demonstrate a novel beam pattern measurement method for the side lobe characterization of cosmic microwave background telescopes. The method employs a power-variable artificial microwave source under feedback control from the detector under test on the telescope. It enables us to extend the dynamic range of the beam pattern measurement without introducing nonlinearity effects from the detector. We conducted a laboratory-based proof-of-concept experiment, measuring the H-plane beam pattern of…

'“NEVER use nuclear weapons again, or we’re finished,” 93-year-old survivor of the Nagasaki bombing Hiroshi Nishioka said at Saturday’s event marking the 80th anniversary of the US attack.'
‘Never use nuclear weapons again, or we’re finished:’ Nagasaki survivors speak out on 80th anniversary | Morning Star

CFP: Unfamiliar Neighbours: Empowering Minority Heritage in East Asian Port Cities
https://ift.tt/dAGIxgn
H-Diplo Roundtable XXV-12 on Fall, _Dien Bien Phu: Un coin d’Enfer_ H-Diplo Roundtable…
via Input 4 RELCFP

Heute vor 90 Jahren: Am 21. Oktober 1935 startete die #USA ihr #Nuklearprogramm. Sie war das erste Land, das Atomwaffen herstellte und im Krieg einsetzte (Hiroshima, Nagasaki). Bis zum Ende des Kalten Krieges führten sie 1.054 Nukleartests durch.

CFP: Unfamiliar Neighbours: Empowering Minority Heritage in East Asian Port Cities
https://ift.tt/5ETVy7F
H-Diplo Roundtable XXV-12 on Fall, _Dien Bien Phu: Un coin d’Enfer_ H-Diplo Roundtable…
via Input 4 RELCFP

CFP: Unfamiliar Neighbours: Empowering Minority Heritage in East Asian Port Cities #acrel https://networks.h-net.org/group/annou