東北大学ニュートリノ科学研究センター
KamLAND Detector Upgrade Project

Path to KamLAND2 (In Progress) 

The KamLAND experiment began observations in 2002 and concluded on August 27, 2024. Please visit this page to learn more about our achievements. Since then, we have continued our research to enhance detector performance and have been planning the next-generation experiment, KamLAND2. On this page, we introduce our journey from the shutdown of the KamLAND detector to the launch of KamLAND2.

Key Upgrades

説明文
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Upgrade Process

2026

Outer Detector PMT Installation, Cleaning, and Preparation 

2026-2027

PMT Installation and Cabling 
Outer Balloon Fabrication 

2027

New Electronics Installation 
Outer Balloon Installation 

2027-2028

Liquid Scintillator Filling and Detector Calibration 

2028-2029

Inner Balloon Fabrication 

2029

Inner Balloon Deployment 
XeLS Deployment and Launch of Ultra-Sensitive 0νββ Search 

KamLAND2 Construction Diary 

 ► May 15, 2025
   Balloon Removal

 ► Oct. 2024 - Jan. 2025
   Draining of Buffer Oil and Liquid Scintillator

 ► Jun.28,2024 - Aug.13,2024
   Xenon Distillation Work