物質・生命科学実験施設

NTAC-1

第1回中性子源テクニカルアドバイザリー委員会

概要

開催日時: 平成14年10月28～30日

場所: 原子力科学研究所

プログラム: こちらをご覧下さい。

報告書

Report on the first Meeting (PDF)

第1回会合報告書（和訳、PDF形式）

発表資料がこちらからご覧になれます。

N-TAC agenda
Oct. 28, 2002
I. Project Overviews Session
1-01 Objectives and Introductory Guidance to the N-TAC Y. Ikeda
Greetings from the chairman of the advisory committee J. White
1-02 Project Overview S. Nagamiya
1-03 Accelerator Overview Y. Yamazaki
Break
1-04 Materials and Life Science Facility Overview

Project schedule, budget and organization
Instrument planning committee, access from abroad

 Y. Ikeda
1-05 Design Philosophy

Design requirements, Individual shutter, cold source concept, shutter inserts?,

 M. Furusaka/ N. Watanabe
1-06 Instrument Overview

Project-team Proposed Instruments, design-team organization, Strategy

 M. Arai
II. JSNS Design Presentation Session-1
2-01 Proton beam transport (3NBT)

Lattice and beam profile, beam broadening

 S. Sakamoto /S. Meigo
2-03 Cascade-target design for the muon facility Miyake /Meigo
2-04 Heat deposition, radio-activity and shielding calculation

Code system, target station, target and moderator, heat generation, dpa

 Maekawa
Lunch
2-05 Target system

Structure, thermal-hydraulic, structural analysis, Hg circulation system, target-trolley, safety-hull, heavy water cooling, life-time (5dpa), seal for Hg

 Hino
  Solid target back-up
2-08 Target remote-handling Kinoshita
Ⅲ. JSNS Design Presentation Session-2
3-01 Moderator-reflector system overview

Including neutronics, reflector Be & SS

 Teshigawara
  Moderator neutronics
3-02

Coupled

 Kai
3-03

Decoupled and poisoned

 Harada
Break
  Moderator-reflector engineering
3-04

Moderator mechanical structure

 Kogawa
3-07

Reflector mechanical structure & Water-flow

 ditto
3-05

Hydrogen flow in moderators

 Aso
  Discussion
adjourn
  Join the party for the ground breaking ceremony (Crystal Palace)
Oct. 29, 2002
Ⅲ. JSNS Design Presentation Session-2 continued
  Target station & shielding
  Low-temperature system
3-08

Loop overview, purge system

 Aso
3-09

Cryogenic loops Ushijima
Flow scheme (parallel/series), hydrogen density,
ortho-para, Temperature control, circulator

 Ushijima
  Reflector and reflector-plug
3-10

Moderator-reflector remote-handling, transfer-lines

 Teshigawara
IV. JSNS Design Presentation Session-3
4-01

Target station structure
Target station structure, shield block seal, He-vessel.
Shutter and shutter-insert remote-handling design, dry-air ventilation (temperature), neutron-beamline penetration

Takada
4-02

Proton beam window
Proton beam window, monitor, pillow seal,
remote handling

 Meigo
Break
4-03

Target station shield design, shutter shield calculation.,
Radiation-level design-requirements, shielding calculation: bulk, neutron shutter, neutron beamline (inc. LANL exp.); T0 chopper activation, horizontal reflectometer beam extraction, etc

 Maekawa
  Conventional facility, Ancillary, Safety
4-04

Building layout & Ancillary design status

 Kaminaga
4-05

Skyshine and other dose evaluation

 Konno
V. Target strategy, other material issues
5-01 Hg Pitting

Progress after the SNS EFAC meeting

 Futakawa
5-06 Project strategy on Hg target Y. Ikeda
5-07 Solid target backup Kiyanagi
Lunch
5-02 Material

AIC, Irradiation, Al

 Kikuchi
Discussion Session
  Discussions for all technical design
Break
  Discussions for all technical design
Executive session & report writing
Adjourn and reception
Oct. 30, 2002
Summary Session
  Executive session & report writing-continued
Summary
End of TAC
Lunch
Optional tour of JKJ site