Context-dependent cheating: experimental evidence from 16 countries

Policy makers use several international indices that characterize countries according to the quality of their institutions. However, no effort has been made to study how the honesty of citizens varies across countries. This paper explores the honesty among citizens across sixteen countries with 1440 participants. We employ a very simple task where participants face a trade-off between the joy of eating a fine chocolate and the disutility of having a threatened self-concept because of lying. Despite the incentives to cheat, we find that individuals are mostly honest. Further, international indices that are indicative of institutional honesty are completely uncorrelated with citizens' honesty for our sample countries

Radiation shielding requirements for the full power operation of the linear IFMIF prototype accelerator (LIPAc) at Rokkasho

The detailed shielding analysis has been performed in order to find a configuration of the radiation shielding in the accelerator building necessary for the operation of the Linear IFMIF Prototype Accelerator (LIPAc), which is under construction in Rokkasho, Japan, at the full power of 1.125 MW to satisfy the radiation dose limit prescribed by Japanese regulations. The final design of the beam dump constructed by CIEMAT, Spain was fully taken into consideration. The impact of all the features potentially causing neutron streaming were investigated and the optimization of local additional shieldings were conducted. As the result, the most important one was found to be the air ventilation duct shield, which completely covers the ducts and creates an additional labyrinth. By considering the additional shielding configuration determined in the present study, the legal criteria at the controlled area boundary can be completely satisfied

Lattice design for 5MeV-125mA CW RFQ operation in the LIPAc

The installation and commissioning of the LIPAc are on- going under the Broader Approach agreement, which is the prototype accelerator of the IFMIF for proof of principle and design. The deuteron beam will be accelerated by the RFQ linac from 100 keV to 5 MeV during the commission- ing phase-B and by the SRF linac up to 9 MeV during the phase-C. The commissioning phase-B+ will be imple- mented between phase-B and C to complete the engineer- ing validation of the RFQ linac before installing the SRF linac. The lattice for the deuteron beam of 5 MeV and 125 mA at the commissioning phase-B+ was designed

IFMIF/EVEDA原型加速器(LIPAc)のRFQ長パルス試験に向けたラティス設計

　　国際核融合材料照射施設（IFMIF）の工学設計・主要機器の設計・製作・試験を行い、建設判断に必要な技術実証を行うために、現在、原型加速器（LIPAc: Linear IFMIF Prototype Accelerator）の建設とコミッショニングを段階的に進めている。現在はコミッショニングのフェーズBにおいてRFQを用いた陽子・重陽子の加速試験が行われており、将来のフェーズC及びDにおいてはSRFを用いたビーム加速試験が行われる予定である。フェーズCの開始前にSRFを除く全システムを統合し、予め長パルス試験を実施しておくことが重要であるとの認識から、コミッショニングフェーズB+を実施することが決まった。2019年度内に統合を完了するため、SRFのインストール予定位置に代替のビームラインを設置し、SRF無しに入射器から最終段のビームダンプまでビームを通して、CWを目指したRFQ長パルス試験を行う予定となっている。RFQ長パルス試験終了後に安全にSRFをインストールするためには、ビームロスを抑制し周辺機器の放射化を抑える必要がある。また放射線及び熱負荷によるビームダンプの損傷を抑えるためには、ビームダンプへのビーム入射条件を整える必要がある。これら要請を満たすために、代替のビームラインを含むRFQ出口からビームダンプ入口までのラティス設計を行った。フェーズB+のラティスについて詳細を報告する。第16回日本加速器学会年

Functional Overview of the RF Power System for the LIPAc RFQ

International audienceDesign, development, manufacturing, and test activities of the RF power system (RFPS) for Linear IFMIF Prototype Accelerator (LIPAc) were completed in Europe. Installation and commissioning activities were carried out at the International Fusion Materials Irradiation Facility-Engineering Validation and Engineering Design Activities (IFMIF/EVEDA) site in Rokkasho, Japan. Challenging IFMIF requirements led to a number of innovations during design and development. Commissioning required a major effort on calibration and fine setting and led to development of new functionalities. The RFPS was validated under full power and 125-mA deuteron beam loading conditions, in the radio frequency quadrupole (RFQ), demonstrating good performance. This article is an overview about how technical challenges impacted the prototype RFPS design and its functional evolution during commissioning, cavity conditioning, and beam operation of the RFQ