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<div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>===============================================================<br>
J-PARC Project
Newsletter <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>
No. 37, July 2009<br>
Japan Proton Accelerator Research Complex under<span style='color:#1F497D'>
operation </span>jointly <span style='color:#1F497D'><o:p></o:p></span></span></p>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>by the
High Energy Accelerator Research Organization (KEK) and<br>
the Japan Atomic Energy Agency (JAEA)<br>
<a href="http://j-parc.jp/index-e.html">http://j-parc.jp/index-e.html</a><span
style='color:#1F497D'><o:p></o:p></span></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'><br>
===============================================================<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>HEADLINES
AND CONTENTS<br>
<br>
1. [Overview]<br>
<br>
BEAM TO NEUTRINO AND INAUGURATION CEREMONY<br>
FROM THE FIRST RUN<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>THE
SCOPE OF RESEARCH DIRECTIONS PUBLISHED BY USER <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>COMMUNITIES
<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span lang=EN-US
style='font-family:"MS UI Gothic"'>NEW LAW FOR JAEA ON OPERATONAL BUDGET<span
style='color:#1F497D'><o:p></o:p></span></span></p>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>BUDGET
REQUEST FOR JFY2010 STARTED<br>
<br>
2. [Accelerator Division]<br>
<br>
SUCCESS OF EXTRACTION TO NEUTRINO TARGET FROM MR<br>
(50GEV SYNCHROTRON)<br>
<br>
3. [Nuclear and Particle Physics Division]<br>
<br>
BEAMLINE FOR NEUTRAL KAON IN PREPARATION<br>
<br>
NEUTRINO BEAM LINE COMMISSIONING AND STATUS OF NEAR<br>
DETECTOR (ND280)<br>
<br>
4. [Materials and Life Science Division]<br>
<br>
THE USER PROGRAM OF 2009A STARTED FROM MAY 30, AND 18<br>
DAYS BEAM TIME HAS BEEN PROVIDED FOR USERS BY JUNE 21.<br>
<br>
TWO CHOPPER INSTRUMENTS HAVE MONOCHROMATED NEUTRONS<br>
BY UTILIZING EITHER A FERMI CHOPPER OR A FAST DISK<br>
CHOPPER FOR THE FIRST TIME.<br>
<br>
THE REPETITION RATE MULTIPLICITY TECHNIQUE BY USING<br>
VARIOUS INCIDENT ENERGIES IN ONE TIME-FRAME HAS<br>
DEMONSTRATED ITS HIGH PERFORMANCE FOR INELASTIC<br>
SCATTERING EXPERIMENTS.<br>
<br>
NEUTRON EXPERTS VISITED MLF ON 7 JULY AND ENJOYED A FULL <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>DAY TOUR<br>
<br>
5. [Nuclear Transmutation Section]<br>
<br>
REVIEW OF PARTITIONING AND TRANSMUTATION TECHNOLOGY<br>
INCLUDING ADS<br>
<br>
6. [Safety Division]<br>
<br>
THE SAFETY INSPECTION OF NEUTRINO EXPERIMENTAL FACILITY<br>
SUCCESSFULLY CONDUCTED BY NUSTEC<br>
<br>
7. [Announcement of Symposia and Meetings]<br>
<br>
8. [Editorial Note]<o:p></o:p></span></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'><br>
-----------------------------------------------------------<br>
1. [Overview] by Shoji NAGAMIYA<br>
-----------------------------------------------------------<br>
<br>
BEAM TO NEUTRINO AND INAUGURATION CEREMONY<br>
<br>
As reported earlier, we succeeded in accelerating
proton beams<br>
to produce neutrino beams at the fast extraction line on April 23.<br>
This brings the total to four beams from J-PARC: neutron beams in May<br>
of 2008, muon beams in September of 2008, kaon beams in February<br>
of 2009 and the neutrino beams in April of 2009.<br>
To celebrate this achievement we organized an inauguration<br>
ceremony of J-PARC on July 6. Many important people joined this<br>
ceremony. We had about 900 people participating. Over 60<br>
eminent figures from abroad joined this ceremony. Two ministers,<br>
many from Diet members, past presidents of JAEA, past Directors of the<br>
Institute of Nuclear Studies at University of Tokyo, top managers<br>
from economical societies, past Presidents of the University of Tokyo, <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>the
local Governor, Mayor of Tokai Village, President of Science Council<br>
of Japan, etc. also joined the ceremony. Two Nobel Laureates, Makoto<br>
Kobayashi and Masatoshi Koshiba, also participated in it. The Director<br>
General at CERN and the Undersecretary of DOE joined via Video.<br>
<br>
FROM THE FIRST RUN<br>
<br>
During these two months, May and June of 2009, we have
had<br>
nice runs for muons and neutrons. Many data have been<br>
accumulated through these two months. Already the first paper<br>
(from muon) was accepted for publication in Physical Review Letters.<br>
More analysis will take place in the summer of this year.<br>
<br>
THE SCOPE OF RESEARCH DIRECTIONS PUBLISHED BY USER <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>COMMUNITIES<br>
<br>
The User Communities finally published a 50-page
document to<br>
describe the scope of the research direction for J-PARC.<br>
The communities participating in this document are:<br>
1) high-energy physics, 2) nuclear physics, 3) neutron science,<br>
4) muon science, 5) nuclear transformation, 6) industry and 7)<br>
accelerator. Individual descriptions for seven different areas<br>
are given first and, then, the chapter was concluded by the<br>
description of the first five years, the second ten years and beyond<br>
for the entire J-PARC.<br>
Professor Taku Yamanaka (Osaka Univ.) is the chair of this<br>
committee. This document will provide us with the most useful <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>guideline
for the future of the J-PARC. It was distributed widely in <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>the
community. English publication (at least part of it) is under <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>discussion.<br>
<br>
NEW LAW FOR JAEA ON OPERATONAL BUDGET<br>
<br>
A new law was passed by the Congress to grant the<br>
operation scheme including the operational budget for the portion <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>of
J-PARC built by JAEA. This new law was created for the purpose<br>
of allowing a broad usage of J-PARC, since JAEA does not carry<br>
the function of a user program as a mission of JAEA. By having this<br>
new law, the J-PARC will be completely open to universities,<br>
institutions, internationals and industries. <br>
Accordingly, the JAEA portion of the operational budget shall<br>
be controlled directly by the Government from JFY2011.<br>
The law is effective from July 1st of 2009. The KEK portion<br>
of the operational budget remains the same as it was.<br>
<br>
BUDGET REQUEST FOR JFY2010 STARTED<br>
<br>
The budget request for JFY2010 has been started.<br>
J-PARC will request 7 cycle operations (5 cycle operations this<br>
fiscal year while a full-year operation amounts to 9 cycles).<br>
In addition, many requests for construction of equipment have<br>
been sent to the Government, including 1) energy recovery<br>
of Linac, 2) ultra-slow muon channel, 3) power upgrade for main<br>
ring, 4) high momentum beam line for hadrons, 5) neutron <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>instrumentations,
etc.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'><br>
-------------------------------------------------------------<br>
2. [Accelerator Division] by Ainosuke ANDO<br>
-------------------------------------------------------------<br>
<br>
SUCCESS OF EXTRACTION TO NEUTRINO TARGET FROM MR<br>
(50GEV SYNCHROTRON)<br>
<br>
The 30 GeV proton beam in MR was successfully
extracted to the<br>
neutrino target by " FX: fast extraction " (one turn extraction by
kickers<br>
and septum-magnets) at 19:09 on April 23, and this operation was<br>
approved by the Radiation Safety Authority of the Government on<br>
May 28 through passing the official investigation.<br>
MR can accept eight bunches (or four batches) from RCS<br>
(3GeV Rapid Cycle Synchrotron). After checking the hardware status<br>
and the timing system, six-bunch operation in FX mode was successfully<br>
demonstrated with 4.3E12 protons in the single-shot operation and found<br>
no problems. This intensity corresponds to 5.6 kW, if operated at 1/3.6Hz.<br>
MR will be operated in six-bunch mode from this October and much effort<br>
will be extended to serve the beam with the maximum power of 100 kW <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>at 1/3.6
Hz operation. This can be achieved when the RFQ (Radio <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>Frequency
Quadrupole linac) is ready to produce 300kW in the RCS.<br>
<br>
Because of the RFQ problem, the MLF (Materials and
Life Science <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>Facility)
user operation with 20kW beam power was performed with the<br>
cyclic operation of 2-day user-operation and one-day RFQ conditioning<br>
from May 29 to June 22. The MR tuning was also done in parallel with<br>
the MLF user operation. After the improvement of the vacuum system <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>and a
new conditioning scheme of the RFQ, stable 100kW operation is <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>expected
from this October (next common use run).<br>
<br>
-----------------------------------------------------------<br>
3. [Nuclear and Particle Physics Division]<br>
by Tadashi NOMURA, Toshifumi TSUKAMOTO, Yoshikazu YAMADA<br>
-----------------------------------------------------------<br>
<br>
BEAMLINE FOR NEUTRAL KAON IN PREPARATION<br>
<br>
A high intensity accelerator opens up an opportunity
to study<br>
extremely rare processes, which may include contributions from<br>
physics beyond the Standard Model. A study of the CP-violating<br>
rare decay, a long-lived neutral kaon (KL) decays into a neutral<br>
pion and two neutrinos, is scheduled to be performed in the<br>
Hadron Experimental Hall. The KOTO experiment, whose name stands<br>
for "K0 at TOKAI", is now constructing a new neutral beamline.<br>
Since the predicted probability of the process is an order of<br>
10ppt (parts per trillion), a challenge of the experiment is to<br>
reduce backgrounds below that level. A well-collimated beam is<br>
one of the key points in the experiment. The beamline was<br>
carefully designed to prevent unwanted beam particles from<br>
invading the detector region surrounding the beam. It basically<br>
consists of two long collimators (4m and 5m) and a sweeping<br>
magnet between them. Fabrication of the beamline components<br>
has been done in the last fiscal year, and now, the construction of<br>
the beamline is ongoing. It will continue during this summer,<br>
and will be ready to operate by this autumn. As a first step of<br>
the experiment, various properties of the beamline, such as a<br>
beam profile, KL yield and spectrum, and neutron yield, will be<br>
measured in the autumn and winter machine times in FY2009.<br>
<br>
The 2009 Kaon International Conference (KAON09) was
held at<br>
EPOCHAL TSUKUBA from June 9 to 12 with 69 participants<br>
(including 35 from abroad). Recent topics and future prospects<br>
related to K mesons were discussed. Participants also took a tour<br>
of J-PARC and looked at the construction of the beamline.<br>
See the conference web site: <span class=MsoHyperlink>http://kaon09.kek.jp/</span><br>
<br>
NEUTRINO BEAM LINE COMMISSIONING AND STATUS OF <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>NEAR
DETECTOR (ND280)<br>
<br>
After the first beam in April, the second beam
commissioning of<br>
the neutrino beam facility commenced on May 22nd and continued <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>until
May 28th. In this period, the functionality of the beam monitors <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>and the
response function of the magnets were checked. Based on <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>this
investigation, the orbit and profile of the primary proton beam <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>were
fine-tuned. Radiation safety inspection by the authority of the <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>government
was undertaken during continuous beam operation on <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>May
28th. The inspection was passed resulting in the granting of a <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>license
to operate the neutrino facility with up to 1.2 kW beam power.<br>
<br>
Higher beam power operation with a fully equipped
target station <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>is
planed following the installation of the second and third horns during<br>
this summer. Components of the near detector, ND280, are currently<br>
arriving at J-PARC. Newly delivered detectors are the pi-zero detector<br>
(P0D), one of two Fine Grained Detector (FGD) modules and one of <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>three
Time Projection Chamber (TPC) modules.<br>
Assembly, checks and tests are underway. One on-axis neutrino monitor<br>
(INGRID) module is already under operation in the Neutrino Monitor (NM)<br>
building and the remaining modules under assembly will be installed in<br>
July and August. The Side Muon Range Detector (SMRD) installation <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>has been
ongoing since March.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'><br>
-----------------------------------------------------------<br>
4. [Materials and Life Science Division] by Yujiro IKEDA<br>
-----------------------------------------------------------<br>
<br>
THE USER PROGRAM OF 2009A STARTED FROM MAY 30, AND 18<br>
DAYS BEAM TIME HAS BEEN PROVIDED FOR USERS BY JUNE 21.<br>
<br>
TWO CHOPPER INSTRUMENTS HAVE MONOCHROMATED <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>NEUTRONS
BY UTILIZING EITHER A FERMI CHOPPER OR A FAST <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>DISK
CHOPPER FOR THE FIRST TIME.<br>
<br>
THE REPETITION RATE MULTIPLICITY TECHNIQUE BY USING<br>
VARIOUS INCIDENT ENERGIES IN ONE TIME-FRAME HAS<br>
DEMONSTRATED ITS HIGH PERFORMANCE FOR INELASTIC<br>
SCATTERING EXPERIMENTS.<br>
<br>
NEUTRON EXPERTS VISITED MLF ON 7 JULY AND ENJOYED A <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>FULL DAY
TOUR<br>
<br>
1.Neutron Source<br>
The proton beam transport line, the conventional
facility and the<br>
control system were operated normally during beam operation<br>
runs from April to June. The hydrogen pump to supply super-critical<br>
hydrogen to moderators was tripped several times by abnormal<br>
vibration of the rotor shaft. During the summer shutdown period,<br>
an investigation will be carried out on the event. Corrosion damage<br>
was found on the electroformed nickel piece attached on the outside<br>
surface of the mercury target container, which is used to measure<br>
the vibration induced by protons bombarding the mercury target.<br>
The corrosion might be caused by nitric acid, which is a radio-chemical<br>
product from residual air with moisture in a He-gas atmosphere.<br>
Introduction of a He-gas circulation system with moisture absorbent<br>
has been installed to prevent the corrosion. A spare target vessel is<br>
being fabricated. The beam window of the mercury target vessel was<br>
welded without any detrimental residual strain along welding lines.<br>
<br>
2. Neutron Science<br>
Commissioning of instruments has been carried out
quite well<br>
in May and June. Two chopper instruments have monochromated<br>
neutrons by utilizing either a Fermi chopper or a fast disk chopper<br>
for the first time, and we have obtained quite good results. <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>Especially
the achievement of a Repetition Rate Multiplicity <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>technique
by using various incident energies in one time-frame <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>has been
demonstrated, and we are convinced that such a new <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>technique
can give great efficiencies for inelastic scattering <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>experiments.
Not only the cutting edge technology of the <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>instruments,
but an event recording technique, which has been <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>introduced
to Materials and Life Science Facility (MLF) for the <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>first
time as a data acquisition system for a neutron facility as <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>was
taken in Spallation Neutron Source (SNS) too, turns out to <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>be of
great importance for achieving the new innovative technique.<br>
As for diffraction instruments, most of them have accumulated<br>
statistics from standard samples in preparation for full analysis for<br>
real measurements. In addition to the currently operational/under-<br>
construction instruments, a construction budget has been funded <br>
for two more instruments. These are a back-scattering instrument,<br>
DNA, and a wide-Q SANS (Small-angle Neutron Scattering),<br>
Taikan, and will be operational in 2011. Now 15 instruments have<br>
been funded and 8 of them are operational and open for users.<br>
<br>
3. Neutron Optics and Detectors<br>
A 1-dimensional elliptic mirror has been developed in
combination<br>
with a supermirror (m=4) coated with ion-beam sputtering and<br>
precise elliptic surface figured with numerically-controlled local wet<br>
etching process. Wideband neutrons of lambda were<span style='color:#1F497D'> </span>focused
with <span style='color:#1F497D'><o:p></o:p></span></span></p>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>focal
spot size down to 0.25 mm, peak intensity gain up to 6 <span style='color:#1F497D'><o:p></o:p></span></span></p>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>without
significant diffuse scattering.<br>
A new photon-counting two-dimensional detector system using<br>
new ZnS/B scintillator sheets and wavelength-shifting (WLS) fiber<br>
arrays has been installed and is in stable operation at a single-crystal<br>
neutron diffractometer for biological and chemical crystallography<br>
named "iBIX". An ENGIN-X-type linear scintillation neutron detector <span
style='color:#1F497D'><o:p></o:p></span></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>system
has been installed and is in stable operation for the <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>engineering
materials diffractometer "TAKUMI".<br>
<br>
4. Neutron Experts Visited MLF<br>
After the J-PARC Inaugural Ceremony in Tokyo, neutron
experts <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>visited
MLF on 7 July and enjoyed a full day tour. Those are Andrew <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>Harrison,
Ruep Lechner, Thom Mason, Feri Mezei, Abdul Aziz Mohamed, <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>Christina
Oyon, Je-Geun Park, Mike Rowe, Rita Russina, Andrew Taylor, <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>John
White and other distinguished guests.<br>
<br>
5. Muon Science<br>
From March to April, 2009, we have installed the
front-end<br>
components of the super-omega muon beam channel adjacent to<br>
the graphite production target in the 3 GeV proton beamline.<br>
They consist of the radiation resistant solenoid magnet made of<br>
MIC, which has a large acceptance of 400 msr to capture surface<br>
muons efficiently and a gate valve having a kapton window to prevent<br>
condensation of tritium on the superconducting curved solenoid<br>
magnet. Those installations were successfully completed and <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>evacuation
tests through the pillow seal vacuum connection <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>demonstrated
no leakage finally. From May to June, 2009, we have <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>had a
beam commissioning and four users programs to use pulsed <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>muon
beam at MUSE at the D1 and D2 area.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'><br>
-----------------------------------------------------------<br>
5. [Nuclear Transmutation Section] by Tsujimoto Hirofumi<br>
-----------------------------------------------------------<br>
<br>
REVIEW OF PARTITIONING AND TRANSMUTATION TECHNOLOGY<br>
INCLUDING ADS<br>
<br>
The Japan Atomic Energy Commission (JAEC) reviewed the<br>
Partitioning and Transmutation (P&T) technologies including the<br>
accelerator driven system (ADS). The JAEC issued a report entitled<br>
"Current Status and a Way Forward to Promote the Research and<br>
Development of Partitioning and Transmutation Technologies" in April.<br>
The report summarized that P&T technologies will contribute to the<br>
rational design of a nuclear waste disposal system, and the research <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>and
development should be undertaken steadily to build up basic data <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>for the
discussion of its feasibility. For the Transmutation Physics<br>
Experimental Facility (TEF-P) planned in the second phase of the <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>J-PARC
project, the report recommended that it should be discussed<br>
continuously as the integral experimental facility to study the<br>
transmutation system not only for ADS but also for FBR (fast breeder<br>
reactor).<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'><br>
-----------------------------------------------------------<br>
6. [Safety Division]<br>
by Minoru TAKASAKI, Taichi MIURA and Hiroshi NAKASHIMA<br>
-----------------------------------------------------------<br>
<br>
THE SAFETY INSPECTION OF NEUTRINO EXPERIMENTAL FACILITY<br>
SUCCESSFULLY CONDUCTED BY NUSTEC<br>
<br>
The inspection of the Neutrino Experimental Facility
(NU) during the<br>
beam operation was conducted on May 28, 2009, by the Nuclear Safety<br>
Technology Center (NUSTEC): the inspection items were measurements<br>
of ambient doses around the radiation control areas and at the <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>boundary
of the J-PARC facility. In this inspection, the fast extraction <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>part of
50GeV proton synchrotron (MR) ring and the arc line for the<br>
superconducting magnets were included. The designed energy and <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>power
were 30 GeV and 1.2 kW, respectively. The beam intensity was <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>about
10% of the design value. All measured doses did not exceed the <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>dose
limits specified by law owing to the sufficient shielding having been<br>
designed properly.<br>
<br>
The 7th Radiation Safety Committee of J-PARC met on<br>
June 2, 2009, to discuss the application of 3GeV Rapid Cycling<br>
Synchrotron, Materials and Life Science Facility, MR, Nuclear and<br>
Particle Physics Facility (HD), and NU. The main change points are<br>
the enlargement of two secondary beam lines in HD: K1.8 and KL,<br>
and the beam-intensity upgrade in MR and NU.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'><br>
-----------------------------------------------------------<br>
7. [Announcement of Symposia and Meetings]<br>
-----------------------------------------------------------<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span lang=EN-US style='font-family:"MS UI Gothic"'>-----------------------------------------------------------<br>
8. [Editorial Note]<br>
-----------------------------------------------------------<br>
In case you do not wish to receive this Newsletter in the future,<br>
please send an email to <span class=MsoHyperlink>news-l-ctl@ml.j-parc.jp</span><br>
and simply write one sentence in the body of the message as<br>
unsubscribe<br>
If you wish to receive, write one sentence in the body of the<br>
message as<br>
subscribe<br>
You can get a help with a sentence of "help" in the body.<br>
Information on the project can be also obtained at the Web site:<br>
<span class=MsoHyperlink>http://j-parc.jp/index-e.html</span><br>
<br>
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++<br>
Editorial Board:<br>
Masatoshi ARAI (chair): <span class=MsoHyperlink>masatoshi.arai@j-parc.jp</span><br>
Yujiro IKEDA: <span class=MsoHyperlink>ikeda.yujiro@jaea.go.jp</span><br>
Nobuo OUCHI: <span class=MsoHyperlink>ouchi.nobuo@jaea.go.jp</span><br>
Shinya SAWADA: <span class=MsoHyperlink>shinya.sawada@kek.jp</span><br>
Toshifumi TSUKAMOTO: <span class=MsoHyperlink>toshifumi.tsukamoto@kek.jp</span><br>
English Editor: Dick MISCHKE <span class=MsoHyperlink>mischke@triumf.ca</span><br>
Secretary: Chikako KAIBARA <span class=MsoHyperlink>kaibara.chikako@jaea.go.jp</span><br>
++++++++++++++++End of Letter+++++++++++++++++++++++++++++++ <o:p></o:p></span></p>
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