Upload File

past reactor experiments (some lessons from history) stuart freedman university of california at...

  • Home
  • Documents
  • Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
46
Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop on the feasibility study of the Daya Bay reactor neutrino experiment Jan. 17-18, 2004 in IHEP, Beijing

Upload: randell-chandler

Post on 17-Jan-2016

217 views

Category:

Documents


0 download

Report

Tags:

TRANSCRIPT

Page 1: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Past Reactor Experiments(Some Lessons From History)

Stuart FreedmanUniversity of California at Berkeley

andLawrence Berkeley National Laboratory

Workshop on the feasibility study of

the Daya Bay reactor neutrino experiment

Jan. 17-18, 2004 in IHEP, Beijing

Page 2: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 3: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Enrico Fermi

Page 4: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Inverse Beta Decay Cross Section and Spectrum

Page 5: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

The first proposal for a neutrino experiment didn’t use a reactor

Page 6: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Poltergeist: the largest scintillator in the world

Page 7: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Neutrino Spectra from Principal Reactor Isotopes

235U fission

Page 8: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

First Direct Detection of the Neutrino

νe +p→ e+ +n

Page 9: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Backgrounds!

Page 10: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 11: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 12: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 13: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 14: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 15: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 16: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Poltergeist1m

KamLAND20 m

Chooz4 m

Long Baseline Reactor Neutrino Experiments

Page 17: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 18: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Correlated Backgrounds from External Neutrons

Palo Verde

Page 19: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Spallation Produced Radio-Isotopes in Liquid Scintillator

Isotope t1/2 Emax

(MeV)Background

- 12B 0.02 s 13.4 Uncorrelated11Be 13.80 s 11.5 Uncorrelated11Li 0.09 s 20.8 Correlated9Li 0.18 s 13.6 Correlated8Li 0.84 s 16.0 Uncorrelated

8He 0.12 s 10.6 Correlated6He 0.81 s 3.5 Uncorrelated

+, EC 11C 20.38 m 0.96 Uncorrelated10C 19.30 s 1.9 Uncorrelated9C 0.13 s 16.0 Uncorrelated8B 0.77 s 13.7 Uncorrelated

7Be 53.3 d 0.48 Uncorrelated

Page 20: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Bugey

Page 21: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 22: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Gosgen

Page 23: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Palo Verde

• 32 mwe

• 12 ton, Gd loaded, scintillating target

• 3 reactors: 11.6 GW

• Baselines 890 m and 750 m

• Expected rate of ~50 evts/day

Page 24: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Palo Verde

Page 25: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Chooz

Page 26: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Underground Vault for Chooz

• 5 ton, Gd loaded, scintillating target

• 300 mwe

• 2 reactors: 8.5 GWl

• Baselines 1115 m and 998 m

• Expected ~25 evts/day

Page 27: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

CHOOZ

Page 28: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 29: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Chooz

Page 30: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 31: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 32: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

KamLANDKamioka Liquid-Scintillator Anti-Neutrino Detector

Page 33: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 34: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

KamLAND Underground Laboratory

Page 35: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 36: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

from 12C(n, )

cap = 188 +/- 23 sec

Page 37: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

20

15

10

5

0

reactor neutrinos geo neutrinos background

25

20

15

10

5

086420

Prompt Energy (MeV)

2.6 MeVanalysis threshold

KamLAND data no oscillation best-fit oscillation

sin22θ = 1.0 Δm2= 6.9 10x -5 eV2

Page 38: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

%Total LS mass 2.1Fiducial mass ratio 4.1Energy threshold 2.1Tagging efficiency 2.1Live time 0.07Reactor power 2.0Fuel composition 1.0Time lag 0.28e spectra 2.5

Cross section 0.2

Total uncertainty 6.4 %

Systematic Uncertainties

E > 2.6 MeV

Page 39: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 40: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

ReactorDetector 1Detector 2

d2

d1

Experimental Design

Page 41: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.

QuickTime™ and aTIFF (Uncompressed) decompressorare needed to see this picture.

Reactor θ13

USA

FranceRussia

Japan

China

Page 42: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 43: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 44: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 45: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop
Page 46: Past Reactor Experiments (Some Lessons From History) Stuart Freedman University of California at Berkeley and Lawrence Berkeley National Laboratory Workshop

Freedman Defamation Complaint

By: Sydney Freedman

Freedman Malvinas

HxRefactored - Mashery - Chuck Freedman

SALT AND BLOOD PRESSURE: CONVENTIONAL ...census/573.pdfSALT AND BLOOD PRESSURE: CONVENTIONAL WISDOM RECONSIDERED DAVID A. FREEDMAN University of California, Berkeley DIANA B. PETITTI

A temporally abstracted Viterbi algorithm (TAV) Shaunak Chatterjee and Stuart Russell University of California, Berkeley July 17, 2011

Measuring q 13 with Reactors Stuart Freedman HEPAP July 24, 2003 Bethesda

PAMELA SAMUELSON...High Technology Entrepreneurs and the Patent System: Results of the 2008 Berkeley Patent Survey, 24 Berkeley Technology L. J. 1255 (2010) (with Stuart J.H. Graham,

Measuring 13 with Reactors Stuart Freedman HEPAP July 24, 2003 Bethesda Reactor Detector 1Detector 2 d2d2 d1d1

JOHN STUART MILL, LECTOR DE TOCQUEVILLEdadun.unav.edu/bitstream/10171/6083/1/84.pdf · Moral and Political Philosophy of John Stuart Mill, University of California Press, Berkeley-Los

Weak Interactions Enrico Fermi Centennial Symposium Stuart Freedman University of California at Berkeley September 28, 2001 Fermi National Accelerator

CS 188: Artificial Intelligence Bayes Nets: Approximate Inference Instructor: Stuart Russell--- University of California, Berkeley

Freedman American Theatre

Freedman Bgp101 N48

First-Order Probabilistic Languages: Into the Unknown Stuart Russell and Brian Milch UC Berkeley

Freedman Coral

2732 Stuart Street - Berkeley, California · 2016-10-06 · 2732 Stuart Street Use Permit #ZP2015-0248 to construct a 307 square-foot, second-story addition on a lot that exceeds

TWQ 1qwaswwe3Spring Freedman

Intellectual Property Protection in the US Software Industry Stuart J.H. Graham & David C. Mowery Haas School of Business U.C. Berkeley

Gerald Freedman

Freedman Racing Party Racebook

Who Is Freedman Seating?

Freedman essential linguistics

Healthcare Compliance: 2014 Stuart Freedman, MPH HSC Chief Compliance Officer Monica Wilson, JD, CHC Manager, HSC Compliance

Cap Freedman 8

Ushering ESPC into the electronic age Elizabeth Stuart Lawrence Berkeley National Laboratory August 13, 2015

Photomask...Stuart Sherwin, Laura Waller, and Andrew Neureuther, University of California Berkeley, Department of Electrical Engineering and Computer Science, Berkeley, USA Isvar Cordova,

Measuring 13 with Reactors Stuart Freedman University of California at Berkeley SLAC Seminar September 29, 2003

CS 188: Artificial Intelligence Learning III: Statistical learning Instructor: Stuart Russell--- University of California, Berkeley

Eli Freedman DTIC

Stuart Hollis Viv Berkeley Development Officer, Learning Difficulties Challenges, approaches and outcomes: Developing Independence through Literacies Learning

EECS at UC Berkeley - Reinforcement learningrussell/talks/aima/...Stuart Russell, UC Berkeley 2 Sequential decision problems Add uncertainty to state-space search →MDP Add sequentiality

Stuart Russell Computer Science Division UC Berkeley

Intro to BGP All-Day Tutorial Avi Freedman [email protected]

Stuart D. Bale University of California, Berkeley · Solar Wind Kinetic Physics and the NASA Parker Solar Probe mission Stuart D. Bale University of California, Berkeley. Outline