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Technical Visit to Daya Bay Neutrino Experiment Laboratory
 


Date, time & venue

2016-11-19;7:20 a.m.;Daya Bay Neutrino Experiment Laboratory, Daya Bay Nuclear Power Base

 

Technical Visit to Daya Bay Neutrino Experiment Laboratory, Daya Bay, Shenzhen

 

Visit site

Daya Bay Neutrino Experiment Laboratory, Daya Bay Nuclear Power Base

 

Date, Assembly Time & Assembly Place

19 November 2016 (Saturday); 7:20 am; in front of 7-Eleven Shop, beside Exit F (To Fuk Road) of MTR Kowloon Tong Station, at the junction of Kent Road and True Light Lane, Kowloon Tong (return to Assembly Place at around 4:30 pm, same day)

 

Programme highlight

The visit will include a presentation on neutrino and a visit of the Experiment Laboratory, as well as a general presentation on nuclear power and a site visit of the Daya Bay Nuclear Power Base.  The primary aim is to promote the understanding of members regarding a frontier topic in physics.

 

Registration and Enquiry

The number of participants will be limited to 30 and applicants will be served on a first-come-first-serve basis. Priority will be given to the members of Nuclear Division. Valid travel documents for entering into Shenzhen will be required. Please return standard reply form to Mr. Barry Lee via Email: nuclear@ne.hkie.org.hk by 5 November 2016. Successful applicants will be charged a non-refundable amount of HK$100 each to cover the administration of the visit and will be notified by email or telephone. Upon acceptance of the applications, the participants will be required to submit personal information on their travel documents for processing the entry into the power site premises. For enquiries, please contact Mr. Barry Lee at khlee@emsd.gov.hk or Tel: 3155 3950.

 

 





Report

 

Technical Visit to Daya Bay Neutrino Experimental Facility in Shenzhen

 

Prepared By Ir Richard Fung

 

The Nuclear Division held a technical visit to the Daya Bay Neutrino Experimental Facility on 19 November 2016. The delegation was led by Ir Dr. Vincent Fong, the Chairman of Nuclear Division with 40 participants. Besides attending a presentation on nuclear energy and viewing the nuclear power stations at Daya Bay, the focus of the visit was an introduction by Professor K B Luk of the University of California, at Berkeley on our current understanding of neutrino based on the results of the experiment and a visit of the facility.

 

The experiment is an international collaboration that began in 2004 to include researchers in China, the US, and also from three local universities, to look into neutrinos as the fundamental particles beyond our established concept of protons, neutrons and electrons as subatomic particles, and has been selected as a top 10 scientific accomplishment in 2012.  The Daya Bay location offers unique advantage by having its six reactors offering a much larger quantity of anti-neutrinos at a well-controlled rate than other artificial sources or the nature, hence enabling a more precise interpretation of measurements and permitting better correlation.  Eight detectors are located in three underground chambers that are carefully sited to better measure anti-neutrino “disappearance”.  Results announced since 2012 have further explain an earlier observation that we measured only a third of the neutrinos arriving on earth from the sun, and confirmed an earlier speculation that such low measurements are due to neutrinos “oscillating” or changing their appearance.  These two pieces of work have each earned a Nobel Prize.

 

The experiment also measures how fast anti-neutrinos disappear, and hence identifying a new kind of neutrino “oscillation”, inferring from which that neutrinos do have small mass, and it helps to design the next experiment in Jiangmen which may answer why there is more matter than anti-matter in this universe.

 

The participants certainly find the visit enlightening, and Professor Luk has been very enthusiastic in providing clear answers to the many interesting questions of the participants.

  

 

Photo Caption: A Group Photo of the Participants in the Far Experimental Hall EH3, which contains 4 anti-neutrino detectors and at the end of a 3.5km tunnel.

 

 
 

 

 
 
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