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Milestone-Proposal talk:The 20 inch Diameter Photomultiplier Tubes

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wordsmithing102:21, 27 August 2013
a few comments404:53, 19 August 2013
Technology and Engineering in Support of Basic Science322:12, 12 August 2013

wordsmithing

What is the relationship between the professor and the company? If there is a link, it should be made explicit. Otherwise, I agree with ggcooke that other applications should be included, the professor not named, but you could mention it led to a nobel prize.

Also, please add commas before the non-restrictive "which" clauses.

Allisonmarsh01:26, 14 August 2013
 

Hamamatsu Photonics K.K. began developing 20-inch diameter photomultiplier tubes at Toyooka Factory in 1979 for a 3000-ton-water Cherenkov particle detector, Kamiokande-II, upon a request by Professor Masatoshi Koshiba. 1071 PMTs mounted on it collected photons induced in the water by the particles falling on it. It detected a neutrino burst in the Supernova SN1987A to bring him a Nobel Prize in Physics in 2002.

I would like to propose the above sentence for a revised version of the Plaque Citation, in responce to the question/comment by Allisonmarsh.

Shizuo Mizushina02:21, 27 August 2013
 
 

a few comments

This proposal is fine. I thought there was a miscount in the number of PMTs somewhere in the documents provided. The citation can better indicate what the PMT's are for: support research in proton decay, or elementary particle physics, or spotting supernovas.

Ggcooke19:59, 16 July 2013
 

The unmber of the PMTs used in the Kamiokande-II detector was 1071 (= 948 + 123) mounted on the cylindrical surface (15.6m radius and 16.1m height) of Cherenkov detector filled with 3000 metric tons of water. Of the 1071 PMTs, 948 units were viewing the inner region of the cylinder, while 123 viewing the outer region surrounding the inner cylinder. (Refer to: FIG. 1, Ref [7], Hirata et al. and Fig.1, Ref [10], A. Suzuki et al.) The cosmic particles such as the neutrinos from the supernova hitting the water water in the tank induced photons, which were detected by the PMTs.

Plaque citation revised:

Hamamatsu Photonics K.K. began developing 20-ich diameter photomultiplier tubes at Toyooka Factory in 1979 for a water-filled-Cherenkov elementary particle detector, Kamiokande-II. 1071 PMTs on it collected photons induced in the water by the elementary particles falling on it. Kamiokande-II detected a neutrino burst in the Supernova SN1987A in 1987, opening a window in astrophysics which earned Professor Masatoshi Koshiba a Nobel Prize in 2002.

Shizuo Mizushina00:15, 4 August 2013
 

Many thanks.

[edit] ==================

Hamamatsu Photonics K.K. began developing 20-inch diameter photomultiplier tubes at Toyooka Factory in 1979 for a water-filled-Cherenkov elementary particle detector, Kamiokande-II. 1071 PMTs on it collected photons induced in the water by the elementary particles falling on it. Kamiokande-II detected a neutrino burst in the Supernova SN1987A in 1987, opening a window in astrophysics which earned Professor Masatoshi Koshiba a Nobel Prize in 2002.

[edit] ==================

I added "i" between "20-" and "nch". Otherwise we are happy with the revised citation as proposed.

We clearly understand that it is subject to change in the course of evaluating milestone nominations by the committee. It is fine by us.

Best regards

Atsushi.tsujimura04:53, 19 August 2013
 
 

It would be better if the proposal commemorated more than one event of use of the photomultipliers, even if it did lead to a Nobel prize, What other applications have been made possible?

Mischaschwartz15:46, 7 August 2013
 

I support the nomination to become an IEEE Milestone.

Apyuste03:29, 12 August 2013
 
 

Technology and Engineering in Support of Basic Science

This proposal is well prepared, especially as augmented by the references provided. The proposed IEEE milestone recognizes technology that enabled Nobel Award winning science. It is a pleasure to support this proposal.

Tbickart04:51, 5 July 2013
 

Thank you very much.

Shizuo Mizushina00:17, 4 August 2013
 

I think its good to go.

I.engelson23:59, 10 August 2013
 

Though this development was done specifically for a very special purpose, it was an epoch making event and certainly advanced the cosmic science. I support the Proposal.

Hiro Kawamoto

Kawamoto22:10, 12 August 2013