1 00:00:06,280 --> 00:00:08,530 JANET CONRAD: So I really love teaching Junior Lab. 2 00:00:08,530 --> 00:00:11,080 And I really like it the way that it is. 3 00:00:11,080 --> 00:00:13,930 I like its structure and so forth. 4 00:00:13,930 --> 00:00:17,920 But you cannot sit in that lab and not come up with new ideas 5 00:00:17,920 --> 00:00:19,240 for experiments. 6 00:00:19,240 --> 00:00:21,670 And I have one that I would really love to do. 7 00:00:21,670 --> 00:00:23,550 I am on a neutrino experiment. 8 00:00:23,550 --> 00:00:26,050 I was the head of the neutrino experiment for a while, which 9 00:00:26,050 --> 00:00:27,480 was called MiniBooNE. 10 00:00:27,480 --> 00:00:30,755 MiniBooNE stands for Booster Neutrino Experiment. 11 00:00:30,755 --> 00:00:33,280 So MiniBooNE was a small Booster Neutrino Experiment. 12 00:00:33,280 --> 00:00:37,500 And in neutrino physics, small is 800 tons. 13 00:00:37,500 --> 00:00:40,400 It's [CHUCKLES] 40 feet high. 14 00:00:40,400 --> 00:00:42,040 It's a big detector. 15 00:00:42,040 --> 00:00:44,740 And inside of it, it had all of these photo detectors that 16 00:00:44,740 --> 00:00:48,760 lined the inside and when a neutrino interaction occurred, 17 00:00:48,760 --> 00:00:50,380 you got a little bit of light that 18 00:00:50,380 --> 00:00:52,210 came out from the charged particle 19 00:00:52,210 --> 00:00:53,849 that the neutrino produced. 20 00:00:53,849 --> 00:00:56,140 It turns out that charged particle was traveling faster 21 00:00:56,140 --> 00:00:58,180 than the speed of light in a medium, 22 00:00:58,180 --> 00:00:59,980 in the oil that was in the detector. 23 00:00:59,980 --> 00:01:02,380 Nothing goes faster than the speed of light in a vacuum, 24 00:01:02,380 --> 00:01:05,950 but things can go faster than the speed of light in material. 25 00:01:05,950 --> 00:01:09,310 When that happens, you get the equivalent 26 00:01:09,310 --> 00:01:11,440 of a sonic boom, a kind of photonic boom. 27 00:01:11,440 --> 00:01:14,020 Bam, out come a whole bunch of photons. 28 00:01:14,020 --> 00:01:18,970 And people love this idea that things can go faster 29 00:01:18,970 --> 00:01:20,120 than the speed of light. 30 00:01:20,120 --> 00:01:23,700 And it's really so neat to see that light. 31 00:01:23,700 --> 00:01:25,520 It's called shrink of light. 32 00:01:25,520 --> 00:01:28,390 And so, what I would like to do, is 33 00:01:28,390 --> 00:01:31,600 I would like to build a small version of my experiment 34 00:01:31,600 --> 00:01:33,700 MiniBooNE, which we would call TinyBooNE. 35 00:01:33,700 --> 00:01:37,360 [CHUCKLES] And TinyBooNE would be about one meter across. 36 00:01:37,360 --> 00:01:39,670 And it would have photo detectors, tiny little photo 37 00:01:39,670 --> 00:01:40,210 detectors. 38 00:01:40,210 --> 00:01:42,160 They're called silicon photo-multipliers. 39 00:01:42,160 --> 00:01:43,930 All along one side. 40 00:01:43,930 --> 00:01:46,570 And we would put a beta source in the middle of it. 41 00:01:46,570 --> 00:01:48,130 And out would come in electron. 42 00:01:48,130 --> 00:01:51,220 That electron, if you choose the right beta source, 43 00:01:51,220 --> 00:01:54,684 is actually high enough energy that it will actually 44 00:01:54,684 --> 00:01:56,350 produce a little bit of Cherenkov light. 45 00:01:56,350 --> 00:01:58,730 And you can actually see the Cherenkov light. 46 00:01:58,730 --> 00:02:01,810 And so as with any of the Junior Lab experiments, 47 00:02:01,810 --> 00:02:03,874 we have to have two things you can measure. 48 00:02:03,874 --> 00:02:05,290 All the Junior Lab experiments are 49 00:02:05,290 --> 00:02:07,420 designed so there's two things you can measure. 50 00:02:07,420 --> 00:02:09,699 One which one partner focuses on and one which 51 00:02:09,699 --> 00:02:11,350 the other partner focuses on. 52 00:02:11,350 --> 00:02:14,380 And so the things that you would measure in TinyBooNE, 53 00:02:14,380 --> 00:02:17,890 one of them would be how the Cherenkov light turns on 54 00:02:17,890 --> 00:02:22,525 with energy, given the source, which would be a strontium 55 00:02:22,525 --> 00:02:24,370 to yttrium source. 56 00:02:24,370 --> 00:02:28,000 And then the other would be to use that beta decay 57 00:02:28,000 --> 00:02:30,587 spectrum to set a mass limit. 58 00:02:30,587 --> 00:02:32,170 Not a very good mass limit, but a mass 59 00:02:32,170 --> 00:02:34,882 limit on the mass of the neutrino. 60 00:02:34,882 --> 00:02:36,340 And I think it would be really fun. 61 00:02:36,340 --> 00:02:38,120 I would just love to build this. 62 00:02:38,120 --> 00:02:39,730 It's just not possible to sit in there 63 00:02:39,730 --> 00:02:43,831 and not dream up what experiment you would like to do.