From kuhn at jlab.org Wed Aug 12 08:13:44 2020 From: kuhn at jlab.org (Sebastian Kuhn) Date: Wed, 12 Aug 2020 12:13:44 +0000 Subject: [dsg-hallb_rtpc] [New Logentry] RTPC Gas Supplies In-Reply-To: <202008120250.07C2o2hm022350@logbooks.jlab.org> References: <202008120250.07C2o2hm022350@logbooks.jlab.org> Message-ID: Let me add that we REALLY would like to have a (nearly) FULL and lightly used D2 bottle for the rest of the run (as soon as possible) - purity of our target gas is the most important ingredient to a successful experiment, and any contamination that might come from old age / low feed pressure is very detrimental. Thanks - Sebastian On Aug 11, 2020, at 10:50 PM, hattawy at jlab.org wrote: RTPC Gas Supplies * Edit * Delete Lognumber 3825303. Submitted by hattawy on Tue, 08/11/2020 - 22:47. Logbooks: HBLOG HBRTPC Entry Makers: hattawy - The D2 target gas bottle reads ~ 150 psi. Will need more D2 soon. - The RTPC drift gas pressure (4 bottles combined) reads 1500 psi -------------- next part -------------- An HTML attachment was scrubbed... URL: From gayoso at jlab.org Wed Aug 12 17:43:33 2020 From: gayoso at jlab.org (Carlos Ayerbe Gayoso) Date: Wed, 12 Aug 2020 21:43:33 +0000 Subject: [dsg-hallb_rtpc] Deuterium bottle Regulator Message-ID: Hi all, as mentioned by Stephan, the high pressure indicator of the deuterium bottle seems to show lower pressure that should be (I checked again and it shows ~ 1500psi) If the plan is to change the regulator (I don't know) and the problem is to find one (also, I don't know) I wonder if one of the regulators from W&M is available and if can be used. In the meanwhile, it seems to work well. Cheers -Carlos -------------- next part -------------- An HTML attachment was scrubbed... URL: From jpoudel at jlab.org Wed Aug 12 17:51:51 2020 From: jpoudel at jlab.org (Jiwan Poudel) Date: Wed, 12 Aug 2020 17:51:51 -0400 Subject: [dsg-hallb_rtpc] Deuterium bottle Regulator In-Reply-To: References: Message-ID: <3FBC3C1B-6A50-46FF-B945-C0EBBB2254DF@jlab.org> Hello Carlos, If you see carefully, the needle in the pressure gauge is at ~1500 touching the scale pad of gauge. So to make sure the gauge is showing right pressure of bottle, we need to change it. For now it works, but need to change. I checked this, closing the gas bottle for a while while purging the target and it could not go down unless tapped by hand. Thank you, Jiwan > On Aug 12, 2020, at 5:43 PM, Carlos Ayerbe Gayoso wrote: > > Hi all, > > as mentioned by Stephan, the high pressure indicator of the deuterium bottle seems to show lower pressure that should be (I checked again and it shows ~ 1500psi) > > If the plan is to change the regulator (I don't know) and the problem is to find one (also, I don't know) I wonder if one of the regulators from W&M is available and if can be used. In the meanwhile, it seems to work well. > > Cheers > > -Carlos > _______________________________________________ > dsg-hallb_rtpc mailing list > dsg-hallb_rtpc at jlab.org > https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc -------------- next part -------------- An HTML attachment was scrubbed... URL: From mohammad.hattawy at gmail.com Wed Aug 12 18:03:46 2020 From: mohammad.hattawy at gmail.com (mhattawy@odu.edu) Date: Wed, 12 Aug 2020 18:03:46 -0400 Subject: [dsg-hallb_rtpc] [EXTERNAL] Re: Deuterium bottle Regulator In-Reply-To: <3FBC3C1B-6A50-46FF-B945-C0EBBB2254DF@jlab.org> References: <3FBC3C1B-6A50-46FF-B945-C0EBBB2254DF@jlab.org> Message-ID: Please include Bob Miller and Morgan Cook in these emails exchanges. Mohammad On Wed, Aug 12, 2020 at 5:51 PM Jiwan Poudel wrote: > Hello Carlos, > > If you see carefully, the needle in the pressure gauge is at ~1500 > touching the scale pad of gauge. So to make sure the gauge is showing right > pressure of bottle, we need to change it. For now it works, but need to > change. > > I checked this, closing the gas bottle for a while while purging the > target and it could not go down unless tapped by hand. > > Thank you, > Jiwan > > > On Aug 12, 2020, at 5:43 PM, Carlos Ayerbe Gayoso wrote: > > Hi all, > > as mentioned by Stephan, the high pressure indicator of the deuterium > bottle seems to show lower pressure that should be (I checked again and it > shows ~ 1500psi) > > If the plan is to change the regulator (I don't know) and the problem is > to find one (also, I don't know) I wonder if one of the regulators from W&M > is available and if can be used. In the meanwhile, it seems to work well. > > Cheers > > -Carlos > _______________________________________________ > dsg-hallb_rtpc mailing list > dsg-hallb_rtpc at jlab.org > https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc > > > _______________________________________________ > dsg-hallb_rtpc mailing list > dsg-hallb_rtpc at jlab.org > https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc > -- Best regards, Mohammad Hattawy. -------------- next part -------------- An HTML attachment was scrubbed... URL: From beng at jlab.org Wed Aug 12 18:05:07 2020 From: beng at jlab.org (Brian Eng) Date: Wed, 12 Aug 2020 22:05:07 +0000 Subject: [dsg-hallb_rtpc] Deuterium bottle Regulator In-Reply-To: References: Message-ID: Unless someone has the exact model that is currently installed it's not as straight forward as just finding another regulator and swapping them out. In any event since the regulator is part of the pressure system make sure to coordinate the work with Bob. ________________________________ From: dsg-hallb_rtpc on behalf of Carlos Ayerbe Gayoso Sent: Wednesday, August 12, 2020 5:43 PM To: dsg-hallb_rtpc at jlab.org ; Sebastian Kuhn Cc: Morgan Cook IV Subject: [dsg-hallb_rtpc] Deuterium bottle Regulator Hi all, as mentioned by Stephan, the high pressure indicator of the deuterium bottle seems to show lower pressure that should be (I checked again and it shows ~ 1500psi) If the plan is to change the regulator (I don't know) and the problem is to find one (also, I don't know) I wonder if one of the regulators from W&M is available and if can be used. In the meanwhile, it seems to work well. Cheers -Carlos -------------- next part -------------- An HTML attachment was scrubbed... URL: From mohammad.hattawy at gmail.com Wed Aug 12 18:06:37 2020 From: mohammad.hattawy at gmail.com (mhattawy@odu.edu) Date: Wed, 12 Aug 2020 18:06:37 -0400 Subject: [dsg-hallb_rtpc] [EXTERNAL] Re: Deuterium bottle Regulator In-Reply-To: References: Message-ID: I will be providing tonight during my shift some pics and specifications for the model we are using. On Wed, Aug 12, 2020 at 6:05 PM Brian Eng wrote: > Unless someone has the exact model that is currently installed it's not as > straight forward as just finding another regulator and swapping them out. > > In any event since the regulator is part of the pressure system make sure > to coordinate the work with Bob. > > ------------------------------ > *From:* dsg-hallb_rtpc on behalf of > Carlos Ayerbe Gayoso > *Sent:* Wednesday, August 12, 2020 5:43 PM > *To:* dsg-hallb_rtpc at jlab.org ; Sebastian Kuhn < > kuhn at jlab.org> > *Cc:* Morgan Cook IV > *Subject:* [dsg-hallb_rtpc] Deuterium bottle Regulator > > Hi all, > > as mentioned by Stephan, the high pressure indicator of the deuterium > bottle seems to show lower pressure that should be (I checked again and it > shows ~ 1500psi) > > If the plan is to change the regulator (I don't know) and the problem is > to find one (also, I don't know) I wonder if one of the regulators from W&M > is available and if can be used. In the meanwhile, it seems to work well. > > Cheers > > -Carlos > _______________________________________________ > dsg-hallb_rtpc mailing list > dsg-hallb_rtpc at jlab.org > https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc > -- Best regards, Mohammad Hattawy. -------------- next part -------------- An HTML attachment was scrubbed... URL: From jpoudel at jlab.org Wed Aug 12 18:11:11 2020 From: jpoudel at jlab.org (Jiwan Poudel) Date: Wed, 12 Aug 2020 18:11:11 -0400 Subject: [dsg-hallb_rtpc] [EXTERNAL] Re: Deuterium bottle Regulator In-Reply-To: References: Message-ID: <77C2E7E8-E5DE-4BE5-B629-349D06104B75@jlab.org> Morgan looked at it and told Stephen that he does not have a spare right now. Morgan also confirmed that regulator is working, and only one gauge (higher pressure side) seems bad. So we might get the replacement of that one soon. > On Aug 12, 2020, at 6:06 PM, mhattawy at odu.edu wrote: > > I will be providing tonight during my shift some pics and specifications for the model we are using. > > On Wed, Aug 12, 2020 at 6:05 PM Brian Eng > wrote: > Unless someone has the exact model that is currently installed it's not as straight forward as just finding another regulator and swapping them out. > > In any event since the regulator is part of the pressure system make sure to coordinate the work with Bob. > > From: dsg-hallb_rtpc > on behalf of Carlos Ayerbe Gayoso > > Sent: Wednesday, August 12, 2020 5:43 PM > To: dsg-hallb_rtpc at jlab.org >; Sebastian Kuhn > > Cc: Morgan Cook IV > > Subject: [dsg-hallb_rtpc] Deuterium bottle Regulator > > Hi all, > > as mentioned by Stephan, the high pressure indicator of the deuterium bottle seems to show lower pressure that should be (I checked again and it shows ~ 1500psi) > > If the plan is to change the regulator (I don't know) and the problem is to find one (also, I don't know) I wonder if one of the regulators from W&M is available and if can be used. In the meanwhile, it seems to work well. > > Cheers > > -Carlos > _______________________________________________ > dsg-hallb_rtpc mailing list > dsg-hallb_rtpc at jlab.org > https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc > > > -- > Best regards, > Mohammad Hattawy. > _______________________________________________ > dsg-hallb_rtpc mailing list > dsg-hallb_rtpc at jlab.org > https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc -------------- next part -------------- An HTML attachment was scrubbed... URL: From gayoso at jlab.org Wed Aug 12 18:52:41 2020 From: gayoso at jlab.org (Carlos Ayerbe Gayoso) Date: Wed, 12 Aug 2020 22:52:41 +0000 Subject: [dsg-hallb_rtpc] [EXTERNAL] Re: Deuterium bottle Regulator In-Reply-To: <77C2E7E8-E5DE-4BE5-B629-349D06104B75@jlab.org> References: , <77C2E7E8-E5DE-4BE5-B629-349D06104B75@jlab.org> Message-ID: Ok, please everybody calm down. The intention of my email was trying to find a solution to something that IT WAS not a problem and not urgent. Bryan has been very kind explaining that it is not as simple as take the first regulator, like one from W&M; and before my email, Stephan and Jiwan said that Morgan is taken care of it. My intention was to provide a fast resolution. Thanks, everybody. -Carlos ________________________________ From: dsg-hallb_rtpc on behalf of Jiwan Poudel Sent: Wednesday, August 12, 2020 6:11 PM To: dsg-hallb_rtpc at jlab.org ; mhattawy at odu.edu Cc: Bob Miller ; Morgan Cook IV Subject: Re: [dsg-hallb_rtpc] [EXTERNAL] Re: Deuterium bottle Regulator Morgan looked at it and told Stephen that he does not have a spare right now. Morgan also confirmed that regulator is working, and only one gauge (higher pressure side) seems bad. So we might get the replacement of that one soon. On Aug 12, 2020, at 6:06 PM, mhattawy at odu.edu > wrote: I will be providing tonight during my shift some pics and specifications for the model we are using. On Wed, Aug 12, 2020 at 6:05 PM Brian Eng > wrote: Unless someone has the exact model that is currently installed it's not as straight forward as just finding another regulator and swapping them out. In any event since the regulator is part of the pressure system make sure to coordinate the work with Bob. ________________________________ From: dsg-hallb_rtpc > on behalf of Carlos Ayerbe Gayoso > Sent: Wednesday, August 12, 2020 5:43 PM To: dsg-hallb_rtpc at jlab.org >; Sebastian Kuhn > Cc: Morgan Cook IV > Subject: [dsg-hallb_rtpc] Deuterium bottle Regulator Hi all, as mentioned by Stephan, the high pressure indicator of the deuterium bottle seems to show lower pressure that should be (I checked again and it shows ~ 1500psi) If the plan is to change the regulator (I don't know) and the problem is to find one (also, I don't know) I wonder if one of the regulators from W&M is available and if can be used. In the meanwhile, it seems to work well. Cheers -Carlos _______________________________________________ dsg-hallb_rtpc mailing list dsg-hallb_rtpc at jlab.org https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc -- Best regards, Mohammad Hattawy. _______________________________________________ dsg-hallb_rtpc mailing list dsg-hallb_rtpc at jlab.org https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc -------------- next part -------------- An HTML attachment was scrubbed... URL: From mcookiv at jlab.org Wed Aug 12 19:20:30 2020 From: mcookiv at jlab.org (Morgan Cook IV) Date: Wed, 12 Aug 2020 23:20:30 +0000 Subject: [dsg-hallb_rtpc] [EXTERNAL] Re: Deuterium bottle Regulator In-Reply-To: References: , <77C2E7E8-E5DE-4BE5-B629-349D06104B75@jlab.org>, Message-ID: Let's slow down some. Before we start swapping any parts out, we need to check with Dave Meekins and see if he actually measured 1800 psi on the bottle or if that's how it was ordered and delivered. It's rare for a gauge to just suddenly go bad. Unless he actually measured it and that's how it was ordered/delivered then, there's probably only 1500 psi in the bottle. It may have just been delivered light, it happens all the time. -Morgan ________________________________ From: Carlos Ayerbe Gayoso Sent: Wednesday, August 12, 2020 6:52 PM To: dsg-hallb_rtpc at jlab.org ; mhattawy at odu.edu Cc: Bob Miller ; Morgan Cook IV Subject: Re: [dsg-hallb_rtpc] [EXTERNAL] Re: Deuterium bottle Regulator Ok, please everybody calm down. The intention of my email was trying to find a solution to something that IT WAS not a problem and not urgent. Bryan has been very kind explaining that it is not as simple as take the first regulator, like one from W&M; and before my email, Stephan and Jiwan said that Morgan is taken care of it. My intention was to provide a fast resolution. Thanks, everybody. -Carlos ________________________________ From: dsg-hallb_rtpc on behalf of Jiwan Poudel Sent: Wednesday, August 12, 2020 6:11 PM To: dsg-hallb_rtpc at jlab.org ; mhattawy at odu.edu Cc: Bob Miller ; Morgan Cook IV Subject: Re: [dsg-hallb_rtpc] [EXTERNAL] Re: Deuterium bottle Regulator Morgan looked at it and told Stephen that he does not have a spare right now. Morgan also confirmed that regulator is working, and only one gauge (higher pressure side) seems bad. So we might get the replacement of that one soon. On Aug 12, 2020, at 6:06 PM, mhattawy at odu.edu > wrote: I will be providing tonight during my shift some pics and specifications for the model we are using. On Wed, Aug 12, 2020 at 6:05 PM Brian Eng > wrote: Unless someone has the exact model that is currently installed it's not as straight forward as just finding another regulator and swapping them out. In any event since the regulator is part of the pressure system make sure to coordinate the work with Bob. ________________________________ From: dsg-hallb_rtpc > on behalf of Carlos Ayerbe Gayoso > Sent: Wednesday, August 12, 2020 5:43 PM To: dsg-hallb_rtpc at jlab.org >; Sebastian Kuhn > Cc: Morgan Cook IV > Subject: [dsg-hallb_rtpc] Deuterium bottle Regulator Hi all, as mentioned by Stephan, the high pressure indicator of the deuterium bottle seems to show lower pressure that should be (I checked again and it shows ~ 1500psi) If the plan is to change the regulator (I don't know) and the problem is to find one (also, I don't know) I wonder if one of the regulators from W&M is available and if can be used. In the meanwhile, it seems to work well. Cheers -Carlos _______________________________________________ dsg-hallb_rtpc mailing list dsg-hallb_rtpc at jlab.org https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc -- Best regards, Mohammad Hattawy. _______________________________________________ dsg-hallb_rtpc mailing list dsg-hallb_rtpc at jlab.org https://mailman.jlab.org/mailman/listinfo/dsg-hallb_rtpc -------------- next part -------------- An HTML attachment was scrubbed... URL: