sPHENIX discussion of the superconducting solenoid

["Yip, Kin" <kinyip AT bnl.gov>]

Hi,

 

Just think to write a message for the progress in 1008B mezzanine …

 

1.

We’ve needed to wait until last Wed., Mar. 3 (maintenance day) to actually “give power” to 1008B mezzanine floor.  Because in order to actually connect to the actual power, we had to power off everything in 1008B

which included some RHIC-related electrical devices.   Don Bruno (RHIC) didn’t want his devices to be shut off when RHIC was running and so we delayed until the Maintenace Day (Mar. 3, 2021).  After we got the

message from Dennis Donaldson (who works with PK Feng in the C-AD Power Distribution Group) below :

 

Good Morning ALL.  

Yes there is power to the new panel on the 1008 mezz.

All the new receptacles (for Carl)  are energized and there is power to the tall rack and control power to the large DC power supply and resistor. 

Please make sure everyone is aware of the need for LOTO if working in/on this equipment.

Regards,

Dennis

====================================================================================

 

 

2.

Carl Schultheiss is now trying to get table, computer etc.   He noticed the main “quench detector” (National Instrument PXIe) is missing in the Rack.  He’s contacting Charlie Theisen / Chung Ho about that.

( Charlie once told me a while ago that he’s solved the problem of getting the file out of the PXIe to a convenient location where people can check the file after a quench. )

 

And of course, we need network and you can see that we’re contacting the Network group for it.  A missing “B” after 1008 made some confusion.   Bill Eisele later told me on phone that there is 1 Gbps network in 1008B.

 

Carl paid a visit to 1008B yesterday morning.  I did it a few times including yesterday afternoon and Feb. 24.   I took a not-so-good picture (attached) but you can see that the terminals for

the MCM cables were well-insulated by these transparent boxes 😊

 

We’ve had a lot of cable trays already in 1008B mezzanine and the electricians have added some and they’re now trying to finish a path from our quench detector/DAQ rack to the penetration

in 1008B which provides an exit path (with cable tray) to outside 1008B (leading to the penetration of the West of 1008 to go into 1008 Experimental Hall).

 

Yesterday, I inspected  that the wires on the Phoenix Connectors on the DAQ rack (related to our Strain Gauge, 3 temperature connections and 4 Linear Pots) to are all still there connected

to the Agilent MUX (in the DAQ rack).   We just need to re-connect the other end (from the rack to the Magnet 😊 ).

 

Kin

 

From: Eisele, William <weisele AT bnl.gov>
Sent: Friday, March 5, 2021 2:43 PM
To: Yip, Kin <kinyip AT bnl.gov>; Schultheiss, Carl <carls AT bnl.gov>
Subject: Re: Network in 1008

 

Kin,

Thanks for the clarification on that. We have much better infrastructure in the "B" buildings, and less distance to be concerned about as well.

-Bill

On 3/5/21 2:18 PM, Yip, Kin wrote:

Hi,

> we should get a switch with 24 ports and power supply redundancy.

Sounds good anyway !

 

> Kin, do we know if that will be needed in this area? How is Monday for you?

Carl told me that there is a "control room" on the first floor of 1008B where there is already network.  Tom Tallerico (Cryo)and I briefly chatted

on this a couple times.  They've probably had enough.  If not, they may contact you to add.

Kin

On 3/5/21 2:05 PM, Eisele, William wrote:

Hi Carl,

If this is considered to be mission critical (I am assuming so), we should get a switch with 24 ports and power supply redundancy. Also we prefer to have link redundancy feeding the switch as well, so I need to assess the situation with regards to network to see if we have all of that. Currently in the 1008A building, I only have 100Mb infrastructure, so that may need to be addressed as well. We have gotten by with 100mb in the past for Phenix, but being this is a new project, it pays to keep that in mind. I will need 1u of rack space for that type of switch, 2 power outlets. If the length to my nearest point of presence is much over 250 feet, we may need to run fiber optics to feed this. When we did the high field test I also had to supply network for controls and cryogenics. Kin, do we know if that will be needed in this area? How is Monday for you?

-Bill

On 3/5/21 1:51 PM, Schultheiss, Carl wrote:

The switch would go in the quench detector rack. That rack

is a standard 19” rack, there is about 6 U available for height.

Power is already installed. Most cables are already run. As I said

there appears to be a network run from the control room now.

We need five right now, I included some spares. If the price isn’t too much

we should get the 24 port model, if it fits. If you think height is a problem,

let me know and I will measure it. Generally switches don’t require too much

height.

 

Thanks

 

Carl

From: Eisele, William <weisele AT bnl.gov>
Sent: Friday, March 5, 2021 1:40 PM
To: Schultheiss, Carl <carls AT bnl.gov>
Cc: Yip, Kin <kinyip AT bnl.gov>
Subject: Re: Network in 1008

 

Carl,

If you need 8 ports, we should probably get 24 so that we aren't fully utilized right away. Is that how many connections you will need? Also, I would like to meet to be clear on exactly where you will need the connections. Is power already in the area? I would imagine other cables need to be run in addition to install of the switch. Also, what is your time frame? Lead times are a bit lengthy due to covid right now, but I may be able to use a switch from another job.

-Bill

On 3/5/21 1:33 PM, Schultheiss, Carl wrote:

Hi Bill,

 

   I was at 1008 to access the state of affairs so

we can begin testing of the sPhenix Quench Detector.

We had a network switch for the high field test, you

removed it at the end of the test. We need one permanently.

If we have to buy one go ahead, Kin Yip can give you a number to charge.

We need at least 8 ports.

   It looks like there is a network feed from the control room up

to the mezzanine, I don’t know if it is connected downstairs.

Let me know when the switch can be installed.

 

Thanks

 

Carl Schultheiss

Brookhaven National Laboratory

Principal Electrical Engineer

carls AT bnl.gov

(631) 344-2504

 

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Bill Eisele

Brookhaven National Laboratory

Collider-Accelerator Department

631-344-2143

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Bill Eisele

Brookhaven National Laboratory

Collider-Accelerator Department

631-344-2143

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--

Bill Eisele

Brookhaven National Laboratory

Collider-Accelerator Department

631-344-2143

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