[Dsg-rich] Optical Tables in EEL/124

Tyler Lemon tlemon at jlab.org
Thu Oct 18 11:51:30 EDT 2018


Hello Yuri, 
When and how long would SVT need the optical tables? The small optical tables are in EEL 121B and are presently not being used for RICH for mirror testing. However, RICH will need to use the tables again when components start to arrive for the second sector. 

Marco and Valery, 
When can we expect new mirrors to arrive for the next RICH sector? DSG received word that components for the next sector may start to be delivered to JLab in the spring of next year. Should we expect mirrors to arrive at JLab at that time? We would need these optical tables for their acceptance testing. 

Best regards, 
Tyler 


From: "Brian Eng" <beng at jlab.org> 
To: "Yuri Gotra" <gotra at jlab.org> 
Cc: "Marco Contalbrigo" <mcontalb at fe.infn.it>, "Valery Kubarovsky" <vpk at jlab.org>, "Tyler Lemon" <tlemon at jlab.org> 
Sent: Thursday, October 18, 2018 11:40:43 AM 
Subject: Re: Optical Tables in EEL/124 

Hi Yuri, 

I think they're still in EEL/121B, but I'm not in today so I've CC'd Tyler as he is the POC for RICH work by the DSG and would better be able to answer that question. 

----- Original Message ----- 
> From: "Yuri Gotra" <gotra at jlab.org> 
> To: "Brian Eng" <beng at jlab.org> 
> Cc: "Marco Contalbrigo" <mcontalb at fe.infn.it>, "Valery Kubarovsky" <vpk at jlab.org> 
> Sent: Thursday, October 18, 2018 11:21:33 AM 
> Subject: Re: Optical Tables in EEL/124 

> Hello Brian, 
> 
> Now that we are about to start disassembly of SVT R4, could you please 
> tell us where are the SVT optical tables and if RICH is still using 
> them? Thank you 
> 
> On 4/6/16 11:32 AM, Latifa Elouadrhiri wrote: 
>> Dear Brian, 
>> 
>> Yes we do not need the optical tables now unless it is needed for 
>> repair. So we can use the tables for the RICH project. 
>> 
>> Best regards, 
>> 
>> Latifa 
>> 
>> On 4/5/16 4:19 PM, Brian Eng wrote: 
>>> Hi Latifa, 
>>> 
>>> If I understood Yuri's emails correctly there are no plans to use the 
>>> optical tables for the SVT this year. 
>>> 
>>> So is it okay if we use them for RICH? Basically they would have use 
>>> of them this year and next year only if SVT doesn't need them, but 
>>> SVT would revert to having priority at that time. 
>>> 
>>> Thanks 
>>> -- 
>>> Brian Eng 
>>> Detector Support Group 
>>> 757-269-6018 
>>> 
>>>> On Mar 31, 2016, at 11:52 AM, Yuri Gotra <gotra at jlab.org> wrote: 
>>>> 
>>>> Brian, 
>>>> 
>>>> I have no plans on using the optical bench this year. If no hardware 
>>>> failures happen with SVT we won't need them this year. Cannot say 
>>>> about the next year. In any case the possible loan of the optical 
>>>> benches to RICH should be approved by Latifa. 
>>>> 
>>>> On 3/31/16 11:38 AM, Brian Eng wrote: 
>>>>> I'm fairly sure they need both tables. They actually requested a 
>>>>> single large table, but can use the 2 smaller ones to get the same 
>>>>> result. 
>>>>> 
>>>>> Are there any plans to do replacements of the inner modules within 
>>>>> the next year? I know Yuri would like to replace some R4 modules 
>>>>> this summer. 
>>>>> 
>>>>> I think they actually only need the tables until later this year 
>>>>> (last mirror arriving Nov 16), but figured I'd double it to allow 
>>>>> for extra testing/delays. 
>>>>> 
>>>>>> On Mar 31, 2016, at 11:30 AM, Saptarshi Mandal <mandal at jlab.org> 
>>>>>> wrote: 
>>>>>> 
>>>>>> Brian, 
>>>>>> 
>>>>>> We would need one optical table if we ever need to replace modules 
>>>>>> from the SVT especially inner regions. So we should hold on to 
>>>>>> one. The other one can be given to the RICH group. 
>>>>>> 
>>>>>> Saptarshi 
>>>>>> 
>>>>>> ----- Original Message ----- 
>>>>>> From: "Brian Eng" <beng at jlab.org> 
>>>>>> To: "Saptarshi Mandal" <mandal at jlab.org> 
>>>>>> Cc: "Yuri Gotra" <gotra at jlab.org>, "rossi patrizia" <rossi at jlab.org> 
>>>>>> Sent: Thursday, March 31, 2016 9:12:07 AM 
>>>>>> Subject: Optical Tables in EEL/124 
>>>>>> 
>>>>>> Saptarshi, 
>>>>>> 
>>>>>> Will the SVT need to use the optical tables that are in the big 
>>>>>> clean room anymore? 
>>>>>> 
>>>>>> RICH would like to use them for testing their mirrors. 
>>>>>> 
>>>>>> Thanks 
>>>>>> -- 
>>>>>> Brian Eng 
>>>>>> Detector Support Group 
>>>>>> 757-269-6018 
>>>> <gotra.vcf> 
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